150+ Free Developer Tools — Fast, Private, Powerful
Your complete toolkit for development, design, and daily productivity. Format JSON, generate passwords, convert colors, create QR codes, and more. No signup required, no data collected.
Lightning Fast
All tools run instantly in your browser with no server round-trips needed.
Privacy First
Your data never leaves your browser. No tracking, no analytics, no cookies.
Beautiful UI
Modern interface with dark mode, syntax highlighting, and mobile support.
Browse by Category
Tools organized for developers, designers, marketers, and everyday tasks.
Developer Tools
JSON, SQL, code formatters, minifiers, encoders, and API helpers.
70+ toolsText & Content
Word counter, case converter, text cleaner, markdown preview, and more.
25+ toolsDesign & CSS
Color converter, gradient generator, box shadow, glassmorphism tools.
15+ toolsSecurity & Crypto
Password generator, hash generator, HMAC, JWT decoder, validators.
10+ toolsGenerators
UUID, QR code, fake data, bulk passwords, random data generators.
12+ toolsFile Converters
Image converter, compressor, resizer. Convert JPG, PNG, WEBP formats.
5+ toolsDaily Life
BMI, loan EMI, tip calculator, date difference, and more utilities.
30+ toolsFeatured Tools
Most popular tools loved by developers and creators.
JSON Formatter
Format, validate, and beautify JSON with syntax highlighting.
PopularPassword Generator
Create strong, secure passwords with customizable options.
PopularQR Code Generator
Generate QR codes from URLs, text, or any data instantly.
PopularColor Converter
Convert colors between HEX, RGB, HSL formats with preview.
NewJWT Decoder
Decode and inspect JWT tokens without verification.
PopularUUID Generator
Generate random UUIDs (v4) for unique identifiers.
Developer Tools
Essential tools for coding, debugging, and API development.
JSON Formatter
Format and validate JSON with syntax highlighting.
SQL Formatter
Beautify SQL queries with proper indentation.
XML Formatter
Format and beautify XML with proper indentation.
GraphQL Formatter
Format and beautify GraphQL queries.
JSON to CSV
Convert JSON arrays to downloadable CSV files.
CSV to JSON
Convert CSV data into JSON format instantly.
JSON ↔ YAML
Convert between JSON and YAML formats.
Timestamp Converter
Convert Unix timestamps to human-readable dates.
Number Converter
Convert between decimal, binary, octal, hex.
Base64 Encoder
Encode and decode Base64 data safely.
URL Encoder
Encode and decode URL components.
HTML Entities
Encode and decode HTML entities.
JSON Minifier
Minify JSON by removing whitespace.
CSS Minifier
Minify CSS by removing comments and whitespace.
JS Minifier
Minify JavaScript code for production.
HTML Minifier
Minify HTML by removing extra whitespace.
JSON to XML
Convert JSON objects to XML format.
HTML to Markdown
Convert HTML code to Markdown format.
HTML to JSX
Convert HTML to JSX/React syntax.
SVG to Base64
Convert SVG code to Base64 data URI.
JSON Schema Generator
Generate JSON Schema from a JSON sample.
TypeScript Generator
Generate TypeScript interfaces from JSON.
IP Subnet Calculator
Calculate subnet details from CIDR notation.
MAC Generator
Generate random MAC addresses for testing.
Regex Cheatsheet
Quick reference for regex patterns.
ASCII Table
Quick reference for ASCII character codes.
Unicode Lookup
Get Unicode code points for characters.
SQL Escape
Escape strings for safe SQL queries.
XPath Generator
Generate XPath expressions for elements.
CSS Selector Generator
Generate and test CSS selectors.
Meta Tag Generator
Generate HTML meta tags for SEO.
Open Graph Generator
Generate Open Graph tags for social sharing.
Twitter Card Generator
Generate Twitter Card meta tags.
JSON-LD Generator
Generate structured data for SEO.
.htaccess Generator
Generate Apache .htaccess rules.
Nginx Config Generator
Generate Nginx server configurations.
Dockerfile Generator
Generate Dockerfile templates.
Git Command Builder
Build common Git commands with options.
README Generator
Generate README.md templates.
License Generator
Generate open source license text.
Commit Message Generator
Generate conventional commit messages.
Design & CSS Tools
Beautiful tools for designers and frontend developers.
Color Converter
Convert HEX, RGB, HSL colors with live preview.
Color Palette
Generate shade palettes from a base color.
CSS Gradient
Generate linear and radial gradient code.
Box Shadow
Generate CSS box-shadow with presets.
Glassmorphism
Generate glassmorphism card styles.
Neumorphism
Generate neumorphism / soft UI styles.
CSS Animation
Generate keyframe animations.
Tailwind Generator
Generate Tailwind utility class snippets.
Aspect Ratio
Calculate aspect ratios and resize dimensions.
Placeholder Image
Generate placeholder image URLs.
Contrast Checker
Check WCAG color contrast ratios.
PX to REM Converter
Convert between pixels and rem units.
Color Blindness Simulator
Simulate color vision deficiency.
Security & Crypto Tools
Generate secure passwords, hashes, and validate credentials.
Password Generator
Create strong passwords with customizable options.
Bulk Passwords
Generate multiple strong passwords at once.
Password Strength
Analyze password strength and get improvement tips.
Hash Generator
Generate SHA-256, SHA-384, SHA-512 hashes.
Advanced Hash
Generate SHA-1 through SHA-512 hashes.
HMAC Generator
Generate HMAC signatures from message and key.
JWT Decoder
Decode and inspect JWT tokens.
Luhn Validator
Validate credit card numbers using Luhn algorithm.
Generator Tools
Generate UUIDs, QR codes, fake data, and random values.
UUID Generator
Generate random UUIDs (v4) for unique identifiers.
UUID Bulk
Generate hundreds of UUIDs at once.
UUID Validator
Validate UUIDs and detect versions.
QR Code Generator
Generate QR codes from URLs or text.
Fake Data
Generate realistic names, emails, addresses.
Random Data
Generate random numbers, strings, tokens.
Lorem Ipsum
Generate placeholder text for mockups.
Slug Generator
Convert text to URL-friendly slugs.
Text & Content Tools
Process, analyze, and transform text content.
Word Counter
Count words, characters, sentences, and reading time.
Text Case Converter
Convert text between upper, lower, title, sentence case.
Text Cleaner
Remove extra spaces, special characters, blank lines.
Text Sorter
Sort lines alphabetically, numerically, or by length.
Remove Duplicates
Remove duplicate lines from text.
Find & Replace
Advanced find and replace with regex support.
Diff Checker
Compare two texts and highlight differences.
Markdown Preview
Convert Markdown to HTML with live preview.
Markdown Table
Generate Markdown tables from simple input.
Keyword Density
Analyze keyword frequency for SEO.
Morse Code Converter
Convert text to Morse code and back.
ROT13 Encoder
Encode/decode text with ROT13 cipher.
Caesar Cipher
Encrypt text with custom shift cipher.
NATO Phonetic Alphabet
Convert text to NATO phonetic alphabet.
Roman Numeral Converter
Convert Arabic to Roman numerals.
Text Statistics
Get detailed stats and readability scores.
Word Frequency Analyzer
Analyze word frequency distribution.
Reading Time Calculator
Calculate reading and speaking time.
Text Reverser
Reverse text, words, or lines.
Text Repeater
Repeat text multiple times.
Case Alternator
Convert to alternating or random case.
Text Shuffle
Shuffle lines, words, or characters.
Emoji Picker
Search and copy emojis for projects.
File Converter & Image Tools
Convert images, compress files, and resize pictures. Popular tools everyone needs!
Image Format Converter
Convert JPG, PNG, WEBP, GIF images between formats.
NewImage Compressor
Compress images to reduce file size while keeping quality.
NewImage Resizer
Resize images to specific dimensions or percentage.
NewXML to JSON
Convert XML data to JSON format instantly.
NewMarkdown to HTML
Convert Markdown text to clean HTML code.
File to Base64
Convert any file to Base64 encoded string.
SVG to Base64
Convert SVG code to Base64 data URI.
Daily Life Tools
Calculators and utilities for everyday tasks.
BMI Calculator
Calculate Body Mass Index and health category.
Calorie Calculator
Estimate daily calorie needs using BMR.
Water Intake
Calculate daily water intake based on weight.
Sleep Cycle
Calculate ideal sleep and wake times.
Loan EMI Calculator
Calculate monthly payment and total interest.
Savings Planner
Plan to reach your savings goals.
Tip Calculator
Split bills with tip and per-person totals.
Discount Calculator
Calculate final price with discount and tax.
Percentage Calculator
Calculate percentages and percent changes.
Age Calculator
Calculate exact age in years, months, days.
Date Difference
Calculate difference between two dates.
Working Days
Count working days excluding weekends.
Timezone Converter
Convert times between world timezones.
Trip Budget
Estimate travel budget for your trip.
Fuel Cost
Estimate trip fuel usage and cost.
Grade Calculator
Calculate average score and letter grade.
Temperature Converter
Convert Celsius, Fahrenheit, Kelvin.
Length Converter
Convert meters, feet, inches, miles.
Weight Converter
Convert kg, pounds, ounces, grams.
Area Converter
Convert sq meters, sq feet, acres.
Volume Converter
Convert liters, gallons, cups, ml.
Speed Converter
Convert mph, km/h, m/s, knots.
Time Unit Converter
Convert seconds to years and more.
Cooking Converter
Convert cups, tablespoons, teaspoons.
Pomodoro Timer
Plan focused work sessions.
Countdown Calculator
Calculate time until a target date.
World Clock
View time across world timezones.
Compound Interest
Calculate investment growth over time.
Invoice Generator
Generate simple text invoices.
Number Formatter
Format numbers with locale settings.
Unit Price Calculator
Compare products by cost per unit.
Random Picker
Pick a random choice from a list.
All Available Tools
156+ powerful tools and growing. More added every week.