Code Minifier
Client-Side SecureFree online Code Minifier. Compress and minify your CSS and JSON code to reduce file size. Improve load times instantly.
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Free CSS & JSON Minifier
Minify your code instantly to reduce file size and improve load times. Our tool strips unnecessary characters like whitespace, comments, and newlines without breaking your code's functionality.
Boost Performance
Smaller files mean faster downloads. Minifying CSS and JSON can reduce file sizes by 30-50%, drastically improving "Time to First Byte" (TTFB).
Save Bandwidth
If you host your own assets, minification saves you money. For high-traffic sites, shedding a few kilobytes per request adds up to gigabytes of data saved daily.
Better SEO Score
Google uses "Core Web Vitals" as a ranking factor. Faster websites rank higher. Minification directly improves metrics like Largest Contentful Paint (LCP).
What actually gets removed?
- Whitespace: Spaces, tabs, and newlines that developers need for readability but browsers ignore.
- Comments: Notes left in the code (`/* ... */`) are stripped out completely.
- Block Delimiters: Unnecessary semicolons at the end of CSS blocks are removed.
Minification vs. Compression
People often confuse the two. Here is the difference:
Minification: Changes code structure (removes spaces). The file is still text.
GZIP/Brotli: Compresses the file on the server level before sending it. The file becomes binary.
Pro Tip: You should use BOTH for maximum speed.
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