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AlphaTcl packages


Useful Alpha links


This page contains information about the most recent builds (development and stable branches) of AlphaX.

The stable releases are usually announced on the AlphaTcl-users list (you can subscribe here ).


The last official release of AlphaX is version 8.2.3. Download the disk image here:

AlphaX-8.2.3.dmg (16.8M)

Once it is downloaded, double-click on the icon of the disk image. A window containing the application will open. Then drag the AlphaX application to the Applications folder (or anywhere you like on your machine).

Under Mac OS X 10.9 (Mavericks), you need at least version 8.2.2 of AlphaX.


You may see the following message when launching this new version for the first time under Mavericks : "AlphaX can't be opened because it is from an unidentified developer". This is due to the fact that AlphaX is not (yet) a signed application. Here are instructions to bypass the Security & Privacy System preference which is responsible for this message: how-to-open-applications-from-unidentified-developers (instructions are given for Mountain Lion but they apply just the same to Mavericks).


All the development effort is now dedicated to AlphaCocoa which is a reimplementation from scratch of Alpha. It is written in Objective C and based on the Mac OS X Cocoa framework. The AlphaCocoa project is hosted on SourceForge.

go to the AlphaCocoa project.

It is in early development stage. Test versions are available here:

download AlphaCocoa.


Here is a compiled binary of the Tclapplescript extension version 2.1 which can be used in AlphaX on Yosemite systems (Mac OS X 10.10). Download and unzip the archive, then copy it inside the AlphaX application bundle in

This fixes the issue reported with the version 1.0 where loading the extension resulted in an error message "Error: Error opening component".

Download for AlphaX on Mac OS X 10.10

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Date: 2013-10-25 10:21:59