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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 64 Bit Windows. Please note that you need the Microsoft .NET Framework 4.7.2 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 8186.5). 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 8581.1) - January-24-2020 18:38:57 - 178.180.064 Byte - ZIP file EXE installer
Setup CrypTool 2.1 (Nightly Build 8581.1).exe
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CrypTool 2.1 (Nightly Build 8580.1) - January-24-2020 01:56:45 - 178.178.264 Byte - ZIP file EXE installer
Setup CrypTool 2.1 (Nightly Build 8580.1).exe
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CrypTool 2.1 (Nightly Build 8579.1) - January-23-2020 01:56:47 - 178.180.346 Byte - ZIP file EXE installer
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CrypTool 2.1 (Nightly Build 8576.1) - January-22-2020 01:56:12 - 178.179.215 Byte - ZIP file EXE installer
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CrypTool 2.1 (Nightly Build 8574.1) - January-21-2020 01:57:31 - 178.179.407 Byte - ZIP file EXE installer
Setup CrypTool 2.1 (Nightly Build 8574.1).exe
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CrypTool 2.1 (Nightly Build 8570.1) - January-20-2020 01:56:09 - 178.180.241 Byte - ZIP file EXE installer
Setup CrypTool 2.1 (Nightly Build 8570.1).exe
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CrypTool 2.1 (Nightly Build 8564.1) - January-19-2020 01:56:07 - 178.176.188 Byte - ZIP file EXE installer
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CrypTool 2.1 (Nightly Build 8564.1).zip
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CrypTool 2.1 (Nightly Build 8562.1) - January-17-2020 01:56:36 - 178.174.764 Byte - ZIP file EXE installer
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CrypTool 2.1 (Nightly Build 8555.1) - January-16-2020 01:55:24 - 178.172.941 Byte - ZIP file EXE installer
Setup CrypTool 2.1 (Nightly Build 8555.1).exe
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CrypTool 2.1 (Nightly Build 8555.1).zip
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CrypTool 2.1 (Nightly Build 8553.1) - January-14-2020 01:55:26 - 178.111.821 Byte - ZIP file EXE installer
Setup CrypTool 2.1 (Nightly Build 8553.1).exe
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CrypTool 2.1 (Nightly Build 8553.1).zip
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CrypTool 2.1 (Nightly Build 8551.1) - January-13-2020 02:07:57 - 178.112.914 Byte - ZIP file EXE installer
Setup CrypTool 2.1 (Nightly Build 8551.1).exe
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CrypTool 2.1 (Nightly Build 8548.1) - January-11-2020 01:56:23 - 178.111.729 Byte - ZIP file EXE installer
Setup CrypTool 2.1 (Nightly Build 8548.1).exe
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CrypTool 2.1 (Nightly Build 8543.1) - January-10-2020 01:54:34 - 178.110.771 Byte - ZIP file EXE installer
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CrypTool 2.1 (Nightly Build 8537.1) - January-08-2020 01:54:47 - 178.112.146 Byte - ZIP file EXE installer
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CrypTool 2.1 (Nightly Build 8533.1) - January-07-2020 10:41:28 - 178.111.418 Byte - ZIP file EXE installer
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CrypTool 2.1 (Nightly Build 8530.1) - December-27-2019 01:55:00 - 178.098.124 Byte - ZIP file EXE installer
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CrypTool 2.1 (Nightly Build 8529.1) - December-26-2019 01:55:17 - 178.097.853 Byte - ZIP file EXE installer
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CrypTool 2.1 (Nightly Build 8527.1) - December-25-2019 01:55:18 - 178.097.844 Byte - ZIP file EXE installer
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CrypTool 2.1 (Nightly Build 8526.1) - December-19-2019 01:55:05 - 178.096.192 Byte - ZIP file EXE installer
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CrypTool 2.1 (Nightly Build 8525.1) - December-18-2019 01:54:26 - 178.098.007 Byte - ZIP file EXE installer
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CrypTool 2.1 (Stable Build 8186.5) - June-25-2019 01:20:42 - 155.028.182 Byte - ZIP file EXE installer
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CrypTool 2.1 (Stable Build 7997.1) - December-19-2018 14:35:19 - 135.585.881 Byte - ZIP file EXE installer
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CrypTool 2.1 (Stable Build 7356.1) - April-26-2018 15:32:17 - 121.328.286 Byte - ZIP file EXE installer
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CrypTool 2.1 (Stable Build 7327.1) - April-06-2018 15:23:38 - 121.327.471 Byte - ZIP file EXE installer
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CrypTool 2.1 (2018.2 Beta - Build 7307.1) - March-16-2018 15:58:59 - 106.331.155 Byte - ZIP file EXE installer
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CrypTool 2.1 (2018.2 Beta - Build 7307.1).zip
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CrypTool 2.1 (2018.2 Beta - Build 7303.1) - March-09-2018 18:29:30 - 106.331.197 Byte - ZIP file EXE installer
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CrypTool 2.1 (2018.2 Beta - Build 7303.1).zip
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CrypTool 2.1 (Beta 1 - Build 7168.1) - May-16-2017 19:46:02 - 88.806.572 Byte - ZIP file EXE installer
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CrypTool 2.0 (Stable Build 6222.1) - August-20-2014 10:17:58 - 62.392.745 Byte - ZIP file EXE installer
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CrypTool 2.0 (Beta 12 - RC2 - Build 6121.1) - July-18-2014 15:07:09 - 62.572.548 Byte - ZIP file EXE installer
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CrypTool 2.0 (Beta 12 - RC2 - Build 6121.1).zip
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CrypTool 2.0 (Beta 11 - RC1 - Build 6026.1) - May-30-2014 11:17:11 - 54.237.484 Byte - ZIP file EXE installer
Setup CrypTool 2.0 (Beta 11 - RC1 - Build 6026.1).exe
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CrypTool 2.0 (Beta 11 - RC1 - Build 6026.1).zip
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CrypTool 2.0 (Beta 10 - Build 5751.1) - October-17-2013 11:15:06 - 57.407.169 Byte - ZIP file EXE installer
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CrypTool 2.0 (Beta 9 - Build 5151.1) - December-20-2012 17:53:15 - 36.948.264 Byte - ZIP file EXE installer
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CrypTool 2.0 (Beta 9 - Build 5151.1).zip
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CrypTool 2.0 (Beta 8b - Build 4805.1) - May-14-2012 15:49:30 - 26.095.928 Byte - ZIP file EXE installer
Setup CrypTool 2.0 (Beta 8b - Build 4805.1).exe
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CrypTool 2.0 (Beta 8b - Build 4805.1).zip
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CrypTool 2.0 (Beta 8 - Build 4767.1) - May-03-2012 22:46:03 - 26.083.407 Byte - ZIP file EXE installer
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CrypTool 2.0 (Beta 8 - Build 4767.1).zip
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CrypTool 2.0 (Beta 7b - Build 4481.1) - January-26-2012 23:30:52 - 25.180.993 Byte - ZIP file EXE installer
Setup CrypTool 2.0 (Beta 7b - Build 4481.1).exe
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CrypTool 2.0 (Beta 7b - Build 4481.1).zip
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CrypTool 2.0 (Beta 7 - Build 4424.1) - December-30-2011 16:07:34 - 25.176.536 Byte - ZIP file EXE installer
Setup CrypTool 2.0 (Beta 7 - Build 4424.1).exe
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CrypTool 2.0 (Beta 7 - Build 4424.1).zip
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CrypTool 2.0 (Beta 6 - Build 4229.2) - November-29-2011 00:45:46 - 27.397.982 Byte - ZIP file EXE installer

CrypTool 2.0 (Beta 6 - Build 4020.1) - October-24-2011 17:08:16 - 27.397.076 Byte - ZIP file EXE installer

CrypTool 2.0 (Beta 6 - Build 3980.2) - October-08-2011 19:55:15 - 27.251.442 Byte - ZIP file EXE installer

CrypTool 2.0 (Beta 5 - Build 3800.2) - September-13-2011 10:53:45 - 35.360.093 Byte - ZIP file EXE installer

CrypTool 2.0 (Beta 5 - Build 3578.1) - July-08-2011 17:42:55 - 35.359.811 Byte - ZIP file EXE installer

CrypTool 2.0 (Beta 4 - Build 3263.1) - May-03-2011 10:46:30 - 24.023.303 Byte - ZIP file EXE installer

CrypTool 2.0 (Beta 4 - Build 3251.1) - April-30-2011 20:10:14 - 25.201.976 Byte - ZIP file EXE installer

CrypTool 2.0 (Beta 4 - Build 3245.1) - April-29-2011 00:40:52 - 25.203.140 Byte - ZIP file EXE installer

CrypTool 2.0 (Beta 4 - Build 3161.1) - April-08-2011 14:33:17 - 25.257.834 Byte - ZIP file EXE installer
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