plainheaders

Add, change or remove HTTP request & response headers. Open source, no tracking, access only to sites you choose.

Chrome extension (Manifest V3). Built with AI assistance.

Build

python3 build.py → zip for the Chrome Web Store.

Privacy

See PRIVACY.md.

Third-party code

See ext/vendor/ (licenses included). ExtPay.module.js (ExtensionPay, LGPL-3.0 per upstream LICENSE) is modified here to call the native chrome.* promise APIs instead of importing webextension-polyfill; that file stays under its own license.

License

MIT (except ext/vendor/)