Lightweight browser-based utilities to format code, validate syntax, test regular expressions, and generate secure tokens. Most tools run in your browser without uploading your input.
JSON Formatter & Validator
Inspect, clean, and format nested JSON with auto-indentation and real-time syntax error highlighting.
HTML, CSS & JavaScript Minifier
Compress client-side assets to reduce file size for testing and handoff. Processing stays in the browser.
Regex Tester & Debugger
Build and evaluate regular expressions with live match highlighting and capture groups.
Base64 & URL Encoder
Encode and decode strings and URL parameters for web workflows. Text-based tools run locally in the browser.
JSON Formatter
Format, validate & beautify JSON
⭐ Popular
Text Compare
Compare two text blocks side-by-side and highlight differences
⭐ Popular
Regex Tester
Test and debug regular expressions
HTML/CSS/JS Minifier
Minify code to reduce file size
Base64 Encoder
Encode and decode Base64 text
Password Generator
Generate strong, secure passwords
⭐ Popular
Temp Mail
Free temporary and disposable email inbox
⭐ Popular
QR Code Generator
Generate QR codes for URLs or text
UUID Generator
Generate unique UUID/GUID values
URL Encoder / Decoder
Encode or decode URL strings
Markdown Editor
Write and preview Markdown live