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JavaScript Minifier
Minify JavaScript by removing comments, trimming whitespace, and outputting cleaner code instantly in your browser.
About JavaScript Minifier
JavaScript Minifier shrinks JS snippets quickly in your browser without external dependencies. It applies practical heuristics to remove comments where safe, trim extra whitespace, and collapse blank lines. Optional toggles also remove console.log lines and produce one-line output for compact embeds and payload tuning.
Why use JavaScript Minifier
- Reduce JS size quickly for demos, embeds, and docs.
- Run locally in-browser with no upload requirement.
- Toggle comment/log removal based on your use case.
How to use JavaScript Minifier
- Paste JavaScript into the input area.
- Choose comment, console.log, and one-line options.
- Generate minified output and compare byte counts.
- Copy result or clear to reset.
When to use JavaScript Minifier
- Preparing snippets for production or sharing.
- Removing debug logs before publishing code samples.
- Reducing payload size in inline script blocks.
Frequently Asked Questions
Is this a full compiler minifier?
No, it uses lightweight heuristics rather than full AST transforms.
Can I keep comments?
Yes, disable comment removal to preserve comments.
What does remove console.log do?
It strips common console.log statement lines.
Is one-line output required?
No, one-line mode is optional.
Is my code uploaded?
No, it runs entirely in-browser.