JavaScript Beautifier: Make Minified Code Readable
9 min read
Minified JavaScript is hard to read: no line breaks, no indentation, variable names shortened. A JavaScript beautifier reformats it with indentation and line breaks so you can understand and debug the code. It doesn't change behaviour—only layout.
When to beautify
- Inspecting third-party scripts: You have a minified bundle and need to see what it does.
- Debugging: Stack traces refer to minified lines; beautifying helps you find the right place.
- Learning: Study how a library or script is structured by viewing a readable version.
What to expect
- Indentation: Blocks and nested code get consistent indentation.
- Line breaks: Statements and function arguments are split across lines where it helps.
- No de-obfuscation: Variable names stay as they are; only formatting changes.
Our JavaScript Beautifier runs in your browser. Paste minified or messy JS and get a readable version. Your code is never uploaded.