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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 4.7.1 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 their own 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 2.1 (Stable Build 7997.1). 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 8182.1) - June-18-2019 01:33:05 - 156.281.965 Byte - ZIP file EXE installer
Setup CrypTool 2.1 (Nightly Build 8182.1).exe
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CrypTool 2.1 (Nightly Build 8182.1).zip
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CrypTool 2.1 (Nightly Build 8177.1) - June-15-2019 01:28:40 - 156.249.634 Byte - ZIP file EXE installer
Setup CrypTool 2.1 (Nightly Build 8177.1).exe
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CrypTool 2.1 (Nightly Build 8177.1).zip
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CrypTool 2.1 (Nightly Build 8169.1) - June-14-2019 01:22:05 - 156.249.818 Byte - ZIP file EXE installer
Setup CrypTool 2.1 (Nightly Build 8169.1).exe
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CrypTool 2.1 (Nightly Build 8169.1).zip
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CrypTool 2.1 (Nightly Build 8166.1) - June-13-2019 01:20:27 - 156.248.935 Byte - ZIP file EXE installer
Setup CrypTool 2.1 (Nightly Build 8166.1).exe
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CrypTool 2.1 (Nightly Build 8166.1).zip
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CrypTool 2.1 (Nightly Build 8163.1) - June-12-2019 01:20:31 - 156.248.868 Byte - ZIP file EXE installer
Setup CrypTool 2.1 (Nightly Build 8163.1).exe
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CrypTool 2.1 (Nightly Build 8163.1).zip
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CrypTool 2.1 (Nightly Build 8160.1) - June-08-2019 01:19:56 - 156.241.313 Byte - ZIP file EXE installer
Setup CrypTool 2.1 (Nightly Build 8160.1).exe
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CrypTool 2.1 (Nightly Build 8160.1).zip
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CrypTool 2.1 (Nightly Build 8156.1) - June-07-2019 01:20:16 - 155.794.360 Byte - ZIP file EXE installer
Setup CrypTool 2.1 (Nightly Build 8156.1).exe
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CrypTool 2.1 (Nightly Build 8156.1).zip
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CrypTool 2.1 (Nightly Build 8151.1) - June-05-2019 01:20:00 - 155.815.523 Byte - ZIP file EXE installer
Setup CrypTool 2.1 (Nightly Build 8151.1).exe
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CrypTool 2.1 (Nightly Build 8151.1).zip
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CrypTool 2.1 (Nightly Build 8148.1) - June-04-2019 01:21:02 - 155.801.626 Byte - ZIP file EXE installer
Setup CrypTool 2.1 (Nightly Build 8148.1).exe
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CrypTool 2.1 (Nightly Build 8148.1).zip
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CrypTool 2.1 (Nightly Build 8145.1) - June-03-2019 01:20:13 - 155.801.633 Byte - ZIP file EXE installer
Setup CrypTool 2.1 (Nightly Build 8145.1).exe
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CrypTool 2.1 (Nightly Build 8145.1).zip
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