JavaScript Minifier
Compress JavaScript code by removing whitespace, comments, and applying optimizations
This is a basic minifier. For production use, consider tools like Terser or UglifyJS which use proper AST parsing for safe and advanced optimizations.
Minification Options
Choose which optimizations to apply
Input JavaScript
Minified JavaScript
About JavaScript Minification
JavaScript minification reduces file size by removing unnecessary characters and applying various optimizations while preserving functionality. This improves loading times and reduces bandwidth.
Basic Optimizations
- Remove Comments: Strips single-line and multi-line comments
- Remove Whitespace: Eliminates unnecessary spaces, tabs, and line breaks
- Remove Console: Removes console.log and similar debugging statements
Advanced Optimizations
- Shorten Variables: Renames variables to shorter names (basic implementation)
- Remove Dead Code: Eliminates unreachable code
- Mangle Names: Aggressively renames variables and functions
Advanced optimizations may break code that relies on specific variable names or uses eval/with statements. Always test thoroughly after minification.