Install: Altium Extension Offline

: Log in to your Altium Live Account on the Altium Downloads page . Look for the link that says "Need offline installer?" beneath the primary download button.

Apply license or activation if required.

The "Offline installation" setting prevents Altium from checking for new online updates. To update extensions later, you must download a newer version of the entire Offline Installer package.

Download the extension package on a machine with internet. altium extension offline install

In the section, you will see a text field to specify the path to your additional software modules.

: Use your Altium Live account to download the Offline Installer executable.

After the installation completes, restart Altium Designer to activate the new functionality. 4. Important Considerations : Log in to your Altium Live Account

There are two main categories of extensions:

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X2.exe /InstallExtension "C:\OfflineExtensions\Simulation.alf_ext" /Silent In the section, you will see a text

Altium Designer is built around a connected ecosystem. The primary method for adding features (extensions) is through the view, which connects to the Altium Content Vault. For users behind strict firewalls, air-gapped networks, or those maintaining a controlled software baseline, the online installer is not an option. The offline process requires manually bridging the gap between the software and the localized files.

Ensure the unzipped folder containing the extension files is correctly recognized by Windows and not blocked by local security policies.

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.

Individual design engineers must point their Altium instances to the local company server.

Method 1: Installing via the Offline Installer Package (Recommended for Standalone PCs)