Online code minifier
Shrink deploy-ready HTML, CSS, JavaScript, and JSON when a quick static asset cleanup matters.
Why minify code?
Faster loading
Removing comments, whitespace, and redundant characters reduces transfer size before the asset reaches the browser.
Lower bandwidth cost
Smaller assets reduce the amount of data a site needs to deliver, which matters more as a static file is reused across pages, regions, and campaigns.
Less parsing work
Browsers still need to parse the response after download. Shorter payloads can reduce parse work, especially for JavaScript and large inline data.
Cleaner static output
Minification is useful when you need to ship a quick static file, landing page snippet, embed, mock API response, or exported demo without running a full build.
Minification vs obfuscation vs transfer compression
Minification
Removes unnecessary characters without intentionally changing the logic structure.
Obfuscation
Makes code harder for humans to read by renaming identifiers or reshaping logic.
Gzip / Brotli
Transfer compression reduces bytes in transit. It complements minification because the source file is still cleaner and smaller before compression.
Tree shaking
Eliminates unused modules during the build step instead of only shrinking the final emitted code.
Frequently asked questions
Can minified code be made readable again?
Formatting tools can restore whitespace and line breaks, but comments and original variable intent are often lost.
Is this tool safe for private code?
The transformation runs in the browser, so the code does not need to be uploaded to a remote service just to be minified.
Can minification ever break code?
It usually should not, but malformed input or edge cases can still create output that deserves testing before production use.
Do I still need minification if my CDN uses Brotli?
Usually yes. Brotli compresses transfer size, while minification removes unnecessary source characters before compression and before anyone stores, reviews, or embeds the asset.
Should I minify during the build instead?
For production apps, yes. This tool is best for quick cleanup, static snippets, exported demos, one-off files, and debugging output before it enters a proper build pipeline.