Pre-ChatGPT Badges is a Chrome extension developed by patrick.rein. This free tool falls under the Browsers category, specifically under Add-ons & Tools. The main functionality of this extension is to add a badge to all Stack Overflow questions and answers that were posted prior to the release of ChatGPT. This feature aims to provide users with a visual indicator of content created before the ChatGPT era, potentially aiding in identifying older information on the platform.

The extension seamlessly integrates into the user's browsing experience by marking relevant content on Stack Overflow with the designated badge, allowing for quick recognition of pre-ChatGPT posts.