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CrypTool 2 is open source. Anyone interested in adding functionality is welcome to do so. CrypTool 2 is based on the latest .NET Framework (currently .NET 4.0) and has a pure-plugin architecture, which makes it very easy for new volunteers to develop additional features.
This page is an archive of all current builds of CrypTool 2.
The builds run on 32 and 64 Bit Windows. Please note that you need the Microsoft .NET Framework 4.0 to run CrypTool 2.
No admin rights are needed for the installation.
Each build is available as an .exe installer and as a compressed zip archive. Both have an online update mechanism. The .exe installer supports registration of start menu entry, desktop link and explorer file type, but does not support more than one .exe installation. If in doubt, use the .exe installer.


Stable versions and releases

The most recent release version of CrypTool 2 is CrypTool 2.0 (Stable Build 6222.1). It and can be downloaded here.

Nightly Builds

Nightly builds are compiled every night based on the most current version of the source code checked into the SVN repository.
Please be aware that these builds are work in progress. They are by no means guaranteed to be stable, and they may contain experimental features that are not yet fully functional.
CrypTool 2.1 (Nightly Build 7048.1) - February-24-2017 01:13:44 - 88.702.386 Byte - ZIP file EXE installer
CrypTool 2.1 (Nightly Build 7041.1) - February-22-2017 01:13:20 - 88.688.621 Byte - ZIP file EXE installer
CrypTool 2.1 (Nightly Build 7037.1) - February-21-2017 01:13:52 - 88.688.693 Byte - ZIP file EXE installer
CrypTool 2.1 (Nightly Build 7033.1) - February-17-2017 01:13:42 - 88.677.624 Byte - ZIP file EXE installer
CrypTool 2.1 (Nightly Build 7027.1) - February-14-2017 01:14:02 - 88.677.796 Byte - ZIP file EXE installer
CrypTool 2.1 (Nightly Build 7023.1) - February-13-2017 01:13:23 - 88.676.669 Byte - ZIP file EXE installer
CrypTool 2.1 (Nightly Build 7017.1) - February-12-2017 01:13:42 - 88.675.380 Byte - ZIP file EXE installer
CrypTool 2.1 (Nightly Build 7014.1) - February-04-2017 01:13:45 - 88.675.143 Byte - ZIP file EXE installer
CrypTool 2.1 (Nightly Build 7013.1) - February-03-2017 01:13:31 - 88.675.168 Byte - ZIP file EXE installer
CrypTool 2.1 (Nightly Build 7008.1) - January-30-2017 01:13:39 - 88.674.504 Byte - ZIP file EXE installer

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