SpeechBridge-Privacy

# Privacy Policy for SpeechBridge

**Last Updated: 2026-11-09**

SpeechBridge ("we", "our", or "the extension") is committed to protecting your privacy. This Privacy Policy explains how SpeechBridge handles data when you use our Chrome browser extension.

### 1. Single Purpose & Data Minimization

SpeechBridge is built with a strict privacy-first philosophy. Its sole purpose is to provide real-time translation and AI dubbing for captioned YouTube videos. 

### 2. Information We Do NOT Collect

- **No Personal Identifiable Information (PII)**: We do not collect names, email addresses, phone numbers, IP addresses, or account credentials.

- **No Browsing History**: We do not track, log, or inspect your browsing history, tabs, or visited URLs outside of matching video captions on the active YouTube page.

- **No Analytics / Telemetry Tracking**: We do not use third-party analytics trackers (e.g., Google Analytics, Mixpanel, cookies).

- **No Keystroke Logging**: The extension never reads input fields, passwords, or personal messages.

### 3. How Data is Processed

- **Caption Text & Translation**: When enabled on a YouTube video, caption text is extracted from the video player and transmitted directly to public translation endpoints (such as `translate.googleapis.com`) strictly to fetch translated text. This data is ephemeral, processed in real time, and is never stored on any remote server operated by SpeechBridge.

- **Text-to-Speech (TTS)**: Speech synthesis is performed either via your browser's local Web Speech API or trusted public neural synthesis endpoints. No audio recordings of your voice or personal environment are captured or transmitted.

- **Local Settings Storage (`chrome.storage.local`)**: Your preferences (such as selected target language, playback speed, and audio ducking volume) are stored solely within your browser's local memory. This data never leaves your device.

### 4. Third-Party Services

SpeechBridge interacts with YouTube and Google Translation services strictly to deliver caption dubbing functionality. Any interaction with these platforms is governed by their respective privacy policies:

- YouTube Terms of Service: https://www.youtube.com/t/terms

- Google Privacy Policy: https://policies.google.com/privacy

### 5. Children's Privacy

SpeechBridge does not knowingly collect or solicit any personal data from anyone under the age of 13.

### 6. Changes to this Policy

We may update this Privacy Policy from time to time. Any changes will be posted on this page with an updated revision date.

### 7. Contact Us

If you have any questions or feedback regarding this Privacy Policy, please contact us by opening an issue on our official GitHub repository.