Choose Files:


Drop JavaScript 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 JS files:

  1. Settings

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

  2. Add Files

    Drag multiple JavaScript files to the "Choose Files" section. Each JavaScript 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:

JavaScript, often abbreviated as JS, is a high-level, interpreted programming language that conforms to the ECMAScript specification. It is a programming language that is characterized as dynamic, weakly typed, prototype-based and multi-paradigm. Alongside HTML and CSS, JavaScript is one of the core technologies of the World Wide Web. JavaScript enables interactive web pages and is an essential part of web applications. The vast majority of websites use it, and major web browsers have a dedicated JavaScript engine to execute it.

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

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

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