XTSync is a Chrome extension developed by varunon9 that offers a convenient way to sync your followings between X and Threads. This free tool aims to save users time by automating the process of following people on Threads that they already follow on X. By simply logging into both platforms and using the Chrome extension, users can quickly review a list of matching users on Threads and select the ones they want to follow.

With XTsync, users can search all people on Threads that they follow on X and choose to follow all or selected individuals, streamlining the manual process. The extension ensures data privacy by running locally on the user's computer and not storing or sharing any followed user data.