Privacy Policy
ViewGraph Browser Extension Last updated: April 13, 2026

Summary
ViewGraph does not collect, transmit, or store any personal data. All captured data stays on your local machine.

What Data the Extension Accesses
When you click the ViewGraph toolbar icon on a page, the extension reads:

DOM structure (HTML elements, attributes, computed styles)

Element bounding boxes and layout information

Accessibility attributes (ARIA roles, labels)

Network request status (success/failure, not request bodies)

Console errors and warnings

Your annotations (comments you type, severity, category)

Where Data Goes
All captured data is sent only to a server running on your local machine (localhost, ports 9876-9879). The extension never contacts external servers, cloud services, or third-party APIs.

The data flow:

Copy
Browser extension -> localhost MCP server -> .viewgraph/captures/ on your disk
What We Do NOT Collect
No personal information

No browsing history

No cookies or authentication tokens from visited pages

No request or response bodies

No data sent to external servers

No analytics or telemetry

No user accounts or registration

Data Storage
User preferences (capture settings, auto-capture toggle) are stored in chrome.storage.local and chrome.storage.sync, both local to your browser

DOM captures are stored as JSON files in your project's .viewgraph/captures/ directory

Screenshots are stored alongside captures on your local disk

Third-Party Services
ViewGraph uses no third-party services, analytics, or tracking. The extension is fully self-contained.

Permissions
Permission
Why it's needed
activeTab

Access the current tab's DOM when you click the ViewGraph icon

storage

Save your preferences locally across browser sessions

scripting

Inject the capture script into the active tab on your click

Open Source
ViewGraph is open source (AGPL-3.0). You can inspect the full source code at github.com/sourjya/viewgraph.

Contact
For privacy questions, open an issue on GitHub.

Changes
If this policy changes, the updated version will be posted here with a new "last updated" date.

Source: https://chaoslabz.gitbook.io/viewgraph/reference/privacy-policy