openwrt/openwrt

OpenWrt is a custom Linux-based operating system (a complete replacement for the software that ships on your router) designed to give you full control over your home or business networking hardware. Instead of being stuck with whatever limited features your router's manufacturer decided to include, OpenWrt lets you completely replace that software with something far more capable and customizable. The typical use case: you have a supported WiFi router, you flash OpenWrt onto it, and suddenly that same physical device can do things the manufacturer never intended, advanced network traffic routing, VPN server, ad-blocking for every device on your network, custom firewall rules, mesh networking, bandwidth monitoring, and hundreds of other features available through an app-store-like package system. The project has been around for over 20 years and supports an enormous range of hardware, from budget home routers to professional networking equipment. There's a web interface called LuCI that makes configuration accessible without needing command-line expertise, though power users can also access the full Linux system underneath. This GitHub repository is the source code mirror used by developers who want to build custom firmware images or contribute to the project. For most people, the practical entry point is the Firmware Selector tool on their website, which lets you find and download a pre-built image for your specific device. If your router is on the supported list, you don't need to touch this code at all, just download and install the pre-made firmware.