JavaScript Minifier
Compress and minify JavaScript code to reduce file size.
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JavaScript Input
Minified Output
What is JavaScript Minifier?
JavaScript minification removes unnecessary characters from code without changing functionality. This includes whitespace, comments, and shortening variable names. Minified JavaScript loads faster, reducing page load times and bandwidth usage. It's a standard practice for production websites.
How to Use This Tool
- Paste your JavaScript code in the input area
- Click 'Minify' to compress the code
- Review the output and size reduction stats
- Copy the minified code for your project
Common Use Cases
- Optimizing JavaScript for production deployment
- Reducing page load times and bandwidth
- Preparing code for CDN distribution
- Decreasing mobile data usage for users
Frequently Asked Questions
How much can minification reduce file size?
Typically 30-70% depending on the original code. Code with many comments and verbose variable names sees the biggest reductions.
Does minification affect code functionality?
No, minification only removes unnecessary characters. The code executes exactly the same. However, it becomes harder to read and debug.
Should I minify code during development?
No, keep code readable during development. Only minify for production. Use source maps in production to debug minified code if needed.