Privacy
Last updated: April 2026
sum.md does not sell, share, or monetize your data. This policy explains exactly what we collect, how it is used, and how you control it.
Data We Process
We collect only what is necessary to operate the service:
- Email address and authentication credentials
- Content you explicitly save — URLs, titles, and extracted text
- Derived metadata: AI-generated summaries, tags, and vector embeddings
- Timestamps and entry source type
We do not track your browsing activity beyond pages you actively choose to save.
Your Content
Entries are stored in an isolated per-account workspace and are never visible to other users. AI-generated summaries and embeddings are derived from your content and stored alongside it — they exist solely to power search and context retrieval within your account.
Extension Behavior
The browser extension stores your API key in local browser storage. When you save a page, it transmits only the URL, title, and extracted content to sum.md over HTTPS. No data is collected passively; the extension takes action only when you explicitly trigger a save.
Sessions & Credentials
Authentication sessions are managed via secure HTTP-only cookies. API keys and OAuth tokens are displayed once on creation and not stored in recoverable form. You can revoke any credential from the Settings page at any time; revocation takes effect immediately.
AI Pipeline
Content you save is processed server-side by third-party AI models to generate summaries, tags, and embeddings. Your content is not used to train external models, and processing occurs only within the sum.md infrastructure boundary.
Infrastructure Partners
- Supabase — database, auth, and storage
- Vercel — hosting and edge delivery
- AI providers — summary and embedding generation
Each provider processes data only as needed to deliver sum.md functionality. We do not grant partners access beyond what is required for their role.
Data Controls
- Delete any entry at any time from Entry
- Revoke API keys and OAuth sessions from Settings
- Request full account deletion — all data is permanently removed