Code Beautifier & Formatter

Code beautification (also called pretty-printing or formatting) reformats source code with consistent indentation, spacing, and line breaks to make it human-readable. Well-formatted code is much easier to read, debug, and collaborate on. It's especially useful after minification, copying from documentation, or working with AI-generated code.

Beautify expands code with proper indentation and whitespace for readability — ideal for development and debugging. Minify does the opposite: it strips all unnecessary whitespace, comments, and shortens variable names to reduce file size, which speeds up website loading times in production.

Your code never leaves your device. All formatting is done entirely in your browser using JavaScript libraries. No data is uploaded to any server, so it's completely safe to paste sensitive or proprietary code.

JSON has a strict syntax. Common errors include: trailing commas after the last property, single quotes instead of double quotes for strings, unquoted property keys, or JavaScript-style comments. The error message shown will point you to the exact location of the problem. Unlike HTML/CSS/JS, JSON cannot be minified if it contains syntax errors.