THINKTYPE
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Privacy

Everything stays in your browser.

EFFECTIVE 11 NOVEMBER 2026 / THINKTYPE v0.2.0 / CHROME MV3 / LOCAL ONLY

What Thinktype processes

  • Composer text. On chatgpt.com and chat.openai.com, Thinktype reads the text in the ChatGPT composer so it can calculate word counts, WPM, pauses and signal quality. This happens locally on your machine.
  • Typing metrics. It records timings, WPM, word counts, corrections and related stats for prompts you send. These are stored in chrome.storage.local in your browser.
  • Your settings. Your threshold, minimum length, HUD position and privacy choices are stored in the same local extension storage.

By default, Thinktype does not store the text of your prompts. If you turn on Store the text of sent prompts, that text is stored locally with the session and included in your export.

What Thinktype does not do

  • No server, account, analytics, telemetry or remote logging.
  • No prompt text, metrics or settings are transmitted off your device. There is no network code in the extension.
  • No data is sold, rented or shared with third parties.
  • No advertising or tracking code.
  • No reading of tabs or sites other than the ChatGPT domains listed in the extension manifest.

Permissions

storageSave your settings and local session history.
clipboardWrite Copy the locally rendered share card to your clipboard when you click Copy image.
https://chatgpt.com/* Attach the HUD and read the ChatGPT composer so typing can be measured.
https://chat.openai.com/* Legacy ChatGPT domain, which redirects to chatgpt.com.

Thinktype does not request the tabs, scripting, webRequest or <all_urls> permissions.

Retention and deletion

Your data stays in Chrome's local extension storage until you remove it. Open Thinktype's settings and choose Clear all sessions to delete your history, or Export data to take a copy first. Uninstalling the extension removes its local storage.

Security

Thinktype has no backend to secure. The extension runs inside Chrome's extension sandbox and only requests the permissions listed above. The optional stored text is protected by Chrome's extension storage, not by a separate encryption layer.

Children

Thinktype is a general-purpose productivity tool and is not directed at children under 13. It does not knowingly collect personal information from anyone.

Changes

If this policy changes, the effective date above will be updated and the change will be visible in the public repository. Continued use after a change means you accept the updated policy.

Contact

Questions or concerns: open an issue at github.com/loftwah/thinktype/issues or email dean@deanlofts.xyz.

This page is the canonical privacy policy linked from the Chrome Web Store listing and from the extension's settings page.