Developer Utility
JavaScript Unminifier Tool
Expand minified JavaScript into a readable, line-broken layout.
Language: JavaScriptUtility: UnminifyUtility: Format
constconfig={ api:{ baseUrl:"https://api.example.com", timeout:5000 }, features:[ "search", "alerts" ] };
What This Tool Does
Expand minified JavaScript into readable blocks so code review and debugging are faster.
Use it to inspect or transform input quickly, then carry validated output into code, tests, or API requests.
Common Use Cases
- Inspect one-line bundles from logs or snippets.
- Make compressed JavaScript easier to annotate in bug reports.
- Quickly review minified utility functions during incident response.
Common Pitfalls
- This is best-effort formatting, not full AST-aware beautification.
- Original comments and exact styling cannot be recovered.
FAQ
Will this perfectly restore the original source style?
No, it produces a readable approximation of structure.
Can I run the output directly?
Usually yes, but verify behavior before production use.
Does this tool send data to a backend?
Most tools process input client-side in your browser unless explicitly noted.