Privacy Policy

Last updated: March 27, 2026

Overview

Probe is a local HTTP/HTTPS debugging proxy. We are committed to protecting your privacy. This policy explains what data Probe handles and how it is treated.

Data That Stays on Your Device

Probe operates entirely on your local machine. All captured network traffic, certificates, settings, and session data are stored locally and never leave your device. Specifically:

  • Network traffic — HTTP/HTTPS requests and responses captured by the proxy are stored only in local memory or local session files on your computer.
  • CA certificates — Generated locally and stored in your home directory (~/.probe/). Private keys never leave your machine.
  • Settings and preferences — Stored locally via system preferences. Not synced or uploaded anywhere.
  • Saved sessions and collections — Stored as local files on your computer.

Data We Do Not Collect

Probe does not:

  • Send any captured traffic to external servers
  • Collect analytics, telemetry, or usage statistics
  • Track your browsing activity
  • Require an account or login
  • Use cookies or tracking technologies
  • Share any data with third parties

Network Connections

Probe makes the following outbound network connections:

  • Update checks — On launch, Probe checks for new versions via a GitHub Gist. This request contains no personally identifiable information.
  • Proxied traffic — When the proxy is running, Probe forwards HTTP/HTTPS requests from your configured devices to their intended destinations.
  • CA certificate server — Probe runs a local HTTP server (default port 9098) to serve the CA certificate to devices on your local network.

Upstream Proxy

If you configure an upstream proxy, Probe routes traffic through that proxy server. Credentials you enter for upstream proxy authentication are stored locally and sent only to the configured proxy server.

Security Considerations

Probe performs HTTPS interception (MITM) to inspect encrypted traffic. This means:

  • Probe generates a local Certificate Authority (CA) that you install on your devices.
  • Probe can see the decrypted contents of HTTPS traffic routed through it.
  • This data is only visible within the Probe app on your machine and is not transmitted elsewhere.
  • You should only use Probe on networks and devices you own or have permission to debug.

Children's Privacy

Probe is a developer tool and is not directed at children under 13. We do not knowingly collect any personal information from anyone, including children.

Changes to This Policy

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

Contact

If you have questions about this privacy policy, please contact us at vinhtnk@guide.inc or open an issue on our GitHub repository.