Altium Extension Offline Install Updated Guide

Ensure you have the main offline installer for your specific version of Altium Designer. Extensions are often version-specific.

Altium uses a "Local Installation Service" to mimic the cloud repository. You need to point your software to your local files instead of Altium’s servers.

In the path field, browse to the folder on your USB or network drive where you stored the offline repository files. Phase 3: Installing the Extension altium extension offline install

If you can’t simply hit "update" within the software, here is the step-by-step guide to managing an Altium extension offline installation. Phase 1: Preparing the Offline Installation Files

Click the button (the gear icon) in the top right corner. Ensure you have the main offline installer for

You should now see a list of extensions available from your local source.

Once the path is set, Altium will "see" the extensions available in that folder as if they were live on the web. Stay in the tab. Click on the Purchased or Installed sub-tab. You need to point your software to your

If the extension doesn't appear, verify that the offline package version matches your installed Altium Designer build (e.g., AD24 files won't work with AD23).