CORS Unblock
Extension Actions
Easily bypass CORS errors during development with a simple ON/OFF toggle.
Easily bypass CORS errors during development with a secure ON/OFF toggle.
CORS Unblock is a professional Chrome extension built specifically for web developers who need temporary, reliable control over Cross-Origin Resource Sharing during local development and testing.
⭐ Key Features
• One-Click ON / OFF Toggle
Instantly enable or disable CORS bypass with clear visual feedback.
• Visual Status Indicators
Color-coded badge and popup status ensure you always know when CORS is active.
• Quick Reload Controls
Reload the current page directly from the extension for faster iteration.
• Intelligent Cache Clearing
Clear cache, service workers, and perform hard reloads to avoid stale data during debugging.
• Domain Whitelist Management
Add or remove domains where CORS bypass is needed, keeping usage controlled and intentional.
• Comprehensive Resource Coverage
Works with fetch, XMLHttpRequest, scripts, images, stylesheets, fonts, media, and iframes.
• Persistent Preferences
Remembers your last state across browser restarts.
• Privacy-First Architecture
No data collection, no tracking, no remote servers.
👨💻 Built For
• Frontend and backend developers
• API and microservice testing workflows
• Local development environments
• QA and staging validation
🚀 Why Choose CORS Unblock?
Unlike generic CORS extensions that modify everything blindly or rely on unsafe debugging APIs, CORS Unblock focuses on:
• Control instead of brute force
• Clear visibility and safety
A practical tool for developers who want predictable CORS handling—without compromising security or stability.