403 Unlocker GUI is a desktop app built with Electron, Vite, and React that helps you check whether a domain is filtered (blocked) and tests which DNS providers can unlock access to it.
- Detect if a domain is blocked (HTTP 403 or DNS filtered)
- Automatically test multiple DNS servers to find which ones can resolve the blocked domain
- Clean and responsive UI built with React
- Super fast performance thanks to Vite + Electron
- React
- Vite
- Electron
- Tailwindcss
- Enter a domain (e.g., hub.docker.com)
- The app checks if it's blocked or filtered by your current network
- It tests various DNS servers to see which ones can resolve the domain successfully
- Displays the working DNS servers that can bypass the block
- Quickly identify DNS-level restrictions
- Discover which DNS providers can bypass filtering
- Useful for devs, researchers, and internet freedom enthusiasts
- 🪟 Windows (.exe): Download here
- 🍎 macOS (.dmg): Download here
- 🐧 Linux (.AppImage): Download here
This project is licensed under the zlib License.
See the LICENSE file for details.