Free Developer Tools

All-in-one JSON utility: format, beautify, minify, validate, view tree, compare diffs, and validate against JSON Schema — all in one place.

Complete XML utility suite: format, minify, validate, and browse as an interactive tree — all tabs in one page.

HTML utility hub: format/beautify, minify, encode entities, and decode HTML entities — all on a single page.

CSS utility hub: beautify / format stylesheets and minify CSS for production — on a single page.

JavaScript utility hub: beautify / format JS code and minify scripts for production — all in one place.

SQL utility hub: format/beautify SQL queries, minify them, and convert between SQL and JSON — all tabs on one page.

YAML utility hub: format/beautify YAML configs and validate syntax — both in one page.

All data-format converters in one hub: JSON↔XML, JSON↔CSV, JSON↔YAML, JSON↔SQL, CSV↔XML, XML↔YAML and more.

Format and beautify JSON and XML API responses instantly in the browser.

Easily build executable cURL commands with custom methods, headers, and payloads.

Decode and inspect JSON Web Tokens (JWT) instantly.

Generate organic, fluid SVG background shapes and wave dividers in real-time. Customize gradients, complexity, and export ready-to-use SVG/CSS code.

Paste your tailwind.config.js file to parse and visualize your custom theme configurations: color palettes, typography, spacing, shadows, and borders in an interactive dashboard.

Calculate Linux/Unix chmod permissions instantly. Select Read, Write, and Execute checkboxes to generate octal (e.g., 755) and symbolic (e.g., -rwxr-xr-x) representations.

Generate standard cron expressions interactively. Select intervals for minutes, hours, days, months, and weekdays to build your schedule.

Test, visualize, and debug Regular Expressions (Regex) in your browser. Supports global, multiline, and case-insensitive flags with live highlighting.

Test REST APIs directly from your browser. Send GET, POST, PUT, DELETE requests with custom headers and body payloads.

Generate code snippets for your API requests. Supports native Fetch, Axios, and cURL commands for seamless integration.

Create and sign JSON Web Tokens (JWT) for testing and development. Securely sign tokens using HMAC SHA-256 directly in your browser.

Search and browse standard HTTP response status codes. Get detailed explanations and troubleshooting tips for 1xx, 2xx, 3xx, 4xx, and 5xx errors.