Altera Quartus Ii 13.0 Free Download May 2026

Even the free Web Edition requires a license file. Here is how to generate one:

  • Visit Intel’s Self-Service Licensing Center:

  • Download the license file (license.dat). Save it to a permanent location (e.g., C:\altera\13.0\license.dat).

  • Point Quartus to the license:

    • Troubleshooting: If you get "Invalid license" errors, ensure the NIC ID matches your primary adapter. Disable virtual adapters (VirtualBox, VPN) temporarily.

    It is crucial to distinguish between "free as in beer" (gratis) and "free as in freedom" (open source). Quartus II 13.0 is not open source, but Intel (the current rights holder) provides a legitimate free version known as the "Web Edition."

    To legally download Quartus II 13.0 for free: altera quartus ii 13.0 free download

    Warning regarding third-party sites: Many websites and YouTube tutorials link to "cracked" or "pre-activated" versions hosted on file-sharing platforms. Downloading software from these sources is strongly discouraged. Not only does it violate Intel’s copyright and license agreement, but it also exposes your system to malware, trojans, or modified binaries that could compromise your projects or personal data. Intel’s own archive is the only safe and legal source.

    If you are working with older Altera (now Intel) FPGA families like the Cyclone II, Cyclone III, or MAX II, you have likely discovered that the newest versions of Quartus Prime no longer support these chips. The last version to fully support them is Quartus II 13.0 SP1.

    This post will guide you on how to legally download the free Web Edition of Quartus II 13.0. Even the free Web Edition requires a license file

    This is the most critical section. Many websites claim to offer "Altera Quartus II 13.0 free download," but third-party sites may bundle malware, adware, or outdated files. Always download directly from Intel’s official website.

    While this version is excellent for legacy devices, consider these alternatives if you use newer FPGAs:

    | Software | Best For | Free? | |----------|----------|-------| | Quartus Prime Lite 18.1+ | Cyclone V, Cyclone 10 LP, MAX 10 | Yes | | Quartus Prime Standard Edition | Arria V, Cyclone V, Stratix V | Paid | | Quartus Prime Pro Edition | Stratix 10, Agilex | Paid | | Vivado HLx (Xilinx) | Xilinx FPGAs (non-Altera) | Free WebPack | Visit Intel’s Self-Service Licensing Center :

    If you are still using Cyclone II, Quartus II 13.0 remains your only official option.

    Fix: Right-click the desktop icon → Properties → Compatibility → Run this program in compatibility mode for Windows 7. Also check "Run as Administrator".

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