DIRECTORY
Every calculator, converter, generator and utility on MultiTool. Search by name or filter by category — everything is free, works instantly and runs in your browser.
129 TOOLS
FINANCE
Quickly calculate what percentage of a number is. Free, instant results.
FINANCE
Calculate monthly loan payments (EMI), total interest and amortization schedule.
FINANCE
Calculate final sale price and total savings from any discount percentage.
FINANCE
Calculate tip amount, total bill and split evenly between people.
FINANCE
Convert between hourly, weekly, monthly and annual salary quickly.
FINANCE
Calculate future value and interest earned with compound growth and optional monthly deposits.
FINANCE
Add or remove VAT, GST or sales tax from a price. Net, tax and gross in one step.
FINANCE
Estimate your monthly payment, total interest and total cost for any home price, down payment, rate and term.
FINANCE
Calculate fuel consumption (km/L or MPG), trip cost and fuel needed for any journey, in metric or imperial units.
HEALTH & FITNESS
Calculate your Body Mass Index (BMI) instantly and see your weight category.
HEALTH & FITNESS
Calculate your exact age in years, months, days, hours and minutes.
HEALTH & FITNESS
Estimate your baby's due date based on your last menstrual period.
HEALTH & FITNESS
Calculate your daily calorie needs (TDEE) and basal metabolic rate (BMR).
HEALTH & FITNESS
Find your ideal body weight range based on height, age and gender.
MATH & EDUCATION
Add, subtract, multiply and divide fractions with step-by-step results.
MATH & EDUCATION
Calculate your Grade Point Average (GPA) from grades and credit hours.
MATH & EDUCATION
Calculate the percentage change between two numbers (increase or decrease).
MATH & EDUCATION
Simplify ratios, compare and solve proportions instantly.
MATH & EDUCATION
Calculate area, perimeter and volume for common geometric shapes.
MATH & EDUCATION
Full scientific calculator: trigonometry, logarithms, powers, roots, π and e. Keyboard support and history.
MATH & EDUCATION
Compute mean, median, mode, range, variance and standard deviation from any list of numbers.
MATH & EDUCATION
Simplify any width and height to its aspect ratio (16:9, 4:3, 1:1) and find the missing dimension for a target ratio.
CONVERTERS
Convert between length, weight, volume and other common units.
CONVERTERS
Convert temperatures between Celsius, Fahrenheit and Kelvin.
CONVERTERS
Convert times between different time zones around the world.
CONVERTERS
Convert numbers between binary, decimal, hexadecimal and octal.
CONVERTERS
Convert Roman numerals to numbers and numbers to Roman numerals.
CONVERTERS
Convert between USD, EUR, GBP, BRL, INR and other major currencies with live reference rates.
CONVERTERS
Convert shoe sizes between US, UK, EU and centimeters for men and women.
CONVERTERS
Convert length and distance units instantly: cm to inches, meters to feet, km to miles — see all units at once.
CONVERTERS
Convert weight units instantly: kg to lbs, pounds to kg, grams to ounces, stones and tons — all units at once.
DATE & TIME
Add or subtract days, weeks, months or years from any date.
DATE & TIME
Create a live countdown to any date or event of your choice.
DATE & TIME
Calculate the number of business days between two dates.
DATE & TIME
Convert Unix timestamps to human-readable dates and vice versa.
DATE & TIME
Count how many days remain until a specific future date.
DATE & TIME
Precise online stopwatch with laps, countdown timer and Pomodoro timer with sound alerts.
TEXT TOOLS
Count words, characters, sentences and paragraphs in your text.
TEXT TOOLS
Convert text to UPPERCASE, lowercase, Title Case, camelCase and more.
TEXT TOOLS
Generate Lorem Ipsum placeholder text — words, sentences or paragraphs.
TEXT TOOLS
Compare two texts side by side and highlight the differences.
TEXT TOOLS
Generate clean, URL-friendly slugs from any text or title.
TEXT TOOLS
Measure the Flesch Reading Ease score and Flesch-Kincaid grade level of any text, with word, sentence and syllable counts.
TEXT TOOLS
Check how often a keyword appears in your text as a percentage of all words.
TEXT TOOLS
Convert your text into fancy unicode styles: bold, italic, cursive, monospace and upside down.
TEXT TOOLS
Find and copy emojis instantly: smileys, hearts, animals, food and symbols. Search and one-click copy.
TEXT TOOLS
Generate 3-30 relevant hashtags from any topic: phrase tags, word tags and trending variants for social media.
TEXT TOOLS
Translate text to Morse code and back, with sound playback of the classic alphabet.
TEXT TOOLS
Encrypt any text with AES-256-GCM using a passphrase, and decrypt it back. 100% in your browser.
TEXT TOOLS
Convert any number to English or Portuguese words instantly — perfect for checks, invoices and contracts.
TEXT TOOLS
Turn any text into spoken audio right in your browser: choose a voice, speed and pitch. Works offline, no sign-up.
TEXT TOOLS
Measure your typing speed in WPM and accuracy with 15, 30 or 60 second tests and live feedback.
DEVELOPER TOOLS
Format, validate and beautify JSON data with syntax highlighting.
DEVELOPER TOOLS
Encode text to Base64 or decode Base64 back to plain text.
DEVELOPER TOOLS
Encode or decode URLs and query strings (percent-encoding).
DEVELOPER TOOLS
Generate random UUIDs (v4) — one or bulk. Copy with one click.
DEVELOPER TOOLS
Generate MD5, SHA-1, SHA-256 and SHA-512 hashes from any text.
DEVELOPER TOOLS
Check how strong your password is: score from very weak to strong, entropy estimate and 6 security checks, 100% local.
DEVELOPER TOOLS
Test JavaScript regular expressions with live matches, capture groups and flags.
DEVELOPER TOOLS
Decode JSON Web Tokens (JWT) instantly: read header, payload and claims as readable JSON. Runs in your browser.
DEVELOPER TOOLS
Convert CSV to JSON and JSON to CSV instantly. Custom delimiters, header-row detection, copy or download.
DEVELOPER TOOLS
Generate realistic fake data: names, emails, phones, addresses, companies, dates, UUIDs and SSNs. Export as CSV.
DEVELOPER TOOLS
Turn any long link into a short, shareable URL in seconds. Copy with one click and session history.
DEVELOPER TOOLS
Build 5-field cron expressions visually with presets and a human-readable description. Compatible with Linux, AWS and GitHub Actions.
DEVELOPER TOOLS
Convert Markdown to clean HTML instantly with a live preview. Headings, lists, links, code blocks and more.
DEVELOPER TOOLS
Create beautiful CSS gradients visually: pick colors, angle and type, then copy the ready-to-use code.
DEVELOPER TOOLS
Convert pixels to rem and rem to pixels with any root font size, plus a quick reference table for common sizes.
DEVELOPER TOOLS
Generate SEO meta tags (title, description, Open Graph, Twitter) with a live Google search preview.
DEVELOPER TOOLS
Format and validate XML online — beautify with 2 or 4 space indentation, minify, and catch syntax errors instantly.
DEVELOPER TOOLS
Format and validate YAML online with consistent indentation and instant error messages with line numbers.
DEVELOPER TOOLS
Format SQL queries online with proper indentation and keyword casing. Supports PostgreSQL, MySQL, SQLite, T-SQL and more.
DEVELOPER TOOLS
Convert JSON to YAML and YAML to JSON online, both directions, with instant validation and clear error messages.
GENERATORS & FUN
Generate strong, secure random passwords with customizable options.
GENERATORS & FUN
Generate random numbers within any range you specify.
GENERATORS & FUN
Create QR codes for any text, URL, phone or Wi-Fi credentials.
GENERATORS & FUN
Convert colors between HEX, RGB, HSL and generate palettes.
GENERATORS & FUN
Roll virtual dice of any size — D4, D6, D8, D10, D12, D20 and more.
GENERATORS & FUN
Spin the wheel to pick a random winner from your list. Add options, spin with animation, get a fair result.
GENERATORS & FUN
Draw random winners from a pasted or uploaded list. Built for Instagram giveaways and raffles.
GENERATORS & FUN
Discover your love compatibility percentage with a fun, viral name-based calculation.
GENERATORS & FUN
Flip a virtual coin, get a Yes/No answer or ask the Magic 8-Ball. Instant decisions with sounds.
GENERATORS & FUN
Generate cool, unique usernames for games, social media and more, with style and leet options.
GENERATORS & FUN
Generate random words instantly for writing prompts, games, passwords and inspiration.
GENERATORS & FUN
Generate creative names for pets (dogs, cats, birds) and businesses by style and keyword. One click to copy.
IMAGE TOOLS
Reduce the file size of JPEG, PNG and WebP images with quality control and resize. Runs entirely in your browser.
IMAGE TOOLS
Convert images between JPG, PNG and WebP formats instantly in your browser.
IMAGE TOOLS
Convert any image to a Base64 data URI for embedding in HTML, CSS or JSON.
IMAGE TOOLS
Create a favicon from text, an emoji or your own image, and download every size you need: 16, 32, 48, 180 and 512 px.
IMAGE TOOLS
Crop any image online with free, 1:1, 4:3, 16:9 and other preset ratios. Drag, zoom and download as PNG.
IMAGE TOOLS
Resize images to exact pixel dimensions online. Keep aspect ratio or set custom width and height — private, no upload.
IMAGE TOOLS
Convert HEIC and HEIF photos (iPhone default) to universal JPG online. Choose quality, download instantly — no upload.
IMAGE TOOLS
Convert WebP images to JPG online — one file or a whole batch with ZIP download. Free, private, no watermark.
IMAGE TOOLS
Convert PNG images to WebP and cut file size by 25%+ with the quality you choose. Batch + ZIP download, fully private.
IMAGE TOOLS
See the EXIF metadata hidden in photos (camera, date, GPS) and download a clean copy with all metadata removed.
PDF TOOLS
Combine multiple PDF files into one, keeping the page order you choose. Free, private, in your browser.
PDF TOOLS
Extract specific pages or ranges from a PDF, split into single pages or chunks of N — as PDF or ZIP.
PDF TOOLS
Turn JPG, PNG and WebP images into a single PDF document — reorder, fit and download.
PDF TOOLS
Encrypt a PDF with a password (AES-256) and optionally restrict printing and copying.
PDF TOOLS
Rotate PDF pages 90, 180 or 270 degrees — all pages or only selected ones.
PDF TOOLS
Draw your signature with the mouse or finger and place it on any page of a PDF.
PDF TOOLS
Remove the password from a PDF you own. Type the password once and download the unlocked file.
PDF TOOLS
Reduce the file size of a PDF by re-encoding pages as optimized images. Quality and resolution controls.
PDF TOOLS
Add a text or image watermark to every page of a PDF, with position, rotation and opacity controls.
PDF TOOLS
Reorder pages with arrows and remove pages you don't need, then download the organized PDF.
PDF TOOLS
Add page numbers to a PDF with position, starting number, size and prefix options.
PDF TOOLS
View and edit PDF metadata: title, author, subject and keywords.
PDF TOOLS
Convert every page of a PDF to JPG or PNG images, downloaded as a ZIP.
PDF TOOLS
Try to recover and repair damaged or unreadable PDF files.
PDF TOOLS
Delete pages from a PDF online — select pages to remove or keep and download instantly. Private, free, no upload.
AI TOOLS
Generate professional AI prompts for marketing, coding, writing, design and education. Ready-to-use templates with customizable variables.
AI TOOLS
Count tokens for GPT-4, Claude, Gemini and other AI models. Estimate API costs before sending your prompt.
AI TOOLS
Calculate monthly cost of using AI APIs like GPT-4, Claude and Gemini based on your usage volume.
AI TOOLS
Compare the best AI coding assistants: GitHub Copilot, Cursor, Codeium, Windsurf and more. Features, pricing and free plans.
AI TOOLS
Curated directory of the best free AI tools. Filter by category, no sign-up required tools, open source options.
AI TOOLS
Compare the top LLMs side by side: GPT, Claude, Gemini, Llama, DeepSeek — context windows, output limits and reference API prices.
AI TOOLS
Assemble professional system prompts from roles, tones, constraints and output formats. Copy with one click.
GAMES
The classic snake game with neon visuals. Eat, grow and avoid the walls.
GAMES
Merge tiles to reach 2048 in the addictive number puzzle game.
GAMES
Flip cards and find all the matching pairs in this classic memory game.
GAMES
Untangle the snakes: click a snake to slide it forward and clear the board. Level-based logic puzzle.
GAMES
Play tic-tac-toe against the computer or a friend. Three in a row wins.
GAMES
Watch the glowing sequence and repeat it. How long a chain can you remember?
GAMES
Clear the grid without hitting a mine. The classic logic puzzle, refreshed.
GAMES
A falling-blocks puzzle in the tradition of the 80s classic. Stack lines and clear them.
GAMES
Jump over obstacles and run as far as you can in this endless desert dash.
GAMES
Guess the hidden word in six tries. A daily brain teaser for word lovers.
GAMES
The arcade paddle classic, pixel-styled. Beat the computer in retro rally.
GAMES
Bounce the ball and smash every brick. The breakout-style arcade favorite.
GAMES
Drop discs and connect four in a row. Play against the computer.
Yes — every tool on MultiTool is free, with no sign-up, no watermark and no usage limits. The project is supported by unobtrusive ads.
129 across 12 categories: PDF, images, developer utilities, math and finance calculators, health, converters, generators, AI helpers and classic browser games.
Almost every tool processes files locally in your browser — they never leave your device. The only exceptions (URL shortening and live exchange rates) are documented in our Privacy Policy.
Yes. Every tool is responsive and works on any modern browser — desktop, tablet or phone. Nothing to install.