Privacy Policy

Next API Capture (Chrome extension) · Last updated: June 23, 2026

Next API Capture is a developer tool that displays the API/network calls made by a Next.js application you run locally, inside Chrome DevTools. This policy explains what it does with data. The short version: it collects nothing.

Data we collect

None. The extension does not collect, transmit, sell, rent, or share any personal information or user data. We operate no servers, and the extension contains no analytics, tracking, or advertising.

How your data is handled

• Captured request/response data is sent from your own locally-running application to the extension over a loopback WebSocket (127.0.0.1) and is shown only in your browser's DevTools. It never leaves your machine and is never sent to us or any third party.
• The extension stores only your local connection settings — the dev WebSocket port and an optional token — using chrome.storage.local on your own device, so they persist across restarts.

Permissions

• storage — persist your local connection settings across MV3 service-worker restarts.
• alarms — periodically reconnect the local WebSocket, since MV3 service workers go idle.
• Host access to http://localhost/* and http://127.0.0.1/* — content scripts run only on local development origins to relay client-side calls and read the SSR-injected capture snapshot. No remote, third-party, or production sites are accessed.

Changes to this policy

We may update this policy from time to time. Any changes will be posted on this page with an updated date.

Contact

Questions about this policy or the extension? Open an issue at github.com/yeo11200/next-api-capture/issues.