Choose Files:


Drop CSS files here
(Up to 100 files, 40 MB each.)

Compression Settings:

Output Files:

To compress all output files in a ZIP file, click "" icon on the right, then click "Add to ZIP". To download one single file, simply right-click on file link and click "Save link as...".

File Name Original Size Output Size Size Compressed Actions

How to compress CSS files:

  1. Settings

    Set CSS compression level to "Normal Compression" or "Highest Compression".

  2. Add Files

    Drag multiple CSS files to the "Choose Files" section. Each CSS file size can be up to 40 MB.

  3. Compress Files

    The batch compression automatically starts when files are uploaded. Please be patient while files are uploading or compressing.

  4. Output Files

    The output files will be listed in the "Output Files" section. To compress all output files in a ZIP file, click "" icon on the right, then click "Add to ZIP". You can right-click on file name and click "Save link as..." to save the file. The output files will be automatically deleted on our server in two hours, so please download them to your computer or save them to online storage services such as Google Drive or Dropbox as soon as possible.

About:

Cascading Style Sheets (CSS) is a style sheet language used for describing the presentation of a document written in a markup language like HTML. CSS is a cornerstone technology of the World Wide Web, alongside HTML and JavaScript.

You can use this CSS compressor to compress CSS stylesheets to reduce file size, get lower download times and save website bandwidth. The CSS files used on compresss.com have been compressed by this CSS compressor.

Please note this CSS compressor will not do structural changes to your stylesheets. Although structural changes could result in smaller files (1%-5% smaller in our tests), the complexity is quite high and the risk of breaking website is high too. We notice some websites look different after compression if structural change is enabled.

The latest update changes css file encoding from UTF-8 to ANSI/ASCII. ANSI/ASCII encoding is more suitable for CSS files.

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Aconvert.com is a sister website of Compresss.com, it focuses on converting files instead of compressing files.