If you encounter errors, set the compatibility mode to "Windows XP (Service Pack 3)".
. While it was originally distributed for free, it has since been discontinued and is no longer directly supported by Intel (who acquired Altera). Design And Reuse Overview and Features
At least 2.5 GB of free space for the core installation. Display: 1024 x 768 minimum resolution with 16-bit color. Supported Device Families
Quartus II Installation & Licensing for Windows and Linux Workstations Altera Quartus II 8.1 Web Edition -Windows- free download
Note: While not officially supported, some users report successful operation on or Windows 10 in compatibility mode.
⚠️ Quartus II 8.1 is a 32-bit application. While it can run on 64-bit versions of Windows, you may encounter stability or compatibility issues on modern OS like Windows 10 or 11.
The software requires minimal system resources compared to modern tools, running efficiently on 1 GB of RAM and requiring roughly 2 GB to 3 GB of free hard drive space. The Design and Development Workflow If you encounter errors, set the compatibility mode
Unlike the Subscription Edition of the software, the of Quartus II 8.1 was released as free software. It does not require a paid software license file ( license.dat ) or a network license server to compile designs for supported target devices like the Cyclone II or MAX II. You can run the compiler immediately upon completing the installation wizard.
If you are struggling with a specific installation step or looking for a particular device family,
Ensure you select the device families you need (e.g., Cyclone II) during the installation process. Design And Reuse Overview and Features At least 2
Modern IDEs require massive amounts of RAM and CPU power. Quartus II 8.1 runs comfortably on older Windows machines (Windows XP/7/10) and is much faster for smaller, simpler designs.
One of the most important changes in Quartus II 8.1 was its licensing model. , even the Web Edition required a separate license file that could be obtained from Altera’s website. Beginning with version 8.1, no license file is required for the Quartus II Web Edition , and this policy continues for all subsequent free editions.