Smart Tools for the
Modern Web
A curated collection of high-performance, privacy-first utility tools designed to speed up your workflow. 100% free, no tracking, and open source.
Word Counter
Count words, sentences, and paragraphs in your text instantly.
Character Counter
Count characters with and without spaces in any text.
Case Converter
Convert text to uppercase, lowercase, title case, and more.
Remove Extra Spaces
Clean up text by removing extra whitespace and blank lines.
Text Reverser
Reverse any text, words, or individual characters.
Palindrome Checker
Check if a word or phrase reads the same forwards and backwards.
JSON Formatter & Validator
Format, validate, and beautify your JSON data.
Lorem Ipsum Generator
Generate placeholder Lorem Ipsum text for design mockups.
Text to Slug Converter
Convert text into URL-friendly slugs instantly.
Duplicate Line Remover
Remove duplicate lines from text while preserving order.
Binary Converter
Convert text to binary and binary back to plain text.
Morse Code Converter
Encode and decode Morse code messages instantly.
List Sorter
Sort your lists alphabetically, numerically, or in reverse.
Markdown Previewer
Write Markdown and see the rendered HTML preview instantly.
Text Diff Checker
Compare two blocks of text and see the differences side-by-side.
CSV to JSON Converter
Convert CSV data into clean, structured JSON objects.
JSON to CSV Converter
Convert JSON arrays into flat CSV files for spreadsheets.
YAML to JSON Converter
Switch between YAML and JSON configuration formats easily.
Text to NATO Phonetic
Convert text into the NATO phonetic alphabet (Alpha, Bravo...).
Sentiment Analyzer
Analyze the tone of your text (Positive, Negative, Neutral).
ROT13 Encoder/Decoder
Encode or decode text using the ROT13 substitution cipher.
Zalgo Text Generator
Generate creepy, glitchy Zalgo text for social media.
Upside Down Text
Flip your text upside down instantly.
Text to Speech
Convert text into spoken audio using browser voices.
Email Extractor
Extract all email addresses from a block of text instantly.
Basic Calculator
A simple, clean calculator for everyday arithmetic.
Percentage Calculator
Calculate percentages, percentage changes, and more.
Age Calculator
Calculate your exact age in years, months, and days.
BMI Calculator
Calculate your Body Mass Index and health category.
Discount Calculator
Calculate discount amounts and final prices instantly.
Loan EMI Calculator
Calculate monthly EMI for any loan with detailed breakdown.
Scientific Calculator
Advanced calculator with trigonometric and scientific functions.
Time Duration Calculator
Calculate the duration between two dates or times.
Tip Calculator
Calculate tips and split the bill easily among friends.
Compound Interest Calculator
Calculate how your savings grow over time with compound interest.
BMR Calculator
Calculate your Basal Metabolic Rate and daily calorie needs.
Sales Tax Calculator
Calculate sales tax, total price, and pre-tax amounts.
Savings Goal Calculator
Plan your savings to reach a specific financial goal.
Fuel Cost Calculator
Calculate trip fuel costs based on distance and MPG.
GPA Calculator
Calculate your semester GPA using letter grades and credits.
CGPA Calculator
Calculate your Cumulative GPA (CGPA) based on semester GPAs.
Auto Loan Calculator
Calculate monthly car payments and total interest.
Mortgage Payoff Calculator
See how extra payments can shorten your mortgage.
Unix Timestamp Converter
Convert Unix timestamps to human dates and vice versa.
Base Converter
Convert numbers between Binary, Decimal, Hex, and Octal.
Aspect Ratio Calculator
Calculate image and video dimensions for any aspect ratio.
Date Difference Calculator
Find the exact time difference between two dates.
Inflation Calculator
Estimate the value of money over time due to inflation.
Password Generator
Generate strong, secure passwords with custom options.
Password Strength
Check how strong your password is and its estimated crack time.
Random Number Generator
Generate random numbers within a specified range.
Random Name Picker
Pick random names or items from a list for raffles and decisions.
UUID Generator
Generate universally unique identifiers (UUID v4) instantly.
QR Code Generator
Generate QR codes for URLs, text, or any data.
Color Palette Generator
Generate beautiful, harmonious color palettes.
SHA-256 Hash Generator
Generate secure SHA-256 hashes for any text string.
MD5 Hash Generator
Generate MD5 hashes for text quickly.
Coin Flip & Dice Roller
Flip a coin or roll dice for quick decisions.
Random String Generator
Generate random alphanumeric strings with custom length.
Base64 Encode/Decode
Encode text to Base64 or decode Base64 to plain text.
URL Encoder/Decoder
Encode or decode URL components safely.
HTML Minifier
Minify HTML by removing whitespace and comments.
CSS Minifier
Minify CSS by removing whitespace and comments.
JavaScript Minifier
Minify JavaScript by removing whitespace and comments.
Gradient Generator
Create beautiful CSS gradients with a visual editor.
Box Shadow Generator
Generate CSS box-shadow with a live visual preview.
CSS Border Radius Generator
Generate CSS border-radius with a visual shape editor.
Glassmorphism CSS Generator
Create beautiful frosted glass effects with CSS.
SVG Blob Generator
Generate organic SVG blob shapes for your designs.
CSS Flexbox Generator
Visually build and copy CSS Flexbox layout code.
CSS Grid Generator
Create complex CSS Grid layouts with an interactive editor.
CSS Button Generator
Design premium-style CSS buttons with hover effects.
CSS Filter Effects
Apply and copy CSS filter effects for images.
Meta Tag Generator
Generate SEO and social media meta tags for your site.
JSON to TypeScript
Convert JSON objects into TypeScript interfaces.
Color Contrast Checker
Check color contrast for WCAG accessibility compliance.
Robots.txt Generator
Quickly create robots.txt files for search engines.
Sitemap Generator
Generate basic XML sitemaps for your website.
HTML Table Generator
Visually build and copy HTML table code.
Image to Base64 Converter
Convert any image to a Base64 encoded string locally.
Base64 to Image
Convert a Base64 string back to a downloadable image.
Image Resizer
Easily resize images with aspect ratio locking.
Pomodoro Timer
Focus timer with customizable work and break intervals.
Simple Habit Tracker
Track your daily habits and maintain your streaks.
Quick To-Do List
Simple browser-based task manager to stay organized.
Random Decision Wheel
Spin the wheel to make random decisions fun.
Stopwatch & Lap Timer
High-precision stopwatch with lap timing features.
World Clock
Current time across major cities and time zones.
Days Until Countdown
Countdown to specific events, holidays, or milestones.
Leap Year Checker
Quickly find out if any given year is a leap year.
Morse Code Audio
Convert text into Morse code audio signals.
Simple Scratchpad
Autosaving notes for quick thoughts and snippets.
Water Intake Calculator
Calculate your daily hydration goal based on weight.
Ideal Weight Calculator
Estimate your target weight based on clinical formulas.
Body Fat Percentage
Estimate body fat using US Navy tape-measure method.
Macros Calculator
Breakdown of Protein, Carbs, and Fats for your goals.
Running Pace Calculator
Find required pace for race distances and times.
Interval Timer (HIIT)
Timer for HIIT, workouts, and circuit training.
Steps to Km Converter
Convert daily steps into distance (km and miles).
BSA Calculator
Calculate Body Surface Area based on height and weight.
Length Converter
Convert between meters, feets, inches, and other length units.
Weight Converter
Convert between kilograms, pounds, and other weight units.
Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin.
Digital Data Converter
Convert between Bytes, KB, MB, GB, and TB.
Everything you need. Nothing you don't.
We built Tools Repository to be the fastest, most reliable tool companion for developers and creators.
Privacy First
Your data never leaves your browser. All processing happens locally on your machine.
Blazing Fast
No account required. Open the page and start using your favorite tool instantly.
Modern Tech
Built with Next.js and pure CSS for a lightweight, performant, and premium experience.
Tools Repository - Frequently Asked Questions
Everything you need to know
Tools Repository is a comprehensive collection of over 100 free, online utility tools designed to simplify your daily digital tasks. From text formatting and calculators to developer utilities and health trackers, we have it all.
We currently offer over 102 premium tools across various categories, and we are constantly adding new ones based on user feedback.
Yes, every single tool on our platform is completely free. We do not require any payments, subscriptions, or hidden fees.
Yes. Most of our tools process data locally in your browser, meaning your sensitive information never touches our servers. Your privacy and security are our top priorities.
Absolutely! Any code, gradient, SVG, or text result generated here is free to use for both personal and commercial projects.
No installation is required. All tools run directly in your web browser on any device, including smartphones, tablets, and computers.
We frequently update our registry and add new tools. If you have a suggestion for a new tool, feel free to contact us!