Browse every tool on UtilityLab — 220+ free, private, browser-based utilities.
This page is a complete directory of every tool available on UtilityLab. Whether you need a mortgage calculator, a JSON formatter, an image compressor, or a unit converter, you will find it here. Each tool runs entirely in your browser — no uploads, no sign-ups, no data collection.
Bookmark this page for quick access to all our tools. Use the categories below to find exactly what you need. Want to embed a tool on your own website? Visit our Widgets page.
AI Tools (6 Tools)
AI-powered tools that run entirely in your browser using Transformers.js. No data leaves your device.
Construction Calculators (5 Tools)
Estimate materials for concrete, roofing, brick, drywall, and gravel. Built for contractors and DIYers.
Finance Calculators (48 Tools)
Plan loans, mortgages, investments, and budgets with our free financial calculators.
Health & Fitness Calculators (23 Tools)
Track your health and fitness with tools for BMI, calories, body fat, and more.
Text & Developer Tools (67 Tools)
Format, convert, and clean up text with tools for JSON, CSV, HTML, SQL, and more.
- Word Counter — count words and characters instantly
- Character Counter — count characters with and without spaces
- Percentage Calculator — find what percentage one number is of another
- Age Calculator — calculate your exact age from birth date
- Date Difference Calculator — find the number of days between two dates
- Random Number Generator — generate random numbers within a range
- Password Generator — create strong random passwords
- Password Strength Checker — check how strong your password is
- QR Code Generator — create QR codes from text or URLs
- QR Code Scanner — scan QR codes from images
- Case Converter — convert text to uppercase, lowercase, or title case
- URL Encoder / Decoder — encode or decode URLs instantly
- Base64 Encoder / Decoder — encode or decode Base64 text
- Color Picker — pick colors and get hex codes
- Color Contrast Checker — check WCAG contrast compliance
- Color Palette Generator — extract a color palette from an image
- Email Extractor — extract email addresses from text
- Email Validator — check if an email address is properly formatted
- Disposable Email Checker — check if an email domain is temporary
- Email Obfuscator — protect email from spam bots
- Email Domain Extractor — extract unique domains from emails
- YouTube Tags Extractor — extract tags from YouTube videos
- JSON Merger — merge two JSON objects into one
- JSON Formatter — format and validate JSON
- JSON to CSV — convert JSON arrays to CSV format
- YAML to JSON — convert YAML to JSON
- CSV to JSON — convert CSV to JSON array
- XML Formatter — format and validate XML
- Lorem Ipsum Generator — generate placeholder text for designs
- Text Reverser — reverse characters, words, or lines
- Text to Slug — convert text to clean URL slugs
- Remove Line Breaks — remove line breaks from text
- Word Frequency Counter — count how often words appear in text
- Text Sorter — sort lines alphabetically or numerically
- Long Division Calculator — solve long division problems step by step
- Random Name Picker — pick a random name from a list
- Regex Tester — test regular expressions against text
- Cron Expression Generator — generate cron expressions easily
- Cron Expression Explainer — understand what a cron expression means
- SQL Formatter — format and beautify SQL queries
- CSS Minifier — minify CSS to reduce file size
- HTML Minifier — minify HTML to reduce file size
- Markdown to HTML — convert Markdown to HTML
- HTML Encoder / Decoder — encode or decode HTML entities
- Text Diff Checker — compare two texts and find differences
- Whitespace Remover — remove extra spaces and line breaks
- Find and Replace — find and replace text instantly
- Text to JSON — convert text lines to JSON array
- JSON to Text — convert JSON array to plain text
- Unix Timestamp Converter — convert Unix timestamps to dates
- Text Similarity Checker — compare two texts and see similarity
- Word Count to Pages Converter — convert words to page count
- Reading Time Calculator — find how long it takes to read text
- Text to Handwriting Converter — convert text to handwriting-style image
- Grammar & Spell Checker — check text for grammar and spelling errors
- Code Screenshot Generator — turn code into a beautiful image
- Number Base Converter — convert between binary, octal, decimal, hex
- Screen Resolution Checker — check your screen resolution
- IP Lookup — find your public IP address and location
- What Is My IP — find your public IP address
- Hash Generator — generate MD5, SHA-1, SHA-256, SHA-512 hashes
- JWT Decoder — decode JSON Web Tokens
- UUID Generator — generate random v4 UUIDs
- CSS Gradient Generator — create CSS gradients visually
- Custom Cheat Sheet Generator — build your own cheat sheet PDF
- Resume Builder — create a professional resume PDF
- CV Maker — build a professional CV and download as PDF
Image & File Tools (21 Tools)
Compress images, remove backgrounds, convert HEIC to JPG, merge PDFs, split PDFs, extract text from images, and edit screenshots — all in your browser.
Converters (14 Tools)
Convert between units of length, weight, temperature, speed, area, volume, time, data storage, fuel consumption, pressure, and shoe sizes.
- Unit Converter — convert length, weight, and temperature
- Length Converter — convert meters, feet, miles, kilometers
- Weight Converter — convert kilograms, pounds, ounces, grams
- Temperature Converter — convert Celsius, Fahrenheit, Kelvin
- Speed Converter — convert mph, km/h, m/s, knots
- Area Converter — convert square meters, square feet, acres
- Volume Converter — convert liters, gallons, cups, milliliters
- Time Converter — convert seconds, minutes, hours, days
- Data Storage Converter — convert bytes, KB, MB, GB, TB
- Fuel Consumption Converter — convert MPG, L/100km, km/L
- Pressure Converter — convert PSI, bar, kPa, atm
- Time Zone Converter — convert time between time zones
- World Clock — check current time anywhere in the world
- Shoe Size Converter — convert shoe sizes between US, UK, EU, CM
Specialty Tools (14 Tools)
Unique tools for specific tasks that do not fit into other categories.
Why Use UtilityLab?
UtilityLab offers over 220 free tools that run entirely in your browser. No sign-ups, no uploads, no data collection. Whether you need a quick calculation or a complex conversion, our tools are designed to be fast, private, and free.
Want to embed a tool on your own website? Visit our Widgets page to get the embed code for any tool. It is free and requires no sign-up.
Frequently Asked Questions
Are all these tools free?
Yes. Every tool in this directory is free to use. We may display ads in the future to cover hosting costs, but the tools themselves will always be free.
Do you store my data?
No. All processing happens in your browser. We do not store the numbers you enter, the images you process, or the text you handle.
Can I use these tools on mobile?
Yes. All tools are mobile-friendly and work on phones, tablets, and desktops.
Can I embed UtilityLab tools on my website?
Yes. Visit our Widgets page to get the embed code for any tool. It is free and requires no sign-up.