When building an Object Detection model, do you have any specific tools or recommendations on how to best annotate objects? There are a lot of tools out there, but they often feel cumbersome to use in comparison to the ease of Create ML.

Check out


for documentation on how to structure annotated data for object detection. Apple doesn't have a tool we can provide to create the annotations, and I agree it can be a bit of a cumbersome process. Hope that helps!

Some options suggested by non-Apple developers:

  • Roboflow - though if their public plan doesn’t work for you, then it is quite expensive
  • Label Studio - it’s open source
  • CVAT - there is a hosted, free version available at cvat.org, but you can self-host
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