A prompt will appear at the top of the page. Click .
Extract the files to a permanent directory on the local hard drive (e.g., C:\Altium_Offline_Extensions ). Step 3: Point Altium to the Local Source Open Altium Designer on the offline computer. Navigate to > System > Installation Management .
The Offline Installer package you downloaded in Step 1 comes with a vast number of extensions already inside it. However, it will not install them all by default. To enable a specific extension that is present in the package but not yet installed: altium extension offline install
: When you select an extension for offline export, the tool automatically identifies and bundles all required dependencies, sub-plugins, and specific version requirements into one file. One-Click Integrity Verification
: The feature creates a "restore point" before the offline installation. If the new extension causes stability issues in the offline environment, the user can instantly revert to the previous configuration without needing to re-image the software. License Pre-Leasing A prompt will appear at the top of the page
If you have access to a secondary computer running the same version of Altium Designer with internet access, you can capture the raw installation files.
to receive a specific download link, typically hosted on Amazon AWS. Support & Community : Users on Step 3: Point Altium to the Local Source
| Issue | Likely Cause | Solution | |-------|--------------|----------| | Extension not found | Wrong Altium version | Download extension matching exact Altium build number | | Missing dependencies | Not all prerequisite extensions downloaded | Download entire dependency tree (use --include-dependencies flag) | | “Invalid license” | Licensing service offline | Ensure network license server is accessible or use standalone license | | Installation fails silently | Corrupted .alf file | Re-download extension and verify hash |