Developer
Explore our collection of free developer utilities. All tools process your data locally in your browser to ensure maximum privacy and speed.
Developer
UUID Generator - Fast Version 4 GUID Generator
Generate standard random UUID v4 and GUID strings instantly for developer and database needs.
URL Encoder & Decoder - Fast Online Utility
Safely encode or decode URLs, query parameters, and special characters online for free.
Color Picker & HEX RGB HSL Converter - Free Online
Select colors and convert between HEX, RGB, HSL, and HSV formats with live preview and palette generator.
JSON Formatter & Validator - Pretty Print JSON Online
Format, validate, beautify, and minify JSON data instantly with syntax highlighting and tree view.
Developer
UUID Generator - Fast Version 4 GUID Generator
Generate standard random UUID v4 and GUID strings instantly for developer and database needs.
URL Encoder & Decoder - Fast Online Utility
Safely encode or decode URLs, query parameters, and special characters online for free.
Color Picker & HEX RGB HSL Converter - Free Online
Select colors and convert between HEX, RGB, HSL, and HSV formats with live preview and palette generator.
JSON Formatter & Validator - Pretty Print JSON Online
Format, validate, beautify, and minify JSON data instantly with syntax highlighting and tree view.
Base64 Encoder & Decoder - Online Base64 Tool
Encode and decode strings and files using Base64 securely in your browser.
CSS Gradient Generator - Beautiful Linear & Radial Gradients
Create and preview custom CSS linear and radial gradients with ready-to-copy code.
Unix Timestamp Converter - Epoch Time & Date Tool
Convert Unix epoch timestamps to human-readable UTC/Local dates and vice versa.
Hash Generator
Generate SHA-1, SHA-256, SHA-384, and SHA-512 cryptographic hashes.
Meta Tag Generator
Generate HTML meta tags for SEO, Open Graph, and Twitter Cards.
JSON ⇄ CSV Converter
Convert JSON arrays to CSV format, or CSV data into JSON format.
JWT Decoder
Decode and inspect JSON Web Tokens (JWT) securely in your browser.
SQL Formatter
Instantly format and beautify minified or messy SQL queries.
XML Formatter
Pretty-print, indent, and format raw XML data.
YAML ↔ JSON Converter
Convert robust YAML configurations to JSON and vice-versa.
Cron Expression Explainer
Translate complex cron syntax into human-readable text.
Diff Checker
Compare two blocks of text or code side-by-side to highlight differences.
Regex Tester
Test and debug regular expressions with live syntax highlighting and match extraction.
HTML Minifier
Minify and compress HTML code to reduce file size and improve load times.
CSS Minifier
Minify and compress CSS stylesheets to reduce file size and improve load times.
JavaScript Minifier
Minify and compress JS code to reduce file size and improve load times.
HTML Beautifier
Format and beautify minified or ugly HTML code to make it readable.
CSS Beautifier
Format and beautify minified or ugly CSS stylesheets to make them readable.
JavaScript Beautifier
Format and beautify minified or ugly JS code to make it readable.
JWT Generator
Create and sign JSON Web Tokens (JWT) locally with a custom payload and secret.
MIME Type Explorer
Search and lookup MIME types by file extension or view associated extensions for a MIME type.
Markdown to HTML Converter
Instantly convert Markdown syntax into raw, formatted HTML code.
HTML to Markdown Converter
Convert raw HTML code into clean, semantic Markdown syntax.
Unix Chmod Calculator
Visually calculate Unix/Linux file permissions for owner, group, and public users.
XML to JSON Converter
Convert raw XML structures into valid JSON objects instantly.
GitHub README Badge Generator
Create customizable Shields.io badges for GitHub profiles and repositories.
GitHub Profile README Preview
Live Markdown editor and preview for GitHub profile READMEs with widgets.
GitHub Repository Name Generator
Generate catchy, clean, open-source repository names by project topic.
GitHub License Chooser
Find the right open source license (MIT, Apache, GPL) and copy LICENSE text.
CSP Header Generator
Build, validate, and customize Content Security Policy HTTP headers.
HTTP Header Viewer
Inspect HTTP response headers and analyze security header configurations.