Download MooTools 1.2.5

From this page you can download the full MooTools Core.

If you need more functionality, head over to the More Builder.

Download Compression type Size SHA1
MooTools 1.2.5 YUI Compressor 65 kb 49d4497a54a3aca9b047e2e7f935392befbec166
MooTools 1.2.5 JSMin 78 kb da59dbd18955cfe30ef93886452e319d3a635680
MooTools 1.2.5 Uncompressed 101 kb 3d9fc65389ce7de16f87909039aa2e728c693b3d

The GZipped version of MooTools weighs about 20 kb. For best results, always GZip a YUI Compressed MooTools.

You can also acquire these files via the Google Ajax Libraries API.

Server-Side Download

This is a customized MooTools build without any component relative to browsers. Includes Class, Core and Native Extensions. It's specifically made for server-side environments such as v8cgi, Rhino or SpiderMonkey.

Download Compression type Size SHA1
MooTools 1.2.5 Server Uncompressed 27 kb b07a61958a88839adcd2597752544ea8c5cd592d

Advanced Download

If you want to, you can build your personalized copy of MooTools Core. You might want to leave out components you don't need such as Effects or Requests, or you might want a personalized build for non-browser environments. Either way, this full version contains all the components listed in the core builder.

MooTools 1.1 > 1.2 Upgrade Helper

The MooTools Upgrade Helper is designed to help developers move from MooTools 1.1 to 1.2. Details of its release can be found in the relevant blog post and the readme file in the repository on github.

Download Compression type Size SHA1
Upgrade Helper Script Uncompressed 21 kb 4376b75718d2edcd99a02ebb05f72dbd5d258767
1.2.5 with 1.1 Classes Uncompressed 156 kb da9979c1be7718a9582da13ef4762a6a0051fce3