Privacy Policy — Calmlys for YouTube

Last updated: October 30, 2025

Overview

Calmlys for YouTube is built privacy-first. We do not collect, sell, or transmit any personal data.

Data We Collect

None.

  • No analytics or tracking
  • No usage statistics
  • No personal information
  • No browsing history or watch history
  • No IP addresses
  • No cookies (beyond Chrome's built-in extension storage)

Local-Only Storage

The extension stores settings locally using Chrome's chrome.storage.local:

  • Feature toggle states (on/off)
  • Playback preferences (e.g., speed, volume)
  • UI preferences

This data never leaves your device, is not shared with anyone, and is removed when you uninstall the extension.

Permissions

  • storage
    Used to save your preferences locally on your device.
  • Host permissions: https://www.youtube.com/*, https://m.youtube.com/*, https://youtu.be/*
    Used to apply distraction-free features only on YouTube domains.

We do not request access to other sites, browsing history, network interception, clipboard, location, camera, or microphone.

Network Communication

The extension makes no external network requests:

  • No connections to remote servers
  • No API calls to third parties
  • No telemetry, crash reporting, or "phone home"

Everything works offline and runs entirely on your device.

Third-Party Services

None. No analytics, no error tracking, no ads, no CDNs.

Open Source

You can review and build the code yourself:

  • Inspect the source
  • Verify no data collection
  • Audit changes over time

Policy Changes

If this policy changes (for example, to add an optional, opt-in feature), we will:

  1. Update this document
  2. Bump the extension version
  3. Note the change in the Chrome Web Store listing
  4. Request explicit consent for any new data handling (if applicable)

Your Control

  • All data stays on your device
  • Uninstall anytime to remove all data
  • No accounts or registration

Contact

Compliance

  • Chrome Web Store Developer Program Policies
  • GDPR and CCPA principles (no data collection)

Plain English

Calmlys for YouTube doesn’t know who you are or what you watch. It can’t phone home. Everything happens on your computer.