Developer & Code

Format, validate, and beautify JSON with syntax highlighting and error detection.

Encode text or files to Base64 and decode Base64 strings back to their original form.

Format and indent SQL queries for better readability across all major dialects.

Convert HTML markup into clean Markdown syntax with support for tables and lists.

Write Markdown and see the rendered HTML output in real time with live preview.

Visualize unified diffs and patch files with color-coded additions and deletions.

Test regular expressions against sample text with real-time match highlighting.

Encode special characters for URLs or decode percent-encoded URL strings.

Convert special characters to HTML entities and decode entities back to characters.

Minify CSS for production or beautify compressed CSS for readability.

Minify JavaScript to reduce file size or beautify minified code for debugging.

Decode and inspect JSON Web Tokens to view header, payload, and signature claims.

Build HTTP requests visually with method, headers, body, and params. Send via fetch and see the full response. Like a mini Postman.

Generate unique UUIDs (v4) and GUIDs individually or in bulk with one click.

Connect to a WebSocket endpoint, send and receive messages, and see a live message log with timestamps.

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text or file input.

Visualize JSON data as an interactive collapsible tree with type annotations.

Experiment with Flexbox properties visually and copy the generated CSS code.

Design CSS Grid layouts visually with drag-and-drop and export clean CSS code.

Create beautiful code screenshots with syntax highlighting, themes, and padding.

Edit SVG markup with live rendering, syntax highlighting, and instant preview.

Generate favicons in all required sizes from an image, including ICO and PNG formats.