Altium Extension Offline — Install ((new))
: Click the "Need Offline Installer?" link. You will follow prompts to send a request to Altium.
How to Perform an Altium Extension Offline Installation In many professional environments—especially those involving high-security government contracts, aerospace, or defense—workstations are kept strictly offline (air-gapped) to prevent data leaks. This poses a challenge when you need to install essential Altium Designer extensions like the , Manufacturer Part Search , or various simulation tools.
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: Some extensions require validation against your Altium license. Ensure your offline standalone license ( .alf file) or local private license server is properly configured, or the extensions may remain locked despite being physically installed.
Restart Altium Designer to complete the installation process. : Click the "Need Offline Installer
If you are performing a fresh install on an offline machine, you can include extensions within the setup package itself.
Which (e.g., specific country component importers, simulation tools) are you trying to install? This poses a challenge when you need to
An offline extension install refers to the process of acquiring an extension (a .zip or specific extension file) from a machine with internet access and transferring it to an isolated Altium Designer workstation. This allows users to add functionality—such as additional output generators, simulation models, or specialized design rules—without needing to connect to the Altium cloud. Prerequisites An existing offline installation of Altium Designer. A USB drive or secure network transfer mechanism.
You must tell Altium Designer to look at your local folder instead of the Altium Cloud for new extensions. Open Altium Designer and navigate to DXP > Preferences (or click the gear icon). System > Installation Local Installation Source section, select the radio button for "Offline installation" Use the browse button (
With the path set, the software will now treat your local folder as the primary repository.