Guide to Offline Extension Installation in Altium Designer Installing extensions in Altium Designer typically relies on an active internet connection to reach Altium’s cloud repositories. However, for systems in high-security environments, behind strict firewalls, or without internet access, you can perform an using a dedicated offline installer package. 1. Acquire the Offline Installer Package
Transfer this ZIP file (typically ~3GB) to your offline machine via a USB drive or local network and unzip it to a known directory. 2. Configure Altium Designer for Offline Use
: The "Offline installation" setting does not automatically check for updates. To update an extension or the core platform, you must obtain a newer version of the Offline Installation package. altium extension offline install
Download the image for your specific version of Altium Designer. This file is typically a large ISO image or a ZIP file containing the full installation repository.
Safely eject the drive and connect it to the target offline PC. Guide to Offline Extension Installation in Altium Designer
Switch to the or Available tabs. Because you mapped the local repository, you will see a list of extensions available in your offline package.
You must have administrative access on the offline Altium workstation to modify installation paths and system settings. Acquire the Offline Installer Package Transfer this ZIP
The download will typically consist of a core executable installer and a massive set of setup files containing all available extensions.
Expand the folder and select Installation Management . Locate the Repository Location settings. Change the source from Altium Cloud to Local Folder .
Altium will now read from the local folder instead of the online repository.
To bypass this restriction, you must use one of two main methods: