CaptureProof Pro
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Privacy policy

CaptureProof Pro browser extension · Last updated 27 July 2026

Summary. CaptureProof Pro handles the contents of the pages you explicitly choose to capture. All of that handling happens on your own device. The extension makes no network requests of any kind, has no server, and transmits nothing to us or to anyone else. Nothing is sold, shared, or retained after you close the editor.

1. Who this covers

This policy applies to the CaptureProof Pro extension for Google Chrome and Chromium-based browsers, distributed through the Chrome Web Store. It does not cover any website you choose to capture with it, which remains governed by that site's own policy.

2. What the extension handles

To do its job, the extension necessarily processes the contents of pages you explicitly ask it to capture. Here is everything it touches and what becomes of it.

DataWhyWhere it goes
Pixels of the page you capture To build the screenshot Held in memory and in your browser's local storage only long enough to pass the capture from the background worker to the editor tab, then deleted immediately
Text of the page you capture To find patterns that look sensitive, and their position on screen Read in the page, matched against patterns locally, never copied out of your browser
Page URL, title and capture time To record provenance on the exported proof report Written into the file you export, and nowhere else
Your annotations, notes and report title To build the export Held in the editor tab only, discarded when you close it

3. What is never transmitted, retained, or gathered

Because a captured page can contain anything, the extension may process personal, financial, or authentication details that happen to appear on it — that is precisely what the detection feature exists to find. None of it goes anywhere.

Nothing is transmitted off your device, in any form, at any time.
No account, sign-in, email address or user profile is requested or created.
No analytics, telemetry, crash reporting or usage statistics.
No advertising identifiers, cookies or cross-site tracking.
No browsing history, and no record kept of which pages you capture.
Nothing is retained after the editor tab is closed.
Nothing is ever sold, rented, or shared.

4. No transmission

The extension contains no code that opens a network connection. It has no backend service, no API endpoint, and no third-party SDK, library, or tracker embedded in it. Nothing is uploaded, because there is nowhere for it to be uploaded to. You can confirm this by inspecting the extension's source, which is plain, unobfuscated JavaScript.

5. Storage and retention

The extension uses chrome.storage.local as a one-shot handoff. The background worker writes the capture there, the editor tab reads it, and the editor deletes it in the same step, before you interact with anything. Nothing is retained between sessions. Uninstalling the extension removes any remaining extension storage.

Files you export are saved to your device through your browser's normal download behaviour, and are yours to manage.

6. Permissions and why each is needed

PermissionReason
activeTab Access the page you are capturing, only for the tab you are on and only after you click the toolbar button.
scripting Run the capture and detection helpers inside that page.
storage The one-shot handoff described above.
unlimitedStorage A full-page capture of a long page can exceed the default storage quota during that handoff.

The extension requests no host permissions, so it cannot read or act on any page you have not explicitly asked it to capture.

7. Third parties

There are none. No data is sold, rented, shared, or disclosed to anyone, for any purpose, including advertising. The extension bundles no third-party analytics or advertising code.

8. Limited Use disclosure

CaptureProof Pro's use of information received from its permissions adheres to the Chrome Web Store User Data Policy, including the Limited Use requirements. Specifically:

  • Allowed use. Page content is used solely to produce the screenshot, detect sensitive values within it, and build the file you export — the extension's single purpose. It is used for nothing else.
  • Allowed transfer. No user data is transferred to anyone. The extension has no network capability.
  • No advertising. No user data is used or transferred for personalised, re-targeted, or interest-based advertising.
  • No human review. No human, including the developer, can read your data. It never leaves your device, so there is nothing to read.

9. Children

The extension is not directed at children and collects no data from anyone, regardless of age.

10. Limits of automatic detection

Sensitive-data detection is pattern-based. It reliably catches common formats, but it is an assistant rather than a guarantee: unusual formats can be missed, and ordinary text can occasionally be flagged. You remain responsible for reviewing any capture before you share it. A manual redaction tool is provided for anything the automatic scan does not catch.

11. Changes to this policy

Any change will be posted on this page with a revised "last updated" date. Material changes will also be noted in the extension's Chrome Web Store listing.

12. Contact

Questions about this policy, or about privacy in the extension, can be raised at the project's public issue tracker: github.com/generate-apps/captureproof/issues. Reports are read and answered there.

You can also reach the developer through the Support tab on the extension's Chrome Web Store listing, which routes messages privately rather than publicly.