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AxiomApe

Your Online Tools: Right Where You Left Them

Your Personal Hub for Utilities, Calculators, Makers, Reversers, Checkers, Validators, Rotators, Cutters, Minifiers, Estimators, Unscramblers, Counters, Recorders, Analyzers, Generators, Downloaders, Builders, Converters, Trackers & Other Tools.

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Health & Wellness

Custom Interval Countdown Workout Timer

Set variable timing structures for HIIT, Tabata, and circuit training with audio cues.

Supplement Tracker

Log and manage your daily supplements and vitamins.

Sleep Calculator

Find ideal bedtimes based on sleep cycles so you wake refreshed.

Compute your Body Mass Index and healthy weight range.

Calorie Counter

Track daily calories and macros to hit your nutrition goals.

Calories Burned Calculator

Estimate calories burned based on your weight, activity, and duration.

Macro Calculator

Find your ideal protein, carb, and fat targets based on your goals.

Body Fat Calculator

Estimate body fat percentage using the Navy or BMI method.

Habit Streak Tracker

Log daily habit completions, track streaks, and calibrate past entries. 100% private and browser-based.

Ideal Body Weight Calculator

Determine your ideal weight range based on height and frame size.

Water Intake Calculator

How much water should you drink daily? Find your personal target.

Intermittent Fasting Schedule Creator

Map your 16:8, OMAD, or custom fasting and eating windows across a full weekly cycle.

Heart Rate Zones

Calculate your training zones for fat burn, aerobic, and peak effort.

Running Pace Calculator

Calculate pace per mile/km or finish time for any race distance.

One Rep Max Calculator

Estimate your 1RM for any lift from your working-weight reps.

Pregnancy Due Date

Estimate your pregnancy due date from last period or conception date.

Ketogenic Net Carb Tracking Log

Deduct dietary fiber and sugar alcohols from total carbs to isolate your true daily glycemic carb count and stay in ketosis.

BMR Comparative Engine

Compare your basal metabolic rate across all four major medical formulas simultaneously.

Glycemic Load Evaluator

Aggregate individual meal ingredients to isolate peak blood sugar impact using the GL formula.

Body Surface Area Calculator

Compute metric BSA in m2 using four clinical formulas: Mosteller, DuBois, Haycock, and Gehan-George.

Macro-Nutrient Caloric Energy Tester

Verify your protein, carb, fat, and alcohol gram inputs against your daily calorie target using the Atwater 4-4-9 rule.

Finance

ROAS Calculator

Measure your ad campaign profitability, calculate net profit, and find your exact break-even ROAS target for Facebook, Google, and any paid ads.

E-commerce Conversion Rate and CRO Calculator

Find your exact store conversion rate, then simulate how a small lift in your target rate generates massive extra revenue from the same traffic.

Stripe Fee Calculator

Estimate Stripe payment processing fees, see your exact net payout, and calculate how much to charge a customer to receive a specific net amount after fees.

PayPal Fee Calculator

Estimate PayPal Goods and Services fees, invoice costs, and your exact net payout, then find out how much to charge buyers to get your full asking price.

Lottery Odds and Expected Value (EV) Calculator

Check the true Powerball and Mega Millions odds, estimate lump sum and federal taxes, and see if a ticket is mathematically worth it.

Amazon FBA and Retail Arbitrage Profit Calculator

Estimate Amazon referral and FBA fees to find your true net profit, ROI, and margin on any product flip.

Etsy Fee and Profit Calculator

Estimate Etsy listing, transaction, payment processing, and offsite ads fees to find your true net profit and margin on every sale.

Dropshipping Profit Margin Calculator

Estimate product costs, Shopify and payment fees, and ad spend (CPA) to find your true dropshipping net profit and break-even ad spend.

eBay Fee & Profit Calculator

Estimate eBay final value fees, promoted listings, shipping, and sales tax to find your exact net profit, ROI, and margin.

Shopify Fee & Plan Comparison Calculator

Compare Shopify Basic, Shopify, and Advanced plans, estimate credit card transaction fees, and find the most profitable plan for your store.

401k Max-Out and Employer Match Optimizer

Calculate the exact per-paycheck contribution to capture every dollar of corporate matching without hitting the IRS limit early.

HSA Growth Forecaster

Project your Health Savings Account balance at retirement and quantify the lifetime value of the triple-tax advantage.

Roth IRA vs. Traditional IRA Comparator

Model your future tax brackets to find the most tax-efficient retirement account and maximize after-tax wealth.

Sequence of Returns Risk Simulator

Model how an early bear market depletes your retirement portfolio years faster - even with identical 30-year average returns.

BRRRR Strategy Calculator

Analyze Buy, Rehab, Rent, Refinance, Repeat cycles and find your cash left in the deal.

Capital Gains Tax Calculator

Estimate short-term vs. long-term capital gains tax, including the NIIT surtax, by filing status.

Capital Gains Tax Estimator

Compare short-term vs. long-term capital gains tax rates by income bracket with NIIT surcharge and net profit calculation.

TaxFlow Pro: Business Tax Return

Step-by-step business tax calculator that generates official-format federal and Virginia returns for sole proprietors, LLCs, S-Corps, and C-Corps.

FHA vs. Conventional Loan Comparator

Compare down payments, PMI vs. MIP costs, and total lifetime expenses for FHA and conventional mortgages.

Mortgage Payment Calculator

Estimate monthly payments based on price, rate, and term.

Mortgage Refinance Calculator

Compare your current mortgage to new terms and find your break-even point.

Amortization Schedule

Full payment-by-payment breakdown of principal and interest.

Plan income vs. expenses and visualize your budget strategy.

Social Security Estimator

Estimate your Social Security check.

Retirement Calculator

Project your nest egg and figure out when you can retire.

Calculate prorated rent for a partial month move-in.

Compound Interest Calculator

Watch your money grow with compounding over time.

Split the bill and calculate tips for any group size.

Bill Splitter Tip Adjustment Matrix Calculator

Divide group restaurant costs by custom percentage shares or fixed amounts per person.

Loan Calculator

Calculate monthly payments and total interest for any loan.

Business Loan Affordability Calculator

Estimate business loan payments and check bank approval odds with DSCR.

Car Loan Payment Calculator

Estimate auto loan payments with trade-in and down payment.

Debt Payoff Planner

Use snowball or avalanche method to crush your debt faster.

Net Worth Calculator

Tally assets vs. liabilities to see your true financial picture.

Savings Calculator

How long to reach a savings target with regular contributions?

Hyper-Inflation Purchasing Power Visualizer

Simulate how cash, gold, real estate, equities, and Bitcoin hold up against fiat decay rates up to 200%.

Coffee and Micro-Expense Habit Compounder

Discover the 30-year opportunity cost of small daily spending habits and see how investing that money instead compounds into real wealth.

Inflation Calculator

See how purchasing power changes over time using historical CPI data.

Paycheck Calculator

Estimate your net paycheck after federal, state, and FICA taxes.

Salary to Hourly Converter

Convert annual salaries to hourly rates - and vice versa.

Margin & Markup Calculator

Calculate gross margin, markup, and profit for pricing products.

Wholesale to Retail Markup Calculator

Convert wholesale cost into a profitable retail price using markup, margin, or keystone pricing.

Freelance Rate Calculator

Calculate what you need to charge based on expenses and income goals.

Measure the return on investment for any financial decision.

Break-Even Calculator

Find the sales volume where revenue covers your total costs.

Calculate systematic investment plan returns and wealth creation.

Website Ad Revenue Calculator

Calculate your earnings and RPM for AdSense, Raptive, Mediavine, and more. Enter your traffic details for an instant estimate.

Website Ad Optimizer

Estimate your potential RPM, viewability, and monthly ad revenue based on traffic, niche, CTR, and ad placement.

DRIP Calculator

See how reinvested dividends and share price growth compound your portfolio over time.

FIRE Calculator

Find the exact age you can reach financial independence based on income, expenses, and savings rate.

Auto Depreciation Estimator

Project your car's value over 5, 10, or 15 years based on category, age, and mileage.

Credit Card Payoff Calculator

See how much time and interest you save by paying more than the minimum on your credit card.

HELOC Estimator

Project your available home equity line of credit based on home value, mortgage balance, and lender LTV limit.

Property Tax Estimator

Calculate annual property taxes from millage rates, assessed value, and exemptions.

Rent vs. Buy Calculator

Compare the true total cost of buying a home against renting and investing the difference, with net worth projections at any time horizon.

Real Estate Cap Rate and NOI Calculator

Evaluate commercial or residential rental property returns by computing Net Operating Income and Capitalization Rate instantly.

Bi-Weekly Mortgage Payment Calculator

See how many years and how much interest you save by switching to bi-weekly payments.

Debt Consolidation Loan Evaluator

Simulate rolling multiple high-interest debts into a single fixed-rate loan and see your monthly cash flow impact instantly.

72t Distribution Calculator

Calculate penalty-free early retirement withdrawals using the IRS Fixed Amortization and Minimum Distribution SEPP methods.

CAC and LTV Calculator

Map unit economics for SaaS and retail: compute CAC, lifetime value, LTV:CAC ratio, and payback period in real time.

SaaS Churn Rate and MRR Forecaster

Project MRR compounding from churn, new acquisition, and expansion revenue. See ARR and NRR at any time horizon.

Subscription Box Churn and LTV Calculator

Turn your monthly churn into an average customer lifetime, then find your LTV, LTV to CAC ratio, and true recurring profit per subscriber.

Reorder Point and Safety Stock Calculator

Find your exact safety stock and the inventory level that triggers a new order so you reorder before you sell out.

Inventory Turnover Ratio Calculator

Measure supply chain efficiency and product sales velocity with COGS, average inventory, and Days Sales of Inventory.

Supply Chain Safety Stock Calculator

Use the statistical Z-score method to find your exact buffer stock and reorder point from demand, lead time, and target service level.

Economic Order Quantity (EOQ) Calculator

Find the optimal order size that minimizes combined ordering and holding costs from annual demand, setup cost, and unit cost.

Equipment Lease vs. Buy Calculator

Compare the after-tax NPV cost of leasing vs. financing corporate assets to find the optimal decision for your business.

Accounts Receivable DSO Calculator

Measure collections efficiency and see how much cash is trapped in receivables above your target DSO.

Working Capital Ratio Calculator

Compute your Current Ratio and Quick Ratio to analyze short-term liquidity and net working capital.

Corporate Tax Flow Through Simulator

Model and compare tax liabilities for LLCs vs. S-Corporations. See your FICA savings, income tax, and annual bottom-line difference in real time.

Business Valuation EBITDA Multiplier

Estimate small business worth using Adjusted EBITDA and industry earnings multiples with standard add-back normalizations.

Depreciation Schedule Calculator

Generate MACRS, Straight-Line, and Double-Declining Balance tax schedules instantly with a full amortization table.

COGS Calculator

Calculate your true Cost of Goods Sold from beginning inventory, direct materials, direct labor, and manufacturing overhead with real-time gross margin output.

DRIP Visualizer

Track how reinvested dividends compound your share count and portfolio value over time. Compare DRIP vs. cash payout with a period-by-period simulation.

College Savings 529 Plan Estimator

Project future tuition costs with inflation, find your funding shortfall, and calculate the exact monthly 529 contribution to fully fund your child's education.

Car Lease Money Factor Inspector

Convert any dealership money factor to its true APR and calculate the total finance charge hidden inside your lease contract.

Arbitrage Betting Calculator

Find sure bets across 2-way and 3-way markets, calculate exact stakes from decimal odds, and lock in a guaranteed profit.

Stock Merger Arbitrage Calculator

Project your net profit, absolute return, and annualized return (APY) on the deal spread between a buyout offer price and the current market price.

Crypto DEX Arbitrage Calculator

Factor in gas fees, DEX trading fees, and slippage to find the true net profit and net ROI on cross-exchange DeFi arbitrage trades.

Crypto Funding Rate Calculator

Build a delta neutral position, find your exact spot and short allocations, calculate funding fees, and project your passive APY.

Point Spread Middle Calculator

Find overlapping point spreads, calculate equalized hedge stakes, see your win window, and size the double payout when the middle hits.

Free Bet Conversion Calculator

Convert a sportsbook free bet or bonus into guaranteed risk-free cash with the exact hedge stake and conversion rate.

Live Bet Hedge Calculator

Hedge a live in-play bet, calculate the exact opposite-outcome stake, and lock in a guaranteed profit mid-game.

Text & Formatting

Switch text between UPPERCASE, lowercase, Title Case, aLtErNaTiNg, and more.

Real-time count of words, characters, sentences, and reading time.

Find and Replace

Quickly swap out words or phrases in bulk text without an editor.

Delete Duplicates

Paste a list and strip identical entries in one click.

Sort any list of items from A-Z or Z-A instantly.

Convert a column of text into a comma-separated list - perfect for SQL.

Flip any text backward - reverse words, letters, or lines.

Markdown to HTML

Instantly convert Markdown formatting into clean HTML code.

HTML to Markdown

Strip HTML tags into clean, readable Markdown formatting.

Lorem Ipsum Generator

Generate placeholder text of any length for mockups and layouts.

URL Slug Generator

Turn blog post titles into URL-friendly slugs like my-post-title.

Prefix and Suffix Tool

Add a character or word to the start or end of every line in a list.

Fancy Font Generator

Convert text into cursive, bold, or aesthetic Unicode font styles.

Replace With Emoji

Replace keywords in your text with relevant emojis automatically.

Keyword Density Matrix Tool

Map repetitive phrases and measure keyword density across any document with N-gram frequency analysis.

Math & Education

Scientific Calculator

Full-featured calculator with trig, logs, exponents, and memory.

Percentage Calculator

Calculate percentages, percent change, and percentage of totals.

Fractions Calculator

Add, subtract, multiply, divide, and simplify fractions easily.

Calculate weighted or unweighted GPA across all your courses.

Grades and Exams Calculator

Find your current grade or what score you need on the final exam.

Statistics Computer

Compute mean, median, mode, variance, and standard deviation.

Probability Calculator

Calculate odds, combinations, and permutations for any event.

Geometry Calculator

Area, perimeter, and volume for circles, triangles, polygons & more.

Matrix Calculator

Add, subtract, or multiply two matrices up to 5x5 with real-time results.

Matrix Multiplication and Determinant Solver

Multiply, add, subtract matrices and compute determinants on custom grids up to 5x5 with instant results.

Standard Deviation Calculator

Step-by-step solver for variance and standard deviation with full breakdown table.

Projectile Motion Simulator

Simulate trajectories across Earth, Moon, and Mars gravity with metric and imperial unit switching.

Classical Kinematics Calculator

Trace projectile arcs with air resistance, horizontal acceleration, and a real-time SVG physics-lab graph.

Linear Regression Trend Calculator

Plot scatter points and output the line of best fit, slope, Pearson r, and R-squared instantly.

Multi-Stage Kinematics Calculator

Solve velocity, displacement, and time across up to 10 chained acceleration segments with real-time results.

Permutation and Combination Generator

Paste a custom set, choose a subset size, toggle order and repetition, and instantly see every possible arrangement listed.

Bayes' Theorem Calculator

Compute posterior probability from prior, sensitivity, and false positive rate instantly. Includes natural frequency translation and scenario presets.

Projectile Motion Vector Animator

Watch a real-time parabolic arc redraw on an auto-scaling canvas as you adjust velocity, angle, height, and gravity.

Diffie-Hellman Key Exchange Simulator

Watch Alice and Bob derive an identical shared secret over a public channel using live modular exponentiation.

Vector Dot and Cross Product Computer

Compute dot products, cross products, magnitudes, and the angle between 2D or 3D vectors with full step-by-step math.

Prime Factorization Engine

Break any integer into its core prime components with a live factor tree, expanded array, and exponential form.

Quadratic Formula Solver

Solve ax2+bx+c=0 instantly. Outputs real and complex roots, discriminant, and parabola vertex.

Base-N Radix Calculator

Convert any number between Base-2 and Base-36 instantly. BigInt precision, positional weight breakdown, and a quick-reference matrix for all common bases.

Logarithmic and Exponential Growth Computer

Model continuous, discrete, and logistic S-curve growth. Live curve, 10-point forecast schedule, doubling time, and the Rule of 72.

Fibonacci Sequence Matrix Visualizer

Watch the Golden Spiral grow live as you generate any additive sequence and track convergence to Phi in real time.

Chemical Equation Balancer

Balance any chemical equation instantly using algebraic matrix math. Shows coefficients, atom counts, and a conservation of mass check.

Interactive Periodic Table

Click or hover any of the 118 elements to instantly inspect atomic mass, electron config, group, period, block, and state. Filter by category.

Electron Configuration Layout Solver

Trace subshell assignments for any of the 118 elements or a custom electron count. Includes ion charge adjuster, orbital diagram, and quantum numbers.

Freight Cargo Volume Cube Estimator

Calculate how many boxes or pallets fit inside any shipping container. CBM calculator with orientation engine, weight vs. volume limit detection, and load plan generator.

Structural Beam Deflection Calculator

Estimate bending tolerances for loaded materials. Compute maximum deflection for simply supported and cantilever beams with L/240 and L/360 industry tolerance checks.

Weighted Decision Matrix Priority Selector

Grade complex options against custom importance metrics. Set criteria weights, score each option 1-10, and get an instant ranked leaderboard with Markdown export.

Lunar Phase Orbit Ephemeris Simulator

Project moon visibility profiles, lunar illumination percentage, and phase age from any date. Real-time synodic cycle math and 30-day lunar calendar.

Leap Year Century Validation Schedule Index

Validate any year under Gregorian or Julian calendar rules with a full three-step century rule breakdown and generate a leap year schedule for any date range.

Leitner Flashcard Box System Spaced Repetition Forecaster

Schedule flashcard reviews with the Leitner spaced repetition system to maximize memory retention and active recall.

Reading Speed Comprehension Goal Estimator

Estimate reading durations for long text blocks. Paste text or enter a word count, pick your comprehension goal (skim, casual, or deep study), and get an instant reading time with a session planner.

Academic Grade Weighted Average Calculator

Balance syllabus category weights and isolate your current class standing based only on graded assignments.

Science & Conversion

Towing Capacity and Payload Margin Tracker

Balance total vehicle weights for safe hauling. Instantly checks tongue weight, remaining payload, and GCWR margin to flag overweight violations.

HP to kW Converter

Convert Mechanical HP, Metric PS, and Kilowatts instantly. Compare ICE engine output to EV motor power with real-world equivalency context.

Tire Size Dimensional Variance Calculator

Compare OEM vs. new metric tire dimensions and calculate speedometer offset. Flags AWD safety warnings for diameter changes over 3%.

Pendulum Harmonic Motion Oscillator

Simulate pendulum swings in real time. Set length, mass, angle, and gravity to instantly calculate period, max velocity, and energy.

Ideal Gas Law Calculator

Enter any 3 variables and instantly solve for the 4th. Covers P, V, n, and T with full unit conversion.

Empirical Formula Calculator

Enter elements with mass percentages or grams to instantly find the lowest whole-number mole ratios and display the empirical formula with step-by-step work.

Molarity and Solution Dilution Calculator

Compute concentration from solid mass or dilute a stock solution. Full unit support for M, mM, uM, g, mg, L, mL.

Molecular Weight Calculator

Find the molar mass of any compound and see a full percent composition breakdown. Handles parentheses and hydrates.

Boyle's and Charles' Law Comparator

Toggle between Boyle's and Charles's Law. Fill three fields and instantly solve the fourth with full unit support for pressure, volume, and temperature.

Specific Heat Capacity Calculator

Fill any four of five variables and instantly solve for Q, mass, specific heat, T1, or T2. Material presets for water, ice, aluminum, and copper included.

Ohm's Law Calculator

Lock any two electrical variables and instantly solve for Voltage, Current, Resistance, and Power.

Gravitational Attraction Calculator

Compute gravitational force and body accelerations between any two masses using Newton's Law of Universal Gravitation.

Light Years Converter

Convert light years to miles, km, AU, and other cosmic distances.

Units Converter

Convert between any units - length, weight, temp, volume, and more.

Time Zone Converter

Find meeting times and convert clocks across every world time zone.

World Time Zone Visual Meeting Grid Planner

Add global team locations and find optimal meeting windows on a live 24-hour heatmap.

Time Lived Calculator

Calculate exact age in years, months, days, or seconds from a birthdate.

Currency Exchange

Live exchange rates for 150+ world currencies.

Binary Converter

Convert between binary, octal, decimal, and hexadecimal.

Julian Day Number Calendar Converter

Translate astronomical dates into standard formats. Convert any calendar date to JDN, Modified Julian Day, and Reduced Julian Day with UTC time precision.

Unix Epoch Converter

Convert between Unix epoch timestamps and human-readable dates.

Unix Epoch Timestamp Converter

Convert Unix timestamps to human-readable dates and back, with UTC, ISO 8601, and relative time output.

Global Numeral Converter

Convert between Arabic, Roman, Mayan, Babylonian, Egyptian, Chinese, Devanagari, Thai, Greek, and Hebrew numerals instantly.

Find the exact days, weeks, or months between any two dates.

Speed Calculator

Solve for speed, distance, or time given the other two values.

Miles Per Gallon Calculator

Calculate MPG, trip fuel cost, and compare vehicles side-by-side.

Gas Usage Budget Metric Converter

Convert fuel efficiency between US MPG, UK MPG, L/100km, and km/L. Includes road trip fuel cost estimator.

Relativity Simulator

Interactive time dilation simulator: use a velocity slider to compare elapsed time on a spaceship versus Earth.

Wave Mechanics Solver

Compute frequency, period, wavelength, and wave velocity for sound and light waves in real time.

Reynolds Number Calculator

Classify pipe flow as Laminar, Transitional, or Turbulent instantly using fluid presets and real-time Re calculation.

Half-Life Radioactive Decay Visualizer

Project isotope breakdown schedules over time with a live decay curve, four-variable solver, and half-life schedule table.

Thermal Insulation Heat Loss Conduction Solver

Build a multi-layer wall or roof assembly and instantly compute R-value, U-value, and heat loss rate using Fourier's law.

Radioactive Isotope Half-Life Computer

Select from 20+ preset isotopes or enter custom values. Auto-solves for final amount or time elapsed and renders a live SVG decay curve with half-life markers.

Centripetal Force Rotation Estimator

Compute centripetal acceleration, G-force, and structural load on any rotating setup. Synced RPM, angular velocity, and linear velocity inputs.

Braking Distance Kinetic Energy Dissipation Solver

Calculate total stopping distances across slick paths. Enter speed, vehicle weight, and road condition to compute reaction distance, braking distance, and kinetic energy your brakes must absorb.

Kinetic Energy Impact Dissipation Computer

Track structural forces generated by moving bodies. Enter mass, velocity, and deformation distance to compute total kinetic energy, average impact force, and deceleration G-force using the work-energy principle.

pH and Hydrogen Ion Concentration Solver

Enter any one value and instantly solve for pH, pOH, [H+], and [OH-]. Live pH scale gradient with fluid presets and real-time acidity visualization.

Engine Displacement Calculator

Convert bore and stroke to CID, cc, and liters instantly. Includes an overbore simulator for machine shop boring calculations.

Engine Compression Ratio Calculator

Compute static CR from bore, stroke, chamber volume, piston dome or dish, deck clearance, and gasket specs. Inches or millimeters.

Gear Ratio and Vehicle Top Speed Simulator

Project output speeds based on transmission and tire diameter. Instant MPH and KM/H from RPM, gear ratio, axle ratio, and tire size.

Great Circle Distance Calculator

Calculate the shortest flight path between any two points on Earth. Enter coordinates or IATA airport codes for distance in km, miles, and nautical miles plus initial bearing.

Wind Load Structural Pressure Estimator

Calculate dynamic wind pressure and total mechanical force on flat walls. Uses P=0.5xrhoxv2xCd with metric and imperial unit support.

Image & Design

Change the dimensions of any image file right in your browser.

Reduce JPG and PNG file sizes for faster web loading.

WebP to JPG Converter

Convert WebP images back into universally accepted formats.

HEIC to JPG Converter

Convert iPhone HEIC photos into standard JPG files.

Image to Favicon Converter

Upload an image and export the .ico files needed for browser tabs.

Color Palette Creator

Extract a beautiful color palette from any uploaded image.

HEX to RGB Converter

Translate web colors between HEX, RGB, and HSL formats instantly.

Gradient to CSS Converter

Create beautiful gradients visually and copy the CSS code instantly.

Box Shadow Generator

Build CSS box shadows visually with live preview and code output.

Watermark Maker

Overlay text or a logo watermark onto any image.

Profile Picture Maker

Remove backgrounds and add solid color fills for LinkedIn or X/Twitter.

Add top and bottom text to classic meme templates.

SVG Text to Path Converter

Convert system fonts into raw vector path outlines. Upload a TTF/OTF file or use web-safe fonts for instant SVG export.

SVG Path Shape Morphing Playground

Morph any two SVG path shapes with live preview and CSS or GSAP code export.

Golden Ratio Layout Grid Configurator

Generate phi-proportioned column widths, typography scales, and CSS grid code with a live wireframe preview.

CSS Clip-Path Maker

Plot polygon vertices on a live canvas and copy the responsive clip-path CSS code instantly.

CSS Glassmorphism Generator

Generate backdrop-filter blur, RGBA opacity, and border illumination CSS for frosted glass UI cards.

Contrast Ratio Grid Accessibility Analyzer

Generate a full WCAG contrast matrix for any color palette. Check every foreground and background pair for AA, AAA, and Large Text compliance.

Golden Hour Photographic Lighting Forecaster

Compute exact golden hour and blue hour windows for any location and date using NOAA solar algorithms. GPS or manual coordinates.

Developer & Webmaster

Unix Millisecond Micro-Timestamp Inspector

Paste a raw epoch integer stack and instantly detect precision, convert to ISO 8601 UTC, and isolate delta time variations.

Hidden Unicode Zero-Width Space Detector

Find and strip invisible tracking characters hidden in copied web text instantly.

Base-64 Configuration Array Key Injector

Bulk-encode config parameters, API keys, and secret values to Standard or URL-Safe Base64 instantly.

CamelCase / snake_case Text Mutator

Swap program coding casing structures instantly between camelCase, snake_case, PascalCase, kebab-case, and more.

Slugified File Name Batch Standardizer

Bulk convert any list of file names or titles to URL-safe, SEO-friendly slugs instantly.

Variable Font Feature Axis Tester

Adjust dynamic font axes and OpenType features live, then copy the CSS.

Beautify messy JSON and check for syntax errors instantly.

XML to JSON Converter

Translate between XML and JSON data formats in one click.

SQL Input Sanitizer

Escape and harden SQL string inputs against injection attacks in real time.

YAML to JSON Converter

Convert data layout formats without server calls. Real-time, bi-directional.

Compress CSS files to reduce load times and file size.

JavaScript Minifier

Remove whitespace and comments from JS files to shrink them.

Strip editor metadata, round path data, and minify SVG code instantly.

Strip whitespace and comments from HTML to speed up pages.

Generate random unique identifiers for databases and APIs.

IP Address Lookup

Instantly see your public IP address and location metadata.

Write and test regular expressions with live match highlighting.

SEO Meta Generator

Create SEO-friendly meta titles and descriptions for any page.

Open Graph Generator

Generate the code that makes links look great when shared on social media.

Encode text or images to Base64 strings - and decode them back.

URL Percent Encoder

Percent-encode URLs and decode encoded strings in one click.

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes for any text.

Paste two blocks of text or code side-by-side to highlight differences.

Levenshtein Distance

Measure the edit distance between two strings and visualize the exact transformation path.

Convert between px, rem, and em for CSS with a custom base font size.

Robots.txt Generator

Create the file that tells search engine bots how to crawl your site.

Bottleneck Calculator

Estimate PC performance and identify hardware limitations based on CPU cores and RAM.

Cron Job Generator

Build cron expressions visually and translate any cron schedule into plain English.

Paste any JSON Web Token for an instant color-coded breakdown of header, payload, and signature.

Beautify raw SQL with syntax highlighting, keyword casing, and indentation options.

CSS Grid and Flexbox Layout Builder

Drag and drop child elements and copy clean CSS output for Grid or Flexbox layouts instantly.

Base64 Image Data-URI Injector

Convert image files into inline CSS background-image rules using Base64 Data-URIs.

Web Safe Typography Generator

Preview web-safe font fallback stacks and copy CSS variables for your modular type scale.

Tailwind CSS Configurator

Build custom color palettes and spacing scales, then export a ready-to-paste tailwind.config.js or theme.json file.

Tailwind Arbitrary Value Map

Translate pixel sizes into native Tailwind classes, JIT bracket notation, and a tailwind.config.js theme extension block.

CSS Aspect-Ratio Box Sizing Visualizer

Set container dimensions, pick object-fit and aspect-ratio, then see exact crop pixels, letterbox gaps, and distortion math live.

Cubic-Bezier Animator

Drag control handles on an SVG graph to build custom CSS easing curves and copy the generated transition property.

Cron Job Expression Translator

Paste any crontab string for an instant plain-English breakdown, color-coded field dissection, and next 3 run times.

HTML Entity Encoder / Decoder

Convert raw characters to safe HTML entities or decode them back - with XSS-safe standard, extended, and numeric modes.

CIDR Subnet Calculator

Break down any IPv4 CIDR block into its network address, broadcast address, wildcard mask, and full usable host range.

Security Headers Policy Generator

Build a Content-Security-Policy visually, get instant security analysis, and copy deployment code for Nginx, Apache, or HTML.

RegEx Visual Explainer

Dissect any regular expression into color-coded, plain-English building blocks with live match highlighting.

Regex Content Redaction Tool

Strip or replace any text pattern locally. Redact emails, phone numbers, SSNs, and credit cards with a custom regex and zero data upload.

Htaccess Redirect URL Mapping Tool

Build Apache mod_rewrite rules for HTTPS, WWW canonicalization, trailing slashes, and custom 301/302 redirect maps.

DNS Record Staging Generator

Build A, AAAA, CNAME, MX, and TXT record strings with real-time validation and dual BIND plus cloud provider output.

Nginx Reverse Proxy Config Builder

Generate upstream server blocks, pick a load balancing method, and get a ready-to-paste nginx.conf in real time.

Dockerfile Boilerplate Scaffolder

Generate a production-ready Dockerfile for Node.js, Python, or Go with multi-stage builds and security best practices.

BIP39 Mnemonic Seed Phrase Generator

Generate 12 or 24-word cryptographic recovery phrases using window.crypto. 100% client-side, works offline on air-gapped computers.

Bcrypt Password Hasher and Salt Verifier

Generate bcrypt hashes, parse the embedded salt, verify passwords, and measure computation delays client-side.

Secure Random Password Fabricator

Generate strong strings completely locally using window.crypto. Live entropy readout, character set controls, and zero network calls.

SSH Key Generator Command Builder

Custom-tailor Ed25519, RSA, and ECDSA ssh-keygen parameters and copy the exact CLI command to your terminal.

GraphQL Schema to JSON Mock Generator

Paste your SDL schema and instantly generate realistic JSON mock API responses, client-side.

URL Query Parameter Parser

Paste any URL to instantly decode every key-value pair into a structured table. Export as JSON or CSV.

Hex Dump and Binary Stream Inspector

Parse any file down to raw bytes in a color-coded offset, hex, and ASCII table. Search magic bytes and export a full dump.

Markdown Table Grid Builder

Build pipe tables in a live spreadsheet editor and copy formatted GFM syntax instantly.

Text to Markdown Table Formatter

Paste raw data from Excel, CSV, or TSV and instantly convert it to a padded GFM pipe table syntax grid.

Vigenere Cipher Engine

Encrypt or decrypt text with the classic polyalphabetic Vigenere cipher. Live keyword alignment visualizer included.

Fluid Typography clamp() Generator

Calculate CSS clamp() values for smooth font scaling between viewport breakpoints with live preview.

Document & PDF

Combine multiple PDF files into one - all processed locally in your browser.

Extract specific pages from a PDF into a new file.

PDF to Word Converter

Extract and convert PDF text into an editable Word document.

Word to PDF Converter

Convert .docx files to polished, print-ready PDF documents.

PDF to JPG Converter

Turn each page of a PDF into a high-resolution image file.

JPG to PDF Converter

Compile a stack of images into a single PDF document.

Fix documents that were scanned upside down or sideways.

PDF Page Numbering

Stamp page numbers onto any PDF in your choice of position and style.

PDF Password Protector

Add a password to secure any unencrypted PDF document.

Data & File Conversion

CSV to JSON Converter

Turn spreadsheet CSV data into JSON format for web use.

JSON to CSV Converter

Convert JSON data arrays into downloadable CSV spreadsheets.

Excel to HTML Converter

Paste spreadsheet cells and get clean HTML table code back.

Random Name Picker

Randomize any list - perfect for giveaways, draws, classroom picks, and sports teams.

Barcode Generator

Create standard 1D barcodes (Code128, EAN-13, UPC) for products.

Password Strength Checker

See how long it would take a computer to crack your password.

Credit Card Validator

Verify a card number's structure with the Luhn algorithm - no data saved.

Social Media & Content

Twitter Character Counter

Check tweet length including link formatting rules (t.co shortening).

Hashtag Generator

Generate sets of 30 targeted hashtags based on a keyword.

YouTube Thumbnail Downloader

Input a YouTube URL and download the high-resolution thumbnail.

YouTube Title Analyzer

Check character length and clickability score of your video title.

Append Google Analytics UTM tracking parameters to any URL.

WhatsApp Link Generator

Create a click-to-chat link with a pre-filled WhatsApp message.

Browse and click to copy any emoji - categorized for easy finding.

YouTube Tag Generator

Build high-performing video tags by keyword and niche, with a 500-character counter.

TikTok Engagement Rate Calculator

Turn your views, likes, comments, shares, and saves into an engagement rate and creator tier.

Twitch Payout Estimator

Calculate your expected monthly streaming revenue from subscriptions, Bits cheered, and ad density.

Twitch Stream Revenue and Ad-Density Estimator

Map subscription tiers, Bits, tips, and ad density into a real monthly income breakdown with a live donut chart.

Social Media Image Resizer

Crop any photo to exact pixel dimensions for Instagram, X, Facebook, and LinkedIn instantly.

Reel Engagement Calculator

Compare views against likes, comments, shares, and saves for an instant TikTok or Reels audit score.

YouTube Video Tag Extractor and Optimizer

Generate semantic long-tail tag variations from any keyword, with a live 500-character counter and one-click copy.

Social Media Aspect Ratio Resizer

Visual framing studio - drag, zoom, and pan any image into exact crop frames for X, Instagram, YouTube, LinkedIn, and Facebook.

Instagram Clean Caption Spacer

Insert invisible characters that survive Instagram's formatting stripper, preserving your paragraph spacing and line breaks on post.

Link-in-Bio Generator

Build a free minimalist profile landing page, pick a theme, and download one portable HTML file you can host anywhere.

CTR Impact Predictor

Score any headline, YouTube title, email subject, or ad copy against psychology-driven emotional benchmarks in real time.

Social Handle Availability Checker

Type a username once and instantly build direct profile URLs for X, Instagram, TikTok, YouTube, GitHub, LinkedIn, Pinterest, Twitch, and Reddit.

Sponsorship Rate Evaluator

Calculate a fair-market sponsorship rate from your platform, average views, niche, and placement type. Instant CPM-based pricing with a negotiation range.

Affiliate Marketing Commission Estimator

Project your monthly affiliate commission, calculate your EPC (earnings per click), and compare percentage and flat-rate CPA programs.

Audio & Video

Video Player and Library

Browse and stream your personal & private video collection in one place.

Video to Audio MP3

Extract the audio track from any video file as an MP3.

Cut the start or end off an audio file right in your browser.

Online Video Cutter

Trim video files to the exact clip you need - no software required.

Turn any short video clip into a looping GIF animation.

Online Voice Recorder

Record audio through your browser microphone and save as MP3.

Online Screen Recorder

Record your screen directly from the browser - no software to install.

Tap the spacebar to the beat of any song to find its tempo.

Play any audio clip backward for a fun or creative effect.

Podcast Episode File Bitrate Estimator

Calculate multi-track WAV recording sizes and MP3 export sizes against your SD card and host limits.

Text to Morse Code Audio Synthesizer

Translate text to Morse code and play it back with accurate timing via the Web Audio API.

NATO Phonetic Alphabet Generator

Translate any text or call sign into the ICAO aviation radio spelling alphabet. Aviation numbers included.

Leetspeak Hex Obfuscator

Convert text into Classic 1337 leet substitution, ASCII hex encoding, or a Chaotic randomized variant.

Sound Pressure Level Distance Attenuation Calculator

Project how audio decays over distance using the inverse square law for point and line sources.

Entertainment & Fun

Word Unscrambler

Unscramble letters to find valid words - perfect for Scrabble & Wordle.

Anagram Puzzle Matrix Unscrambler

Isolate every sub-word and exact anagram from scrambled letters with Scrabble scoring and wildcard support.

Random Trivia Generator

Randomized trivia across dozens of categories - science, history, pop culture.

QR Code Generator

Turn any URL, Wi-Fi password, or text into a scannable QR code.

Virtual Dice Roller

Roll any combo - d4 through d100 - for tabletop RPGs and board games.

Character Name Generator

Generate names for characters in your stories.

Pet Name Generator

Generate names for pets - dogs, cats, parrots, reptiles, fish.

Baby Name Generator

Generate names for babies - English, Spanish, French, and more.

Business Name Generator

Generate names for businesses - insert a keyword, industry, vibe, or style.

Tournament Bracket Tree Layout Architect

Map competitive brackets across custom player counts with snake seeding and automatic bye round logic.

Random Choice Spinner

Spin a visual wheel to select items fairly from any custom list.

Online Coin Flipper

Animated heads or tails - let fate decide for you.

Random Number Generator

Pick random numbers in any range - for lotteries, games, or decisions.

Sudoku Generator

Generate and solve Sudoku puzzles at any difficulty level.

Secret Santa Name Match Assignment Engine

Distribute party assignments privately. Derangement shuffle, couple exclusions, click-to-reveal vault that auto-relocks in 10 seconds.

Quote Search Engine

Daily inspiration from history's greatest minds, randomized on demand.

ROT13 Caesar Cipher Matrix

Encode, decode, and brute-force Caesar ciphers with all 25 rotations at once.

Home & Life

Dynamic Vision Board Creator

Build a digital vision board with drag-and-drop images, affirmations, and countdown goal trackers, then launch a full-screen manifestation dashboard.

Soil Texture Triangle Classifier

Identify your USDA soil texture class from sand, silt, and clay percentages. Live ternary plot with drainage and water retention data.

Year Progress Tracker

Watch the year fill in real-time via SVG rings. Tracks calendar year, fiscal year, or business days only.

Stopwatch Split Log Exporter

Record precise lap and split times locally, then export your full session as a CSV file.

Paint Coverage Calculator

How many gallons of paint do you need to cover a room?

Flooring and Tile Calculator

Calculate exactly how much flooring or tile you need for any room.

Deck Material Estimator

Calculate lumber, screws, and concrete for your custom deck project.

Area Calculator

Calculate square footage of rooms, lots, or irregular shapes.

Gas Cost Calculator

Estimate total gas cost for any road trip based on MPG and gas prices.

Delivery Route Fuel Optimizer

Sort multi-stop delivery routes into the most fuel-efficient order using a TSP algorithm. See your exact fuel savings instantly.

Electricity Usage Calculator

Estimate your appliances' electricity costs per day, month, and year.

Moving Cost Calculator

Estimate the cost of your move based on distance and home size.

Pet Age Calculator

Convert your pet's age to human years - it's not just ×7 for dogs!

Plant Watering Schedule

Build a custom watering schedule for all your houseplants.

Home Repair Cost Estimator

Estimate the cost of a home repair.

HVAC Sizing Calculator

Estimate the BTUs needed to cool or heat a specific room.

Wallpaper Calculator

Find out exactly how many rolls of wallpaper you need, including waste.

Wallpaper Coverage Tool

Calculate wallpaper rolls with full pattern repeat, drop match, and waste accounting.

Concrete and Masonry Calculator

Estimate bags of concrete for slabs, footings, and columns, plus blocks, bricks, and mortar for walls.

Brick and Block Wall Calculator

Estimate bricks or CMU blocks, mortar bags, and masonry sand for any wall size.

Retaining Wall Estimator

Calculate blocks, capstones, gravel base, and drain pipe for a structural retaining wall.

Concrete Slab and Footing Calculator

Calculate cubic yards and the exact bag count for any slab, footing, or column pour.

Gravel and Aggregate Calculator

Estimate tons and cubic yards of gravel, crushed stone, or pea gravel for driveways and paths.

Mortar and Grout Mixer Estimator

Calculate the precise water needed for thinset, masonry mortar, sanded grout, and unsanded grout - in gallons, quarts, and liters.

Asphalt Driveway Estimator

Calculate hot mix asphalt tonnage and crushed stone base tonnage for any paving project.

Mulch and Topsoil Calculator

Estimate cubic yards for bulk delivery or bag count for any landscaping bed shape.

Lumber Stud Finder and Framing Calculator

Estimate wood studs, top and bottom plate boards, and linear footage for any wall framing project.

Drywall and Sheetrock Estimator

Calculate drywall sheets, joint compound buckets, tape rolls, and screws for any room.

Paver Patio Calculator

Estimate interlocking pavers, bedding sand tonnage, and polymeric joint sand bags for your patio project.

Roof Shingle Estimator

Calculate roofing squares, shingle bundles, underlayment rolls, and nails for any roof pitch and size.

Siding and Trim Estimator

Calculate cartons or boards needed for vinyl, fiber cement, or cedar wood lap siding with gable and opening deductions.

Stair Stringer Calculator

Compute exact rise, run, throat depth, stringer length, and dropped bottom cut for stair stringers.

Insulation R-Value Calculator

Calculate bags or rolls of insulation needed to hit your climate zone target R-value.

Drop Ceiling Grid Estimator

Calculate main runners, cross tees, acoustic tiles, wall molding, and hanger wire for any suspended ceiling.

Fence Material Estimator

Calculate posts, rails, pickets, and concrete bags for any property fence project.

Decking and Lumber Material Estimator

Calculate deck boards, joists, joist hangers, and structural posts for any deck size.

Pipe Friction Loss Calculator

Calculate plumbing pressure drop by pipe length, flow rate, material, and diameter using the Hazen-Williams equation.

Circuit Load Estimator

Check total amperage draw on a household circuit breaker to prevent overloads.

Sump Pump Sizing Calculator

Calculate required GPH capacity, Total Dynamic Head, and minimum horsepower for your sump pump.

Wire Size and Voltage Drop Calculator

Find the correct copper or aluminum AWG wire gauge for any run based on amps, distance, and voltage.

Water Heater Sizing Calculator

Get the right tank FHR or tankless GPM for your household based on peak demand and climate.

Rainwater Catchment Volume Estimator

Compute harvestable water volume from any roof footprint using rainfall depth and roofing material runoff coefficients.

Compost Carbon-to-Nitrogen Ratio Calculator

Build your compost recipe, mix greens and browns, and instantly see your pile's C:N ratio against the optimal 25:1 to 30:1 range.

Carbon Footprint Commute Emission Tool

Model your daily travel CO2 output across gasoline, diesel, hybrid, EV, and public transit. Compare against national averages and see your full annual environmental impact.

Pomodoro Cycle Work Session Customizer

Configure focus blocks and break periods into structured productivity loops. Clock-accurate timer with SVG progress ring, cycle tracker, and saved routines.

Air Exchange Rate Volume Vent Calculator

Balance interior air cycles in any room. Enter dimensions and HVAC airflow to instantly compute ACH and compare against ventilation standards.

Solar Panel Array Output Calculator

Estimate daily, monthly, and yearly kilowatt-hour generation based on panel count, wattage, roof angle, and sun hours.

Lumen to Watt LED Converter

Find the exact LED wattage to replace any incandescent, halogen, or CFL bulb and see your annual savings.

Recipe Scaler and Multiplier

Adjust any recipe to any serving size. Scale ingredients up or down instantly with clean culinary fractions.

Coffee Ratio Calculator

Dial in your coffee-to-water ratio for any brew method and see your exact dose, pour water, and estimated liquid yield.

Baker's Percentage and Dough Hydration Calculator

Adjust bread formulas relative to total flour mass. Calculate true sourdough hydration and scale recipes to any batch size.

Ingredient Volume to Weight Converter

Convert cups, tablespoons, and ml to grams or ounces using real ingredient density data. Supports fractions.

Passport Validity Buffer Calculator

Check if your passport meets the 6-month rule, Schengen 3-month requirement, or duration-of-stay standard before your trip.

Ambient Focus Dashboard and Kiosk Simulator 2.0

Build a full-screen productivity display with drag-and-drop clock, calendar, weather, countdown, text, image, and news ticker widgets. Launch into immersive kiosk mode instantly.

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