Download MooTools 1.4.5

From this page you can download the full MooTools Core. If you need more functionality, head over to the More Builder.

Proceed to the 1.2.6 download page if you’re looking for the old version instead.

Download Compression type Size SHA1
MooTools Core 1.4.5 without compatibility Uncompressed 147 kb bffe9e66e971a1ab3ce53cf9cbddbfa6823187d2
MooTools Core 1.4.5 with compatibility (for 1.2+) Uncompressed 157 kb 2cc787ebd4d29f2e24646f76f9c525336949783e
MooTools Core 1.4.5 without compatibility YUI Compressor 88 kb 2da56364be255f2a3944f11c42a1d53112066bd3
MooTools Core 1.4.5 with compatibility (for 1.2+) YUI Compressor 94 kb cc019ac09f68258ee3442fe7cc440adf78a3cef2

The GZipped version of MooTools weighs about 25 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 node.js, v8cgi, Rhino or SpiderMonkey.

Download Compression type Size SHA1
MooTools 1.4.5 Server Uncompressed 27 kb 65cb6912627e9ecfb0c3d2160a32b297d55f6760

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.

Nightly Build

If you want to get involved in testing and development, you can download the nightly version of the MooTools core. This version is built after each commit from our git repository. Always include if you wish to open up a ticket.

You can also download an nightly build of MooTools More. This file includes all plugins of MooTools More, which is usually not a good idea, so only use it for testing purposes.