Previous Releases
Here you may download the previous public version of Open CASCADE Technology and auxiliary materials that will help you evaluate its extensive capabilities.
Versions of OCCT 6.7.0 and later are governed by GNU LGPL.
Publication date: 1 October 2019.
Open CASCADE Technology 7.4.0 is available under GNU Lesser General Public License (LGPL) version 2.1.
See Release Notes for details on content of the release.
On Windows you can install Open CASCADE Technology 7.4.0 with binaries pre-compiled by Visual Studio using the automatic installer:
- Installation instructions on Windows
- Windows installer VC++ 2017 64 bit: opencascade-7.4.0-vc14-64.exe (237 061 168 bytes)
The source package of Open CASCADE Technology 7.4.0 (including documentation, source files of samples and a set of building procedures) is available for all platforms. The building tools are provided in the form of CMake metafiles as a universal build tool for all supported platforms. In addition, pre-generated projects are provided for Visual Studio, Xcode, and Code::Blocks IDEs.
Download Open CASCADE Technology source package, tgz archive:
- opencascade-7.4.0.tgz (208 866 901 bytes)
Open CASCADE Technology documentation is included in both Windows installer and source packages. It also can be browsed online:
Please contact us for more information.
Publication date: 29 May 2018.
Open CASCADE Technology 7.3.0 is available under GNU Lesser General Public License (LGPL) version 2.1.
See Release Notes for details on content of the release.
On Windows you can install Open CASCADE Technology 7.3.0 with binaries pre-compiled by Visual Studio using the automatic installer:
- Installation instructions on Windows
- Windows installer VC++ 2010 64 bit: opencascade-7.3.0-vc10-64.exe (232 975 560 bytes)
- Windows installer VC++ 2017 64 bit: opencascade-7.3.0-vc14-64.exe (237 061 168 bytes)
The source package of Open CASCADE Technology 7.3.0 (including documentation, source files of samples and a set of building procedures) is available for all platforms. The building tools are provided in the form of CMake metafiles as a universal build tool for all supported platforms. In addition, pre-generated projects are provided for Visual Studio, Xcode, and Code::Blocks IDEs.
Download Open CASCADE Technology source package, tgz archive:
- opencascade-7.3.0.tgz (208 866 901 bytes)
Open CASCADE Technology documentation is included in both Windows installer and source packages. It also can be browsed online:
Please contact us for more information.
Publication date: 31 August 2017.
Open CASCADE Technology 7.2.0 is available under GNU Lesser General Public License (LGPL) version 2.1.
See Release Notes for details on content of the release.
On Windows you can install Open CASCADE Technology 7.2.0 with binaries pre-compiled by Visual Studio using the automatic installer:
- Installation instructions on Windows
- Windows installer VC++ 2010 64 bit: opencascade-7.2.0-vc10-64.exe (230 042 800 bytes)
The source package of Open CASCADE Technology 7.2.0 (including documentation, source files of samples and a set of building procedures) is available for all platforms. The building tools are provided in the form of CMake metafiles as a universal build tool for all supported platforms. In addition, pre-generated projects are provided for Visual Studio, Xcode, and Code::Blocks IDEs.
Download Open CASCADE Technology source package, tgz archive:
- opencascade-7.2.0.tgz (202 114 726 bytes)
Open CASCADE Technology documentation is included in both Windows installer and source packages. It also can be browsed online:
Please contact us for more information.
Publication date: 25 November 2016.
Open CASCADE Technology 7.1.0 is available under GNU Lesser General Public License (LGPL) version 2.1.
See Release Notes for details on content of the release.
On Windows you can install Open CASCADE Technology 7.1.0 with binaries pre-compiled by Visual Studio using the automatic installer:
- Installation instructions on Windows
- Windows installer VC++ 2010 64 bit: opencascade-7.1.0-vc10-64.exe (209 615 352 bytes)
The source package of Open CASCADE Technology 7.1.0 (including documentation, source files of samples and a set of building procedures) is available for all platforms. The building tools are provided in the form of CMake metafiles as a universal build tool for all supported platforms. In addition, pre-generated projects are provided for Visual Studio, Xcode, and Code::Blocks IDEs.
Download Open CASCADE Technology source package, tgz archive:
- opencascade-7.1.0.tgz (221 861 542 bytes)
Open CASCADE Technology documentation is included in both Windows installer and source packages. It also can be browsed online:
Please contact us for more information.
Publication date: 05 April 2016.
Open CASCADE Technology 7.0.0 is available under GNU Lesser General Public License (LGPL) version 2.1.
See Release Notes for details on content of the release.
On Windows you can install Open CASCADE Technology 7.0.0 with binaries pre-compiled by Visual Studio using the automatic installer:
- Installation instructions on Windows
- Windows installer VC++ 2010 64 bit: opencascade-7.0.0-vc10-64.exe (205 004 496 bytes)
- Windows installer VC++ 2013 64 bit: opencascade-7.0.0-vc12-64.exe (200 636 504 bytes)
The source package of Open CASCADE Technology 7.0.0 (including documentation, source files of samples and a set of building procedures) is available for all platforms. The building tools are provided in the form of CMake metafiles as a universal build tool for all supported platforms. In addition, pre-generated projects are provided for Visual Studio, Xcode, and Code::Blocks IDEs.
Download Open CASCADE Technology source package, tgz archive:
- opencascade-7.0.0.tgz (220 143 126 bytes)
Open CASCADE Technology documentation is included in both Windows installer and source packages. It also can be browsed online:
Please contact us for more information.
Publication date: 28 September 2015.
Open CASCADE Technology 6.9.1 is available under GNU Lesser General Public License (LGPL) version 2.1.
See Release Notes for details on content of the release.
On Windows you can install Open CASCADE Technology 6.9.1 with binaries pre-compiled by Visual C++ using the automatic installer:
- Installation instructions on Windows
- Windows installer VC++ 2010 64 bit: opencascade-6.9.1-vc10-64.exe (183 072 768 bytes)
- Windows installer VC++ 2013 64 bit: opencascade-6.9.1-vc12-64.exe (179 169 280 bytes)
The source package of Open CASCADE Technology 6.9.1 (including documentation, source files of samples and a set of building procedures) is available for all platforms. The building tools are delivered in the form of Visual C++ projects for Windows, Automake procedures for Linux, and Xcode projects for Mac OS X. In addition, CMake metafiles are provided as a universal build tool for all supported platforms.
Download Open CASCADE Technology source package, tgz archive:
- opencascade-6.9.1.tgz (209 590 272 bytes)
Open CASCADE Technology documentation included in both Windows installer and source packages:
- Browse Open CASCADE Technology documentation online
- Browse Open CASCADE Technology reference manual online
For modification of Open CASCADE Technology CDL classes you will need to use WOK:
- Installation and work with WOK
- Download WOK binary distribution: Windows, Mac OS and Linux
Please contact us for more information.
Publication date: 12 May 2015.
See Release Notes for details on content of the release.
On Windows you can install Open CASCADE Technology 6.9.0 with binaries pre-compiled by Visual C++ 2010 using the automatic installer:
- Installation instructions on Windows
- Windows installer: opencascade-6.9.0.exe (199 658 908 bytes)
The source package of Open CASCADE Technology 6.9.0 (including documentation, source files of samples and a set of building procedures) is available for all platforms. The building tools are delivered in the form of Visual C++ projects for Windows, Automake procedures for Linux, and Xcode projects for Mac OS X. In addition, CMake metafiles are provided as a universal build tool for all supported platforms.
Download Open CASCADE Technology source package, tgz archive:
- opencascade-6.9.0.tgz (203 915 299 bytes)
Open CASCADE Technology documentation included in both Windows installer and source packages:
- Browse Open CASCADE Technology documentation online
- Browse Open CASCADE Technology reference manual online
For modification of Open CASCADE Technology CDL classes you will need to use WOK:
- Installation and work with WOK
- Download WOK binary distribution: Windows, Mac OS and Linux
Publication date: 10 November 2014.
See Release Notes for details on content of the release.
On Windows you can install Open CASCADE Technology 6.8.0 with binaries pre-compiled by Visual C++ 2008 using the automatic installer:
- Installation instructions on Windows
- Windows installer: opencascade-6.8.0.exe (232 814 767 bytes)
The source package of Open CASCADE Technology 6.8.0 (including documentation, source files of samples and a set of building procedures) is available for all platforms. The building tools are delivered in the form of Visual C++ projects for Windows, Automake procedures for Linux, and Xcode projects for Mac OS X. In addition, CMake metafiles are provided as a universal build tool for all supported platforms.
Download Open CASCADE Technology source package, tgz archive:
- opencascade-6.8.0.tgz (198 312 319 bytes)
Open CASCADE Technology documentation included in both Windows installer and source packages:
For modification of Open CASCADE Technology CDL classes you will need to use WOK:
- Installation and work with WOK
- Download WOK binary distribution: Windows, Mac OS and Linux
Publication date: 30 April 2014.
See Release Notes for details on content of the release.
On Windows you can install Open CASCADE Technology 6.7.1 with binaries pre-compiled by Visual C++ 2008 using the automatic installer:
- Installation instructions on Windows
- Windows installer: opencascade-6.7.1.exe (172 852 647 bytes)
The source package of Open CASCADE Technology 6.7.1 (including documentation, source files of samples and a set of building procedures) is available for all platforms. The building tools are delivered in the form of Visual C++ projects for Windows, Automake procedures for Linux, and Xcode projects for Mac OS X. In addition, CMake metafiles are provided as a universal build tool for all supported platforms.
Download Open CASCADE Technology source package, tgz archive:
- opencascade-6.7.1.tgz (194 533 180 bytes)
Open CASCADE Technology documentation included in both Windows installer and source packages.
For modification of Open CASCADE Technology CDL classes you will need to use WOK:
- Installation and work with WOK
- Download WOK binary distribution: Windows, Mac OS and Linux
Publication date: 18 December 2013.
See Release Notes for details on content of the release.
On Windows you can install Open CASCADE Technology 6.7.0 with binaries pre-compiled by Visual C++ 2008 using the automatic installer:
- Installation instructions on Windows
- Windows installer: opencascade-6.7.0.exe (198 998 141 bytes)
The source package of Open CASCADE Technology 6.7.0 (including documentation, source files of samples and a set of building procedures) is available for all platforms. The building tools are delivered in the form of Visual C++ projects for Windows, Automake procedures for Linux, and Xcode projects for Mac OS X. In addition, CMake metafiles are provided as a universal build tool for all supported platforms.
Download Open CASCADE Technology source package, tgz archive:
- opencascade-6.7.0.tgz (223 046 512 bytes)
Open CASCADE Technology documentation included in both Windows installer and source packages.
For modification of Open CASCADE Technology CDL classes you will need to use WOK:
- Installation and work with WOK
- Download WOK binary distribution: Windows, Mac OS and Linux
Please note that Open CASCADE Technology version 6.6.0 and earlier are governed by proprietary OCCT Public License.
Publication date: 22 April 2013.
Open CASCADE Technology 6.6.0 can be installed with binaries pre-compiled by Visual C++ 2008 using the Installation Procedure under Windows platform only.
See Release Notes for details on content of the release.
To install Open CASCADE Technology and WOK, please, refer to the following pages for information:
Download Open CASCADE Technology installation procedure for Windows:
- OpenCASCADE660.exe (106 473 580 bytes)
Download Open CASCADE Technology Doxygen documentation installation procedure for Windows:
- OCCTDocumentation660.exe (33 373 621 bytes)
The source package of Open CASCADE Technology 6.6.0 (including documentation, source files of samples and a set of building procedures) is available for all platforms. The building tools are delivered in the form of Visual C++ projects for Windows, Automake procedures for Linux, and Xcode projects for Mac OS X. In addition, CMake metafiles are provided as a universal build tool for all supported platforms.
Download Open CASCADE Technology source package, tgz archive:
- OpenCASCADE660.tgz (119 153 607 bytes)
Publication date: 29 March 2013.
Open CASCADE Technology 6.5.5 can be installed with binaries pre-compiled by Visual C++ 2008 using the Installation Procedure under Windows platform only.
See Release Notes for details on content of the release.
To install Open CASCADE Technology and WOK, please, refer to the following pages for information:
Download Open CASCADE Technology installation procedure for Windows:
- OpenCASCADE655.exe (124 435 080 bytes)
Download Open CASCADE Technology Doxygen documentation installation procedure for Windows:
- OCCTDocumentation655.exe (42 549 394 bytes)
The source package of Open CASCADE Technology 6.5.5 (including documentation, source files of samples and a set of building procedures) is available for Unix and Windows platforms. The building tools are delivered in the form of Visual C++ Projects for Windows platform and a Makefile procedure for Unix platform.
Download Open CASCADE Technology source package, tgz archive:
- OpenCASCADE655.tgz (146 901 035 bytes)
Download experimental Open CASCADE Technology WOK binary distribution:
Publication date: 13 November 2012.
Open CASCADE Technology 6.5.4 can be installed with binaries pre-compiled by Visual C++ 2008 using the Installation Procedure under Windows platform only.
See Release Notes for details on content of the release.
To install Open CASCADE Technology and WOK, please, refer to the following pages for information:
Download Open CASCADE Technology installation procedure for Windows:
- OpenCASCADE654.exe (120 006 926 bytes)
Download Open CASCADE Technology Doxygen documentation installation procedure for Windows:
- OCCTDocumentation654.exe (56 386 624 bytes)
The source package of Open CASCADE Technology 6.5.4 (including documentation, source files of samples and a set of building procedures) is available for Unix and Windows platforms. The building tools are delivered in the form of Visual C++ Projects for Windows platform and a Makefile procedure for Unix platform.
Download Open CASCADE Technology source package, tgz archive:
- OpenCASCADE654.tgz (162 714 803 bytes)
Download experimental Open CASCADE Technology WOK binary distribution:
Publication date: 24 April 2012.
Open CASCADE Technology 6.5.3 can be installed with binaries pre-compiled by Visual C++ 2008 using the Installation Procedure under Windows platform only.
See Release Notes for details on content of the release.
To install Open CASCADE Technology and WOK, please, refer to the following pages for information:
Download Open CASCADE Technology installation procedure for Windows:
- OpenCASCADE653.exe (102 531 072 bytes)
Download Open CASCADE Technology Doxygen documentation installation procedure for Windows:
- OCCTDocumentation653.exe (44 342 218 bytes)
The source package of Open CASCADE Technology 6.5.3 (including documentation, source files of samples and a set of building procedures) is available for Unix and Windows platforms. The building tools are delivered in the form of Visual C++ Projects for Windows platform and a Makefile procedure for Unix platform.
Download Open CASCADE Technology source package, tgz archive:
- OpenCASCADE653.tgz (152 198 356 bytes)
Download experimental Open CASCADE Technology WOK binary distribution:
Publication date: 12 December 2011.
Open CASCADE Technology 6.5.2 can be installed with binaries pre-compiled by Visual C++ 2008 using the Installation Procedure under Windows platform only.
See Release Notes for details on content of the release.
Download Open CASCADE Technology installation procedure for Windows:
- OpenCASCADE652.exe (70 000 910 bytes)
Extract the files into any directory and open the readme.html file if you need help.
Download Open CASCADE Technology Doxygen documentation installation procedure for Windows:
- OCCTDocumentation652.exe (97 635 431 bytes)
The source package of Open CASCADE Technology 6.5.2 (including documentation, source files of samples and a set of building procedures) is available for Unix and Windows platforms. The building tools are delivered in the form of Visual C++ Projects for Windows platform and a Makefile procedure for Unix platform.
Download Open CASCADE Technology source package, tgz archive:
- OpenCASCADE652.tgz (219 755 641 bytes)
Publication date: 16 June 2011.
Open CASCADE Technology 6.5.1 can be installed with binaries pre-compiled by Visual C++ 2008 using the Installation Procedure under Windows platform only.
See Release Notes for details on content of the release.
Download Open CASCADE Technology installation procedure for Windows:
- OpenCASCADE651.exe (67 944 320 bytes)
Download Open CASCADE Technology Doxygen documentation installation procedure for Windows:
- OCCTDocumentation651.exe (97 700 836 bytes)
The source package of Open CASCADE Technology 6.5.1 (including documentation, source files of samples and a set of building procedures) is available for Unix and Windows platforms. The building tools are delivered in the form of Visual C++ Projects for Windows platform and a Makefile procedure for Unix platform.
Download Open CASCADE Technology source package, tgz archive:
- OpenCASCADE651.tgz (213 777 485 bytes)
Please contact us for more information.
