Index:

New update! Use lossy compression to shrink GIF images, formerly using lossless compression can only reduce file size by about 5%.

New update! Image Compressor app for Android is available now, compress images on your phone offline.

Compresss.com is a one-stop website to compress all kinds of website files including HTML, CSS, JAVASCRIPT, XML, JSON, JPG, PNG, GIF, SVG, WEBP, HEIC, AVIF, PDF, Word, Excel, PowerPoint, etc. You can drag multiple website files to the form below to compress them. The output files will be listed in the "Output Files" section.

Furthermore, Compresss.com can also compress all kinds of video (such as MP4, WEBM, MOV, MKV or WMV) and audio (such as MP3, M4A, AAC, OGG or WAV) files online.

Sometimes converting file to another format may significantly reduce file size.

Choose Files:


Drop website files here
(html, css, js, jpg, png, gif, svg, webp, etc.)

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

Steps:

  1. Add Files

    You can drag all kinds of website files to the "Choose Files" section. File extension name can be .html, .css, .js, .xml, .json, .jpg, .jpeg, .png, .gif, .svg, .webp, etc. Each file size can be up to 40 MB.

  2. Compress Files

    The batch compression automatically starts when files are uploaded. Please be patient while files are uploading or compressing. Click links on the left menu to open specific format compression page if you need to set specific compression options such as JPEG quality or compression level.

  3. 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.

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