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
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.
Go to (or click the user icon at the top right and select Extensions & Updates). altium extension offline install
Beyond security, offline installation ensures . By using a local repository, every designer on your team installs the exact same extension version, preventing compatibility issues during complex PCB hand-offs.
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. If you can’t simply hit "update" within the
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
Click the button (the gear icon) in the top right corner. Go to (or click the user icon at
You should now see a list of extensions available from your local source.
Since your target machine has no internet access, you must first use a computer with an active connection to gather the necessary files.
Click the (download icon) next to the specific extension you need (e.g., Draftsman or KiCad Importer ).