Privacy Policy

What ThumbSkript does

ThumbSkript is a browser extension that adds a one-click button to YouTube video thumbnails. When clicked, it fetches the video’s publicly available caption track from YouTube and copies the transcript text to your clipboard. The extension operates entirely within your browser.

Data we collect

Local preferences (browser storage)

ThumbSkript saves two boolean settings locally in your browser using the standard extension storage API:

• Button visibility — whether the copy button shows on hover or is always visible
• Timestamps — whether copied transcripts include [MM:SS] time prefixes

These values are stored in chrome.storage.sync so your preferences follow you across devices signed into the same browser profile. They are never transmitted to any server operated by us.

Permissions explained

• clipboardWrite — writes the transcript text to your clipboard when you click the button. Used only on explicit user action.
• storage — saves the two preference values described above.
• youtube.com host access — required to inject the copy button into YouTube pages and fetch publicly available caption data for the video you choose to copy.

Third-party data sharing

We do not sell, share, or transfer any data to third parties. The only network request ThumbSkript makes is to YouTube’s own endpoints to retrieve the transcript of the video you explicitly clicked — identical to what your browser already does when you open a video.

Remote code

ThumbSkript does not load or execute any remote code. All extension logic is bundled inside the installed package.

Children’s privacy

ThumbSkript does not knowingly collect information from anyone, including children under 13.

Changes to this policy

If this policy changes materially, the updated date at the top of this page will reflect the revision. Continued use of the extension after a change constitutes acceptance of the new policy.