Altium Extension Offline Install Now

In the "Extensions and Updates" tab, look for the "Import" or "Install from File" option (usually found under the gear icon or a drop-down menu in the top right). Select and Run: Browse to your file and follow the prompts. Troubleshooting Common Issues

Extensions are highly version-specific. If you download an offline repository for Altium Designer 24, it will not install correctly on Altium Designer 23. Always match the repository build version with your installed software build.

Click the (top right of the Extensions page) to open the Installation Manager Preferences . In the Source section, uncheck the Altium Cloud option. Check the box for Local Installation Repository . altium extension offline install

Are you managing a or setting this up for an entire team / network ? Share public link

You must also perform an via the Altium License Management tool. Download a .alf license file from the Altium Licensing Portal (using a connected machine), transfer it via USB, and manually add it in Extensions & Updates > License Management > Add Standalone License File .

This guide provides a step-by-step walkthrough for performing an offline installation of Altium extensions, ensuring your design environment remains fully functional without risking network security. Prerequisites Before You Begin Log in to your account on the Altium Downloads page

: This feature is specifically designed for users behind strict firewalls or on production computers with zero network connectivity. How to Access the Offline Installer

If you only need one or two specific extensions, you can sometimes find standalone .mpc (Manage Platform Content) files.

Installing extensions in Altium Designer usually requires an active internet connection to connect directly to the Altium Cloud vault. However, secure engineering environments, isolated laboratory networks, and strict corporate firewalls often require offline installation methods. Click the (top right of the Extensions page)

: A major drawback is that the software will not automatically check for updates. To update or add new extensions later, you must download a completely new Offline Installation Package Acquisition and Accessibility

Use the browse button to select the folder where you unzipped the offline installation package.

A: No. Never. Altium extensions are build-specific. Attempting this will corrupt the target installation, often requiring a full Altium reinstall.