GitGuessr Mapper

Use this extension to maintain your own code maps for GitGuessr. It lets you create new maps or takes existing maps in JSON format as input. Browse a GitHub repo at a specific commit to easily add locations to a map by highlighting the line numbers in the GitHub UI. You can also step through all locations for a map.

All data is stored locally only, nothing is sent to a server. After making changes to a map within the extension, download the map in JSON format again and upload it to GitGuessr.