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 and JSON Path expressions against JSON data in real time. Test selectors and query nested 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.

Upload a CSV file and preview rows instantly in your browser. Inspect headers, columns, and delimiters privately.

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

Generate signed JWT tokens locally in your browser. Create JWT tokens online with HS256, HS384, HS512, and RS256.

Verify JWT token signatures using your secret key or RSA public 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.

Write HTML, CSS, and JavaScript in one browser-based playground with live preview and console output.

Build, edit, validate, and download Docker Compose YAML with an editor mode and a visual builder mode.

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, validate, and minify SPARQL queries online. Clean up PREFIX, SELECT, WHERE, FILTER, and graph patterns privately.

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, beautify, and unminify JavaScript code online. Turn compact JS into readable code in your browser.

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

Convert cURL commands to JavaScript Fetch API code instantly. Convert curl to fetch with headers, auth, and JSON body support.

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, including 16-character passwords.

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