Altera Quartus Ii 8.1 Web Edition -windows- Free Download _verified_ Jun 2026

Since Intel no longer hosts this version, you must locate a trusted archive. Use caution—old software may lack security patches.

Improved algorithms claimed to deliver high-density FPGA compile times up to three times faster than competitors at the time. Altera Quartus II 8.1 Web Edition -Windows- free download

Run the setup in Windows 7 compatibility mode. Right-click .exe > Properties > Compatibility > “Run this program in compatibility mode for Windows 7”. Since Intel no longer hosts this version, you