Free Developer Tools
100% client-side tools for developers. No signup, no tracking, completely free.
All tools run entirely in your browser. Your data never leaves your computer.
Image Compressor
Compress JPEG, PNG, WebP images
Word Counter
Count words, characters, and sentences
Markdown Preview
Write and preview Markdown with real-time rendering, GitHub Flavored Markdown support, and syntax highlighting
Lorem Ipsum Generator
Generate placeholder text for designs
Diff Checker
Compare two texts and highlight differences instantly
Password Generator
Generate secure random passwords
Color Converter
Convert between HEX, RGB, HSL formats
QR Code Generator
Create QR codes for URLs, WiFi, contacts, email, SMS, and phone numbers. Customize colors and size, download as PNG or SVG.
JSON Formatter & Validator
Format, validate, and minify JSON instantly
JSON to CSV Converter
Convert between JSON and CSV formats
Timestamp Converter
Convert Unix timestamps to dates
Base64 Encoder/Decoder
Encode and decode Base64 strings
Cron Expression Builder
Build and validate cron schedule expressions
UUID/ULID Generator
Generate unique identifiers instantly
Regex Tester
Test and debug regular expressions
JWT Decoder
Decode and inspect JSON Web Tokens
Hash Generator
Generate MD5, SHA-256, SHA-512 hashes
URL Encoder/Decoder
Encode and decode URLs and query strings
JSON to YAML Converter
Convert JSON data to YAML format for configs, Docker, Kubernetes
YAML to JSON Converter
Convert YAML configs to JSON format for APIs and data exchange
XML to JSON Converter
Convert XML data to JSON format. Handles attributes, CDATA, and nested elements
XML to CSV Converter
Convert XML data to CSV spreadsheet format for Excel and Google Sheets
Twitter Character Counter
Count characters for Twitter/X posts with real-time tracking for URLs, mentions, and emojis
Hex to RGB Converter
Convert hex color codes to RGB, HSL, and CMYK values with live preview and CSS code generation
Slug Generator
Convert any text to clean, SEO-friendly URL slugs with transliteration, stop word removal, and bulk generation
ASCII Table & Generator
Complete ASCII reference table with all 128 characters. Search, filter, and convert text to ASCII codes instantly
Text to Binary Converter
Convert text to binary code and binary to text instantly with ASCII and UTF-8 encoding support
CSV to XML Converter
Convert CSV data to well-formatted XML with custom element names, attribute mode, and CDATA support
JSON to XML Converter
Convert JSON data to well-formatted XML with custom root elements, smart array handling, and type attributes
CSV to SQL Converter
Generate SQL INSERT, CREATE TABLE, and UPDATE statements from CSV data with auto type detection
JSON to TypeScript Converter
Generate TypeScript interfaces and types from JSON data with smart naming, union types, and configurable output
Student Email Signature Generator
Create professional email signatures for students with university, major, graduation year, social links, and multiple templates
Chmod Calculator
Calculate Linux file permissions with an interactive visual grid. Convert between octal (755) and symbolic (rwxr-xr-x) notation.
Markdown to HTML Converter
Convert Markdown syntax to clean HTML code with live preview. Supports headings, lists, tables, code blocks, and GFM extensions.
Base64 to Image Converter
Decode Base64 strings to viewable and downloadable images. Supports PNG, JPEG, GIF, WebP, SVG with auto-format detection.
Robots.txt Generator
Create robots.txt files with a visual editor. Add rules for search engines and AI bots, set crawl delays, and include sitemaps.
Bubble Text Generator
Convert your text to bubble letters (ⓑⓤⓑⓑⓛⓔ) instantly for social media, Discord, and more. Copy and paste bubble text anywhere.
Strikethrough Text Generator
Create crossed out text instantly for social media, Discord, and more. Copy and paste strikethrough text anywhere.
Upside Down Text Generator
Flip your text upside down instantly for social media, Discord, and more. Copy and paste flipped text anywhere.
Zalgo Text Generator
Create creepy glitch text with customizable chaos level instantly. Perfect for Discord, social media, and memes.
Small Text Generator
Convert your text to superscript, subscript, and small caps instantly for social media, Discord, and more. Copy and paste tiny text anywhere.
Morse Code Translator
Convert text to Morse code and Morse code to text instantly. Listen to audio playback with adjustable speed. Supports letters, numbers, and punctuation.
Chronological Age Calculator
Calculate your exact age in years, months, days, hours, minutes, and seconds. Find next birthday countdown and zodiac sign.
Korean Age Calculator
Calculate your Korean age, international age, and see the difference. Learn how the traditional Korean age system works.
Crontab Guru
Build, validate, and understand cron expressions with human-readable explanations and next scheduled run times. Interactive crontab editor for developers.
HTTP Status Codes Cheat Sheet
Complete HTTP status codes reference with descriptions, categories, and examples. Search and filter all 1xx-5xx response codes instantly.
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