Well-formatted JavaScript code is easier to read, debug, and maintain. Minified JavaScript reduces file size for faster page loads. This tool handles both: paste minified code to beautify it with proper indentation, or paste formatted code to minify it. Supports modern ES2024+ syntax including optional chaining, nullish coalescing, top-level await, and decorators.
Paste JavaScript code into the input field and click 'Format' to add proper indentation and line breaks, or 'Minify' to remove all whitespace and compress the code. The formatter handles modern JavaScript syntax including arrow functions, template literals, optional chaining, destructuring, async/await, and class fields.
JavaScript formatting is crucial for reading obfuscated or minified code (e.g., from browser DevTools sources), standardizing code style before committing to version control, beautifying code snippets for documentation and blog posts, reformatting copy-pasted code from Stack Overflow or AI assistants, and quickly debugging syntax issues by making the code structure visible through proper indentation.
The formatter uses a token-based parser that identifies JavaScript syntax elements: keywords, operators, string literals (single, double, template), regex literals, comments (line and block), and structural characters (braces, brackets, parentheses). Indentation is adjusted based on brace depth. The minifier removes whitespace and comments while preserving necessary spaces between keywords.
Paste the minified JavaScript into the input and click Format. The tool adds proper indentation, line breaks, and spacing to make the code readable.
Paste your JavaScript code and click Minify. The tool removes whitespace, newlines, and comments, producing compact code suitable for production. Note: for production builds, use dedicated tools like Terser that also perform dead code elimination and name mangling.
No. The tool only reformats the text structure - it never evaluates or executes any JavaScript code. It is completely safe to paste any code.
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