All Developer Tools

Format, validate, and beautify JSON data online. Instant syntax highlighting and error detection.

Compare two JSON documents and highlight differences side by side. Find changes instantly.

Evaluate JSONPath expressions against JSON data in real time. Debug API responses easily.

Convert YAML to JSON and JSON to YAML bidirectionally. Instant format translation.

Convert XML to JSON and JSON to XML bidirectionally. Perfect for API and data format migration.

Beautify and validate XML documents online. Instant syntax checking and pretty printing.

Decode and inspect JWT tokens instantly. View header, payload, and signature without a secret.

Generate signed JWT tokens locally in your browser. Supports HS256, HS384, and HS512.

Verify JWT token signatures using your secret key. Validate token authenticity locally.

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from any text. Instant browser-side hashing.

Encode text or files to Base64 and decode Base64 strings back to plain text. Instant, private.

Encode and decode URLs and query parameters. Handle percent-encoding for safe URL transmission.

Encode and decode HTML entities. Convert special characters like <, >, & to safe HTML representations.

Generate UUID v1 and v4 identifiers instantly. Bulk generation with copy-to-clipboard support.

Convert Unix timestamps to human-readable dates and vice versa. Multiple timezone support.

Build cron expressions visually with a human-readable interface. Generate and validate cron schedules.

Test regular expressions in real time with syntax highlighting and match group visualization.

Generate Lorem Ipsum placeholder text by words, sentences, or paragraphs for design mockups.

Format and beautify SQL queries online. Supports MySQL, PostgreSQL, SQLite, and T-SQL.

Format and beautify CSS code with proper indentation. Clean up minified or messy stylesheets.

Minify and compress CSS code to reduce file size for production. Removes whitespace and comments.

Format and beautify JavaScript and TypeScript code online. Unminify obfuscated JS code.

Minify and compress JavaScript code to reduce bundle size for production deployment.

Convert cURL commands to JavaScript Fetch API code instantly. Supports all common curl flags.

Convert JavaScript Fetch API code to cURL commands. Debug API requests from the terminal.

Build and test HTTP API requests visually. Add headers, query params, and request body with ease.

Render and explore OpenAPI / Swagger specifications with an interactive UI. Paste YAML or JSON.

Generate strong, secure random passwords with custom length, symbols, numbers, and case options.

Generate downloadable QR codes from any text or URL. Customize size and download as PNG.