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Associate
December 11, 2025
Question

STM32CubeIDE for Visual Studio - Offline Mode

  • December 11, 2025
  • 3 replies
  • 789 views

As I understand it, this extension only works online? If there’s no internet, the extension stops working. Is there a solution for this or…

3 replies

KnarfB
Super User
December 11, 2025

No. Why do you think so?

Once the installation is completed and all relevant software bundles are downloaded, you may get a decent warning that you are working offline, but you can continue.

hth

KnarfB

Associate
December 11, 2025

I will try to describe the problem.

Everything is installed: compilers, debuggers. But as soon as you turn off the Internet, create a CMake project in CubeMX, and then open it in VS Code, everything breaks and dies; the CMake manager can't load the project. So it turns out that STM CubeIDE for VS Code is useless without the Internet.

KnarfB
Super User
December 11, 2025

Again: no. Works on my system. You may see some messages/warnings in the beginning, but eventually I can create a new CubeMX CMake project, build it in VCS and even debug it on my board. 

 

Cartu38 OpenDev
Graduate II
December 12, 2025

@HaritonUlianaYakov 
See https://community.st.com/t5/stm32cubeide-for-visual-studio/connectivity-issues-of-stm32cubeide-for-vscode/td-p/861871
"For now, please consider that this solution requires an active internet connection."

Associate
December 16, 2025

Launched in full offline mode. For this, you need to manually specify bundles.store. For debugging, the svd, dfp packs cmsis files must be downloaded. To run debugging offline, you need to manually specify the path to the SVD files, as well as to CubeProgrammer and the Stlink GDB server.