GitHub Filter is a free Chrome add-on developed by alfred.ct.choi. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools. This program aims to enhance the reviewing experience on GitHub by allowing users to filter files during the comparison process.

With GitHub Filter, users can easily ignore irrelevant files and focus solely on the ones that matter to them. This is particularly useful when reviewing pull requests, as it enables users to filter out files like snapshots and concentrate solely on reviewing code changes.

The add-on seamlessly integrates into the GitHub interface, providing a straightforward and accessible filtering mechanism. By utilizing GitHub Filter, users can optimize their reviewing workflow and ensure that they are efficiently reviewing the necessary files.

Overall, GitHub Filter is a valuable tool for GitHub users who want to streamline their reviewing process. Its ability to filter files during comparisons allows for a more focused and efficient review, ultimately enhancing the overall reviewing experience.