Privacy Policy
This Privacy Policy explains how the YouTube SEO Description + Chapters Generator Chrome extension ("the extension", "we") by Lab Tools handles information. By using the extension you agree to this policy.
1. What the extension does
On a YouTube video you're viewing, it reads the video's public captions/subtitles and generates a ready-to-paste block — an SEO description, suggested keywords, and chapters with timestamps — that you can copy into your video's Description box. You never need an API key and you do not need to sign in.
2. How the description is generated
To write the description, keywords, and chapter titles, the video's public transcript (timestamps + caption text) and the public video title are sent over HTTPS to our own Lab Tools service running on Cloudflare Workers AI, which returns the generated text. Only this already-public video data is sent — never your account, identity, or any private information.
The transcript is processed transiently to produce your result and is not stored, not logged for reuse, and not sold.
3. What is stored — and where
The only data the extension saves is your own interface preferences (number of chapters, caption language track, hashtags toggle). This is stored locally on your device using the browser's chrome.storage API. It never leaves your machine. Removing the extension removes this data.
4. Data we do NOT collect
- No YouTube account data, watch history, identity, or authenticated session information.
- No reading of your Google account or profile email.
- No cross-site browsing tracking, analytics, or advertising.
- No selling or sharing of data with third parties.
- We process only the public captions of the video you are viewing.
5. Rate limiting & abuse prevention
To keep the free service available, our server applies a per-device daily usage limit. It does this by counting requests against a non-reversible short hash of the connecting IP address — we never store your raw IP, and the hash cannot be turned back into it.
6. Permissions we request — and why
We request the minimum permissions needed for the feature to work, and nothing is used for tracking.
7. Third parties
The only external services the extension communicates with are YouTube (to read the video's public caption data) and our own Lab Tools service on Cloudflare Workers AI (to generate the description). We use no third-party analytics, advertising, or tracking. Your use of YouTube is governed by Google's Privacy Policy.
8. Optional email opt-in
An email subscription form is off by default. If it is ever shown and you choose to subscribe, we collect only the email address you explicitly provide, with your consent, to send product updates. You can unsubscribe at any time. We never obtain your email without your direct action.
9. Limited Use
Our use of information complies with the Chrome Web Store Limited Use requirements: data accessed is used solely to provide the description-generation feature you requested, and for no other purpose. We do not transfer it to third parties except as needed to provide that feature, do not use it for advertising, and do not use it to determine creditworthiness or for lending.
10. Children
The extension is a productivity tool for content creators and is not directed at children under 13.
11. Changes to this policy
If this policy changes, we'll update the "Last updated" date above. Material changes will be reflected here before they take effect.
12. Contact
Questions about privacy? Reach Lab Tools at the contact listed on our Chrome Web Store page.