NoobHeaders

Simple, local-first HTTP header modifier for developers and noobs. No ads, no tracking.

NoobHeaders is the simplest and most privacy-focused HTTP header modification extension. Designed for developers and beginners, it allows you to customize HTTP request and response headers without compromising your privacy. KEY FEATURES Multiple Profiles Create and switch between different header configurations. Ideal for managing multiple projects or environments (dev, staging, production). Request and Response Headers Modify both outgoing headers (request) and incoming headers (response). Complete control over your HTTP communications. Smart Filters Apply your headers only to specific URLs or domains. Create precise rules for each use case. Import/Export Share your configurations with your team or save them for future use. Standard JSON format. Absolute Privacy • No advertisements • No tracking or telemetry • No data collection • All your data stays on your device • Works 100% offline Open Source Complete source code available on GitHub. Fully transparent and auditable by everyone. Lightweight and Fast Optimized extension with minimal performance impact. Only strictly necessary permissions. Intuitive Interface Clean and modern design built for developers and beginners alike. No unnecessary complexity. USE CASES API Development • Test different authentication tokens • Simulate custom headers • Debug authentication issues CORS Debugging • Add Access-Control-Allow-Origin for local testing • Resolve CORS issues without modifying the server • Test different CORS configurations User-Agent Testing • Simulate different browsers and devices • Test responsive design • Verify mobile/desktop detection Custom Headers • Add your own proprietary headers • Test backend behaviors • Simulate specific environments Bypass Restrictions • Modify Referer for testing • Adjust Origin for development • Customize Accept-Language HOW TO USE 1. Installation Install the extension from Chrome Web Store 2. Basic Configuration • Click the extension icon • Add a header with the "Add Header" button • Configure the name (e.g., X-Custom-Header) and value • Enable with the main toggle button 3. Advanced Filters • Click "Add Filter" to target specific URLs • Use URL patterns (e.g., *://api.example.com/*) • Or filter by domain (e.g., example.com) 4. Profile Management • Create multiple profiles for different projects • Switch profiles with one click • Duplicate, rename, or delete as needed 5. Import/Export • Export your configurations as JSON • Share with your team • Import existing configurations SECURITY AND PRIVACY NoobHeaders respects your privacy: • Zero data collected: we never see your configurations • Local storage only: everything stays on your device • No external connections: no servers, no telemetry • Open source: audit the code yourself on GitHub • Minimal permissions: only what is strictly necessary PERMISSIONS EXPLAINED storage: Save your profiles locally declarativeNetRequest: Modify HTTP headers (core functionality) declarativeNetRequestFeedback: Verify that rules are active <all_urls>: Apply your headers to the sites you configure No permission is superfluous. Each one is essential for proper operation. WHY CHOOSE NOOBHEADERS? VS ModHeader • Simpler and more modern • Open source and transparent • No hidden telemetry VS Requestly • Cleaner interface • No superfluous features • Focus only on HTTP headers VS Simple Modify Headers • Modern design • Better profile management • Active support and continuous development OPEN SOURCE Fully open source project: • GitHub: https://github.com/BioSs54/noobheaders • Report a bug: https://github.com/BioSs54/noobheaders/issues • Contribute: https://github.com/BioSs54/noobheaders/blob/main/CONTRIBUTING.md SUPPORT Need help? • Check the README on GitHub • Open an issue to report problems • Contribute to the project if you wish