This version of Quartus II software will no longer be available after 6/26/2020. This version does not include the latest functional and security updates and will not be supported. All versions are provided as is. Intel recommends that users of this version uninstall and discontinue use as soon as possible. Users should upgrade to the latest available software version for their device and follow the technical recommendations to help improve security.
IMPORTANT: If you use a pop-up blocker, you must disable it to download a file.
To download and uncompress all files (Quartus II, MegaCore IP Library, Nios II, and ModelSim) requires 4 Gbytes of free disk space. Installation requires an additional 5 Gbytes of disk space. You can delete the 4 Gbytes of download and uncompressed files from your hard drive after installation is complete.
Beginning with version 5.1, the Quartus II Web Edition software no longer supports Windows NT.
Important Critical Issue Notice for all Quartus II software version 6.1 users using one or more instances of the ALTMEMPHY megafunction or the DDR/DDR2 high performance controller MegaCore function.
The Quartus II Web Edition software includes support for selected MAX® II, Cyclone® II, Cyclone, Stratix® II, Stratix, APEX™ II, APEX 20KE, ACEX®, Excalibur™, FLEX® 10KE, FLEX 10K®, FLEX 10KA, FLEX 6000, MAX 7000S, MAX 7000B, MAX 7000AE, and MAX 3000A devices.
If the design includes VHDL or Verilog code, you can use third-party synthesis software from Mentor Graphics, Synopsys, or Synplicity or the integrated VHDL and Verilog synthesis included in the Quartus II Web Edition software.
Support - The Quartus II Software Support page can help with questions or problems that are not answered by the information provided here or in Quartus II Help. If you have a question or problem that is not answered by the information provided here, get help from Intel Premier Support.