Labelme vs Ultralytics Platform
| Labelme | Ultralytics Platform | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | Yes | No |
| Paid from | — | $29/mo |
| Open source | No | No |
| Platforms | Linux, macOS, Windows | api, self-hosted, Web |
| Free plan | Yes | Yes |
| Annotation types | polygons, rectangles, oriented rectangles, circles, lines, points, masks, rich attributes | detection; instance segmentation; semantic segmentation; classification; pose estimation; oriented bounding boxes |
| Image formats | PNG, JPEG, BMP, TIFF | JPEG; PNG; WebP; TIFF; HEIC; AVIF; BMP; JP2; DNG; MPO |
| Model-assisted labeling | Yes | Yes |
| Dataset export | Labelme JSON, YOLO, YOLO-OBB, Pascal VOC, masks, visualizations | Ultralytics NDJSON |
| API access | No | Yes |
| Paid from | — | 29 /user/mo |
| Team collaboration | — | Yes |
Both are listed in Best Image Annotation Software. On Inferse, Ultralytics Platform scores higher on our published basis.