JavaScript Minifier — Minify JS Code Online
JavaScript Minifier strips single-line comments, multi-line comments, and unnecessary whitespace from JavaScript code. It applies simple regex-based minification suitable for quick size reduction.
Common Use Cases
- Quickly reducing JavaScript snippet size for embedding
- Removing comments from code before distribution
Frequently Asked Questions
Does this minifier mangle variable names?
No. SmartDevBox uses lightweight whitespace-only minification. It does not rename variables or use dead code elimination. For production minification, use a dedicated bundler like esbuild or Terser.
Privacy & Security
This tool runs entirely in your browser using client-side JavaScript. No data is sent to a server — your input never leaves your machine. SmartDevBox has no account system, no usage tracking, and no paid tier. See the Privacy & Security page for full details.
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