What Is a Patcher?

A patcher is a tool that modifies an existing app by applying changes (patches) to its code. In the ReVanced ecosystem, the patcher takes a base YouTube APK and applies selected modifications locally on the user's device, producing a custom patched version.

ReVanced Patcher

ReVanced Manager includes a built-in patcher. There is also a command-line tool (ReVanced CLI) for advanced users. Both modify the app locally rather than downloading prebuilt modified APKs.