Layer Privacy Policy

Last updated: February 7, 2026

What Layer Does

Layer is a browser extension that allows you to customize any website with your own CSS (styles) and JavaScript (functionality). You write the code, and Layer applies it to websites you choose.

Data Collection

Layer does NOT collect any user data. Specifically, we do not collect:

• Personal information (name, email, etc.)
• Browsing history or activity
• Website content you view
• The CSS/JavaScript code you write
• Analytics or usage statistics
• Cookies or tracking identifiers

Data Storage

All your customizations (the CSS and JavaScript code you write) are stored locally in your browser using Chrome's built-in storage API. This data:

• Never leaves your device
• Is not transmitted to any servers
• Is not accessible to the Layer developers
• Remains under your complete control

Permissions Explained

Layer requests the following permissions. Here's exactly why each is needed:

activeTab

Allows Layer to inject your custom CSS/JavaScript into the website you're currently viewing when you activate a customization.

scripting

Required to execute the custom CSS and JavaScript code you write. Without this, Layer cannot apply your customizations.

storage

Saves your customizations locally in your browser so they persist between sessions. All data stays on your device.

tabs

Identifies which website you're viewing so Layer can apply the correct customizations for that specific domain.

Host Permissions (access to all websites)

Allows you to customize any website you visit. Layer only accesses websites when you explicitly create a customization for them. This permission does not mean Layer reads or monitors your browsing.

Third-Party Services

Layer does not use:

• Analytics services (Google Analytics, etc.)
• Crash reporting tools
• Advertising networks
• Any external APIs or servers

User-Generated Code

The CSS and JavaScript code you write in Layer is executed in your browser on the websites you specify. Layer is not responsible for:

• Code you write that may break websites
• Security implications of custom scripts
• Violations of website terms of service

You are responsible for the code you create and run.

Open Source

Layer is open source. You can review the complete source code at: github.com/thevrus/layer

Children's Privacy

Layer does not knowingly collect data from anyone, including children under 13. Since we don't collect any data at all, there is no age restriction concern.

Changes to This Policy

If Layer ever begins collecting data (for example, optional analytics), we will:

• Update this privacy policy
• Notify users through the extension
• Require explicit opt-in consent

Data Deletion

To delete all Layer data:

1. Uninstall the Layer extension from Chrome
2. All locally stored customizations will be automatically deleted

Contact

Questions about this privacy policy? Contact us at:

GitHub Issues

GitHub: github.com/thevrus/layer

Legal Compliance

This privacy policy complies with:

• Chrome Web Store Developer Program Policies
• General Data Protection Regulation (GDPR)
• California Consumer Privacy Act (CCPA)

Layer Extension | GitHub | Chrome Web Store