1. Introduction
Welcome to ChapterFast ("we," "our," or "us"). We are committed to protecting your personal information and your right to privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our web application at chapterfast.com and our Chrome browser extension.
2. Information We Collect
Account Information
When you register for an account, we collect:
- Name
- Email address
- Google account information (when using Google Sign-In)
Video Processing Data
When you use our chapter generation service, we process:
- YouTube video URLs or IDs that you submit
- Video transcripts (retrieved from YouTube)
- Generated chapter timestamps and titles
- Your selected chapter generation mode preferences
Chrome Extension Data
Our Chrome extension collects minimal data required for functionality:
- Authentication tokens: Session cookies are read to authenticate your account when using the extension
- YouTube video IDs: The video ID from YouTube Studio pages you visit is sent to our servers for chapter generation
- User preferences: Your selected chapter mode is stored locally in Chrome storage
The extension only activates on YouTube Studio video edit pages and does not track your general browsing activity.
Automatically Collected Information
We automatically collect certain information when you use our service:
- IP address
- Browser type and version
- Device information
- Usage data and analytics
3. How We Use Your Information
We use your information to:
- Provide and maintain our chapter generation service
- Create and manage your account
- Process video transcripts and generate AI-powered chapters
- Track your credit balance and usage
- Send you important updates and notifications
- Respond to your inquiries and support requests
- Monitor and analyze usage patterns to improve our service
- Comply with legal obligations
4. Chrome Extension Permissions
Our Chrome extension requests the following minimal permissions:
- storage: To save your chapter mode preference locally on your device (synced across your Chrome browsers)
- cookies: To read authentication session tokens for secure communication with our servers
- Host permissions (chapterfast.com): To communicate with our API servers for chapter generation
The extension injects the chapter generation button into YouTube Studio pages via manifest-declared content scripts, which does not require additional permissions.
5. Data Sharing and Disclosure
We may share your information in the following situations:
- AI Processing: Video transcripts are sent to AI providers (such as Google Gemini) for chapter generation. These providers process data according to their privacy policies
- Service providers: We share data with third-party vendors who assist in providing our services (hosting, payments)
- Legal requirements: We may disclose information if required by law or valid legal process
- Business transfers: In connection with any merger, sale, or acquisition
We do not sell your personal information to third parties.
6. Third-Party Services
We use the following third-party services:
- Google Sign-In: For authentication services
- YouTube Data: We access publicly available video transcripts through YouTube
- AI Providers: For generating chapter suggestions
- Payment processors: For handling credit purchases
These services have their own privacy policies governing the use of your information.
7. Data Security
We implement appropriate technical and organizational security measures to protect your personal information, including:
- Encrypted data transmission (HTTPS)
- Secure session token handling
- Regular security audits
However, no method of transmission over the Internet is 100% secure, and we cannot guarantee absolute security.
8. Data Retention
We retain your data as follows:
- Account data: Retained while your account is active
- Generated chapters: Stored in your history until you delete them or your account
- Video transcripts: Processed transiently and not permanently stored
- Extension preferences: Stored locally on your device until you uninstall the extension
9. Your Rights
Depending on your location, you may have the following rights:
- Access: Request access to your personal information
- Correction: Request correction of inaccurate information
- Deletion: Request deletion of your personal information and account
- Portability: Request a copy of your data in a portable format
- Objection: Object to certain processing of your information
To exercise these rights, please contact us at the email address below.
10. Children's Privacy
Our service is not intended for children under 13 years of age. We do not knowingly collect personal information from children under 13. If you are a parent or guardian and believe your child has provided us with personal information, please contact us.
11. Updates to This Policy
We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the "Last updated" date.
12. Contact Us
If you have any questions about this Privacy Policy or our data practices, please contact us at: