context-window-meter

Privacy Policy — Context Window Meter for ChatGPT

Last updated: 20 July 2026

Summary

This extension collects nothing, stores nothing, and sends nothing anywhere.

What the extension does

The extension runs only on https://chatgpt.com/*. It wraps the page’s own fetch function so it can read the conversation JSON that ChatGPT already loads, count the tokens in it, and display the total in a badge on the page.

All of this happens in your browser tab, in memory, while the tab is open.

Data collection

The extension does not:

• transmit any data off your device, to the developer or to any third party
• store conversation content on disk, in chrome.storage, in localStorage, or in cookies
• use analytics, telemetry, tracking pixels, or advertising identifiers
• read pages or requests on any site other than chatgpt.com
• create a user account or ask for any personal information

Conversation text is read to compute a token count and is discarded when the tab is closed or reloaded. Nothing persists between sessions.

Permissions

• Host permission https://chatgpt.com/* — required to inject the counter into ChatGPT pages and read the conversation payload the page has already fetched. This is the only site the extension can access.

The extension requests no other permissions.

Third parties

None. There is no backend server associated with this extension.

Changes

If this policy changes, the updated version will be published at this URL and the “last updated” date will change.

Contact

Questions about this policy can be raised as an issue on the project repository.

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This extension is an independent project. It is not affiliated with, endorsed by, or sponsored by OpenAI. “ChatGPT” is a trademark of OpenAI.

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