Practical Web Tools packs hundreds of free, browser-based tools that run client-side (your files don’t get uploaded to a server). No accounts, no opaywalls, no ads cluttering the screen. I went through the entire sitemap and organized everything below so you can actually find what you need.

🤖 AI Tools

• AI Chat — Chat with multiple Local AI models (model list)
• Text to Speech — Convert text to audio

📄 PDF Tools

• Edit PDF Text
• Merge PDF
• Split PDF
• Sign PDF
• Redact PDF
• Markdown to PDF

🔄 File Converters

PDF Conversions

• PDF → Word · PDF → Excel · PDF → PowerPoint · PDF → Image · PDF → Text · PDF → HTML · PDF → EPUB
• Word → PDF · TXT → PDF

Image Conversions

• JPG → PNG · JPG → WebP · JPG → HEIC
• PNG → JPG · PNG → WebP · PNG → ICO
• WebP → JPG · WebP → PNG
• GIF → PNG · Image → SVG · Image → TIFF
• HEIC → JPG

Audio Conversions

• MP3 → WAV · WAV → MP3 · M4A → MP3
• FLAC → MP3 · OGG → MP3 · AAC → MP3

More Converters

• Video Converter · Document Converter · Ebook Converter · Archive Converter · OCR

🖼️ Image & File Tools

• Image Tools Hub
• File Tools Hub
• Compress Files
• Decompress Files

🎵 Audio Tools

• Instrument Tuner
• Tone Generator

✏️ Text & Markup Tools

• Word Counter · Character Counter
• Markdown → HTML · HTML → Markdown
• Hash Generator

💻 Developer Tools

• Code Tools
• Diff / Compare
• Data Tools
• Diagram Tools

💰 Finance Calculators

Loans & Mortgages

Mortgage · Loan · Auto Loan · Personal Loan · Student Loan · Business Loan · FHA Loan · VA Mortgage · Boat Loan · Refinance · Mortgage Payoff · Amortization · Payment · Repayment · EMI

Interest & Investments

Compound Interest · Simple Interest · APR · Interest Rate · Effective Interest Rate · Equivalent Interest Rate · Investment · ROI · IRR · NPV · CAGR · Bond · Average Return · Present Value · Future Value · Payback Period · Rule of 72

Retirement

Retirement · 401k · Roth IRA · IRA · RMD · Pension · Annuity · Social Security · Coast FIRE · Future Value Annuity · Present Value Annuity

Debt

Credit Card · Credit Card Payoff · Debt Payoff · Debt Consolidation · Debt Ratio

Tax & Income

Tax · Sales Tax · VAT · Self-Employment Tax · Estate Tax · Take-Home Pay · Salary · Gross Pay

Real Estate

House Affordability · Down Payment · Rent vs Buy · Rental Property ROI · House Hacking · Rent · Real Estate

Business & Everyday

Margin · Markup · Profit · Profit Margin · Commission · Discount · Tip · Budget · Currency · Inflation · Depreciation · Cash Back · Savings · CD · Emergency Fund · Fee Analyzer · Time Card · SaaS LTV/CAC · Impermanent Loss · Auto Lease · Lease · Bid-Ask Spread

Financial Ratios

Liquidity Ratios · Operations Ratios · Profitability Ratios · Stock Ratios

Budgeting

Budget Tool

🏥 Health & Fitness Calculators

Body Composition

BMI · Body Fat · Ideal Weight · Healthy Weight · Lean Body Mass · Body Surface Area · Body Type · Army Body Fat

Nutrition

Calorie · BMR · TDEE · Macro · Protein · Carbohydrate · Fat Intake · Calories Burned

Fitness

Pace · One Rep Max · Target Heart Rate

Women’s Health

Pregnancy · Due Date · Ovulation · Period · Conception · Pregnancy Weight Gain

Other Health

BAC · GFR

📐 Math Calculators

Basic & Scientific

Basic · Scientific · Graphing · Percentage · Fraction · Exponent · Log · Root · Big Number · Rounding · Percent Error · Scientific Notation

Number Theory

GCF · LCM · Factor · Prime Factorization · Common Factor · Long Division · Number Sequence · Roman Numeral Converter · Random Number Generator

Algebra & Calculus

Equation Solver · Systems of Equations · Quadratic Formula · Factoring · Derivative · Integral · Limit · Linear Regression

Geometry & Trigonometry

Triangle · Right Triangle · Circle · Area · Volume · Surface Area · Distance · Slope · Pythagorean Theorem · Sine · Cosine · Tangent · Trigonometry

Statistics & Probability

Average · Standard Deviation · Mean/Median/Mode · Statistics · Probability · Sample Size · Z-Score · Confidence Interval · P-Value · Permutation · Ratio · Matrix · Half-Life · Binary · Hex

🔬 Science Calculators

Physics

Force · Velocity · Acceleration · Momentum · Kinetic Energy · Potential Energy · Gravitational PE · Elastic PE · Work · Pressure · Density · Wavelength · Friction · Impulse · Displacement · Weight · Ideal Gas · Hooke’s Law · E=mc²

Chemistry

Molecular Weight

🎲 Gambling & Betting Calculators

Sports Betting

Odds Converter · Parlay · Arbitrage · Expected Value · Kelly Criterion · Hedge · Implied Probability · Hold/Vig

Poker

Pot Odds · Poker Equity · Poker Outs · Poker EV · Hand Range · ICM · Texas Hold’em Odds · Bankroll Requirements

Blackjack

Basic Strategy · Strategy Chart · House Edge · Card Counting

Casino Games

Roulette Odds · Roulette Payout · Craps Odds · Baccarat Odds · Video Poker Odds

Lottery

Lottery Odds · Powerball Odds · Mega Millions · Annuity vs Lump Sum

🕐 Time & Date

Age Calculator · Date Calculator · Time Calculator · Hours Calculator · Time Zone · Day Counter · Day of Week · Time Duration · Countdown Timer · Timezone Converter · Work Hours · Sleep Calculator

🎲 Random Generators

Coin Flip · Dice Roller · Number Generator · Name Picker · Decision Maker · Card Drawer · Bingo Caller · Color Generator · Lottery Generator · Password Generator · Quote Generator · Shuffle List

🏗️ Construction & Home

Concrete · Square Footage · Roofing · Tile · Gravel · Mulch · Stair · Cubic Feet · Cubic Yards · Tank Volume

⚡ Electrical & Engineering

Electricity · Ohm’s Law · Voltage Drop · Resistor · BTU · IP Subnet · Bandwidth · Horsepower

🌡️ Weather & Auto

Heat Index · Wind Chill · Dew Point · Fuel Cost · Gas Mileage · Mileage · Tire Size · Speed

🔄 Unit Converters

Area · Data Storage · Length · Pressure · Speed · Temperature · Time · Volume · Weight · Feet & Inches · Shoe Size

🎓 Education & Everyday

GPA · Grade · College Cost · Height · Bra Size · Density · Mass · Molarity · Molecular Weight · Password Generator · Golf Handicap · Dice Roller · Tip · Time Card

Everything runs in-browser. No sign-ups, no data collection. Bookmark it and forget you ever needed 15 different websites for this stuff.

Site: practicalwebtools.com