Tech riderRev. 20 Sept 2026
- 1Runs onWeb, Windows, Mac, Linux
- 2CostsNot stated by the maker
- 3Annotation typesbounding boxes; polygons; segmentation masks; classifications; polylines; SAM2 click-to-segment instance segmentation
- 4Image formatsJPEG; PNG; BMP
- 5Model-assisted labelingYes
- 6Dataset exportCOCO; image directory; image classification directory tree; FiftyOne dataset; Python/CLI export
- 7Team collaborationYes
- 8API accessYes
7 lines stated Written from the maker's own pages: voxel51.com

Overview
FiftyOne is ranked #11 of 28 in image annotation software on Specifiction. It runs on Web, Windows, macOS, Linux.
Compared on image annotation software
- Annotation types
- bounding boxes; polygons; segmentation masks; classifications; polylines; SAM2 click-to-segment instance segmentationvoxel51.com
- Image formats
- JPEG; PNG; BMPvoxel51.com
- Model-assisted labeling
- Yesvoxel51.com
- Dataset export
- COCO; image directory; image classification directory tree; FiftyOne dataset; Python/CLI exportvoxel51.com
- Team collaboration
- Yesvoxel51.com
- API access
- Yesvoxel51.com
Company
- Founded
- 2018voxel51.com · 28 Sept 2026
Best FiftyOne alternatives
See all 12 All accessCh 01 Label Studio Free planFree trialAPI from $99/mo7.8 All accessCh 02 Roboflow Free planAndroidAPI from $39/mo7.3 All accessCh 03 Supervisely Free planFree trialAPI from €199/mo7.3 All accessCh 04 CVAT Free planAPIself-hosted from $1.92/mo7.1 All accessCh 05 Labelme Free trialLinuxMac 7.1 All accessCh 06 Pixano APILinux 7.1
Where it ranks on Specifiction
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Sources
- voxel51.com/annotation/image· checked 28 Sept 2026



