YouTube Polyglot

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Privacy Policy

Last updated: August 4, 2025

At YouTube Polyglot, we take your privacy seriously. This Privacy Policy explains how we collect, use, and protect your information when you use our Chrome extension for searching, transcribing, and translating YouTube videos.

Information We Collect

Personal Information

When you use YouTube Polyglot, we may collect the following personal information:

  • Account Information: Email address, and authentication credentials when you create an account
  • Usage Preferences: Theme settings, auto-float preferences, language selections, and other customization options

Automatically Collected Information

  • YouTube Integration: URLs of YouTube videos you interact with, video titles, channel information, and timestamps
  • Device Information: Operating system, device type

How We Use Your Information

We use your information to:

  • Transcription Services: Generate and translate video transcripts in multiple languages.
  • AI Processing: Analyze video content to provide summaries, newsletters, articles, and answer your questions about video content
  • Bookmarking & History: Save your search history, bookmarked videos, and organize content by channels
  • Account Management: Manage your authentication, subscription status, and provide customer support
  • Communication: Send important updates about new features, security notifications, and promotional content (with your consent)

Data Security & Storage

Security Measures

We implement industry-standard security measures to protect your data:

  • Encryption: All data is encrypted in transit using TLS/SSL and at rest using AES-256 encryption
  • Access Controls: Strict access controls ensure only authorized personnel can access your data
  • Secure Authentication: Secure login system with password strength validation and remember me functionality
  • Local Storage Protection: Browser extension data is encrypted and stored securely in your local Chrome storage

Data Retention

  • Active Accounts: We retain your data while your account is active and for 90 days after account deletion

Data Sharing & Third Parties

We do not sell your personal information. We may share your data only in the following circumstances:

Service Providers

  • Authentication: Secure authentication services for user account management

Legal Requirements

We may disclose your information if required by law, court order, or to protect our rights and the safety of our users.

Your Privacy Rights

Depending on your location, you may have the following rights:

Access & Control

  • Correction: Update or correct inaccurate information in your account settings
  • Deletion: Delete your search history, bookmarks, or entire account
  • Portability: Export your bookmarks and search history in a machine-readable format
  • Opt-out: Disable auto-float features, live transcript, or other automated functionalities

Extension-Specific Controls

  • Theme Preferences: Control dark/light mode settings
  • Transcript Handling: Transcript content is only processed locally in your browser, which means it never leaves your device unless you explicitly request additional services. If you choose to use features like translation or audio playback, the extension may securely send just the transcript text to our third-party services (like AI translation or voice generation platforms). At no point is your full browsing history, personal data, or YouTube account information accessed or stored.
  • Language Settings: Manage your preferred transcript and translation languages
  • Auto-features: Toggle auto-scroll, auto-float window, and live transcript features
  • Search Data: Clear search history and bookmarks directly from the extension

Chrome Extension Specific Privacy

Permissions

Our Chrome extension requests the following permissions:

  • Active Tab: To analyze YouTube video content and provide search functionality
  • Storage: To securely store your preferences, search history, and bookmarks locally
  • Host Permissions: To work specifically with YouTube.com for video transcription and search
  • Background Scripts: To maintain live transcript functionality and search
  • Transcript Handling: Transcript content is only processed locally in your browser, which means it never leaves your device unless you explicitly request additional services. If you choose to use features like translation or audio playback, the extension may securely send just the transcript text to our third-party services (like AI translation or voice generation platforms). At no point is your full browsing history, personal data, or YouTube account information accessed or stored.

YouTube Integration

  • Video Access: We access video transcripts through YouTube's DOM.
  • Search Indexing: Video content is indexed locally on device for fast search functionality
  • Live Transcript: Real-time transcript processing with language selection and translation
  • No Content Storage: We do not store actual video content, only transcripts.
  • Transcript Handling: Transcript content is only processed locally in your browser, which means it never leaves your device unless you explicitly request additional services. If you choose to use features like translation or audio playback, the extension may securely send just the transcript text to our third-party services (like AI translation or voice generation platforms). At no point is your full browsing history, personal data, or YouTube account information accessed or stored.

AI and Machine Learning

Our extension uses AI technology to enhance your experience:

  • Content Analysis: AI processes video transcripts to generate summaries, newsletters, and articles
  • Question Answering: AI analyzes video content to answer your specific questions
  • Translation: Machine learning models provide accurate translations for multiple languages
  • Search Enhancement: AI improves search relevance and context understanding
  • Privacy Protection: All AI processing respects your privacy and data protection settings

Changes to This Privacy Policy

We may update this Privacy Policy periodically. When we do:

  • We'll notify you of significant changes via email or through the extension notification system
  • The updated policy will be posted on our website with a new "last updated" date
  • Your continued use of our extension constitutes acceptance of the updated policy

Contact Information

If you have questions about this Privacy Policy or want to exercise your privacy rights, contact us:

Support: support@legostack.com

Response Time: We aim to respond to privacy requests within 30 days

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