JavaScript Beautifier & Formatter
Format, un-minify, or compact JavaScript & TypeScript code into clean, readable scripts with custom indentation.
Batch workspace
Format multiple files locally in one run.
How to use the JavaScript Beautifier
Paste code or file
Paste your raw JAVASCRIPT text or upload directly.
Configure options
Choose indentation, dialect, or formatting preferences.
Format & export
Click format, then copy, download, or inspect in tree view.
What is a JavaScript Beautifier?
Format, un-minify, or compact JavaScript & TypeScript code into clean, readable scripts with custom indentation. This tool re-indents and organizes code according to standard style conventions while checking for syntax validity. Everything executes 100% inside your browser, guaranteeing zero latency and complete privacy for API keys, user tokens, and confidential database schemas.
Options Explained
| Option | Description |
|---|---|
| Mode | Choose whether to expand code into readable indented format or compact into a smaller footprint. |
| Indent size | Number of spaces per indentation level. |
| Space before conditionals | Formats as `if (condition)` rather than `if(condition)`. |
Frequently Asked Questions
Can this beautifier un-minify minified JavaScript code?
Yes. It restores structure, nested indentation, line breaks, and braces from single-line bundled or minified JS.
Does it support modern ES6+, TypeScript, and JSX syntax?
Yes. Arrow functions, async/await, optional chaining, template literals, and object destructuring are fully supported.
Is my source code sent to any server?
No. All code analysis and formatting run strictly inside your browser memory.
Can I use it to compress or minify JavaScript?
Yes. Selecting 'Minify (Compact)' mode strips comments and collapses whitespace safely.
What keyboard shortcut formats the code?
You can press ⌘+Enter (Mac) or Ctrl+Enter (Windows/Linux) anytime inside the editor to format instantly.