Effective March 2026. Your privacy and diagram data sovereignty are fundamental.
1. Information We Collect
We collect minimal information necessary to deliver system diagramming capabilities:
Authentication Data: When signing in with Google OAuth, we receive your account identifier, email address, and profile picture.
Diagram Data: Architecture components, nodes, edges, C4 hierarchies, and notes are saved to your project space.
Local AI Keys: API keys for OpenAI, Anthropic, or Google Gemini are stored locally on your device in browser localStorage and never transmitted to our servers.
2. How Your Data Is Used
Your data is exclusively utilized to:
Persist and sync your architecture diagrams across devices.
Authenticate your workspace access securely.
Export diagrams to PNG, SVG, Mermaid, Terraform, and Structurizr formats.
3. Data Storage & Security
We utilize Supabase PostgreSQL with Row Level Security (RLS) for cloud persistence. You may also operate without signing in to keep all diagram assets in local browser memory.