Licences for the product you installed

The VS Code extension and the standalone Windows and Linux apps use the same ASysT licence. Required third-party notices and licence texts are included inside each distribution.

Which licence applies to my installation?

The download channel changes how ASysT reaches you, not the legal terms inside the product.

What you use Licence
ASysT Rendering for VS Code
Marketplace extension
ASysT End-User License Agreement (Free & Pro)
ASysT Rendering for Windows
Standalone zip
The same ASysT End-User License Agreement
ASysT Rendering for Linux
Standalone x64 tar.gz
The same ASysT End-User License Agreement
This website The site explains and distributes ASysT; it is not the licence for the installed software. Unless identified as third-party material, its text and assets are © 2026 asyst.rendering, all rights reserved — publisher details on the mentions légales page.

The ASysT licence in plain words

ASysT Rendering itself is proprietary software, not open source. The EULA covers ASysT-authored product code, documentation and demo models. Bundled third-party materials keep their own licences, supplied with each distribution.

  • Free covers personal use, learning and internal evaluation. Production or commercial use requires an appropriate key.
  • Pro is licensed to the named user or designated number of users in the key; expiry falls back to Free without deleting models or renderings.
  • Your models remain yours. Explicit local modeling actions may update .sysml only through revision checks, whole-model validation and atomic replacement; ASysT does not upload them.
  • Redistribution, reverse engineering and bypassing licence gates or watermarks are restricted.
The full text controls. This summary is only a reading aid. Read the complete ASysT End-User License Agreement that also ships as LICENSE.txt inside every distribution.