Public beta
Fourlayer beta terms
Last updated: 24 August 2026
Beta status
Fourlayer is an early-access visual C4 architecture editor. Features, availability, and stored-workspace behavior may change while the beta is evaluated.
Your account and workspaces
Use your account only for work you are allowed to model and share. You remain responsible for the accuracy of diagrams, exports, and collaborator access you create.
Acceptable use
Do not use Fourlayer to disrupt the service, bypass account controls, upload unlawful content, or attempt to access another person's workspace.
Changes and feedback
We may change or remove beta features as we learn from real use. Export important work and keep your own copy before relying on a beta workflow.
Privacy
Read the Fourlayer privacy notice to understand the information handled by the beta.
This public-beta draft describes the product as it is currently implemented and is pending legal review.