This weekend I published a new version of Formatter. A recent version of Xcode caused the extension to stop working, but it's ok now. If you're using Xcode 12.2 or higher, you'll want to download this update to continue enjoying having a handy JSON-format button while you're working on your iOS and Mac projects. Feel free to tell your friends and co-workers how handy Formatter is and thank you for being a customer!