Cyrillic Killer
Blurs all Cyrillic characters on web pages with site exception management
About
Cyrillic Killer is a browser extension designed to help users stay focused by automatically blurring all Cyrillic characters on web pages. It is ideal for language learning, reducing distractions, or filtering specific types of content. The extension works seamlessly in the background and allows users to manage site-based exceptions.
Key Features
Automatic Cyrillic Detection
Detects and blurs all Cyrillic characters (Unicode range U+0400–U+04FF) on any website. Works with both static and dynamic content, including modern web applications built with React and Vue, and supports Shadow DOM for full coverage.
Smart Site Exception Management
Easily add websites to an exception list to disable blurring on selected domains. Wildcard domain patterns (e.g., *.example.com) are supported. One-click toggle allows adding or removing the current site.
Modern and Intuitive Interface
Clean and modern popup interface for managing site exceptions. Includes real-time site detection and clear visual feedback about whether the current site is excluded or affected.
High Performance
Optimized to minimize performance impact. Uses debouncing to prevent slowdowns, intelligently avoids interfering with text input fields, and manages memory efficiently.
Privacy and Security
All data is stored locally in your browser. The extension does not use external servers, does not collect personal data, and does not include tracking or analytics.
Use Cases
Language Learning
Focus on non-Cyrillic content while learning languages
Productivity
Improve productivity by reducing visual distractions
Content Filtering
Custom content filtering based on personal preferences
Accessibility
Accessibility adjustments for better content visibility
Technical Details
- • Manifest version: 3
- • Permissions: storage, activeTab
- • Compatibility: Chrome, Edge, and other Chromium-based browsers
- • Performance: optimized for low resource usage
Privacy & Security
Your privacy is important to us. All data is stored locally on your device. We do not collect, transmit, or store any personal information.
Read Full Privacy Policy