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