Best Image Annotation Software in 2026
Updated
Image annotation software supports labeling visual data for datasets, model development, and review. Compared on annotation types and image formats, these entries also show whether model-assisted labeling, dataset export, and API access are available. Team collaboration can matter when several people share labeling work; free plans and paid-from pricing add budget context. CVAT, Label Studio, and Labellerr are options to examine against the annotation tasks and outputs your project requires. Consider how each tool handles the formats you work with, the labeling methods you need, and the way your team will access or export its data.
28ranked
13free plans on this page
$1.92/molowest paid tier
9 Oct 2026last checked
Image Annotation Software, one module each.A lit port is something its maker publishes; 17 of 17 with a known API signal have a public API.
- 01 CVAT API yesFREE yesDOCS 7.4$1.92/mo
- 02 Label Studio API yesFREE yesDOCS 7.3$99/mo
- 03 Labellerr API yesFREE yesDOCS 7.3$833.25/mo
- 04 Roboflow API yesFREE yesDOCS 7.3$39/mo
- 05 Segments.ai API yesFREE yesDOCS 7.3Free
- 06 Supervisely API yesFREE yesDOCS 7.3€199/mo
- 07 Ultralytics Platform API yesFREE yesDOCS 7.3$29/mo
- 08 Labelbox API yesDOCS 7.0
- 09 Pixano API yesDOCS 7.0
- 10 BasicAI API yesDOCS 6.9$550/mo
- 11 Dataloop API yesDOCS 6.9
- 12 FiftyOne API yesDOCS 6.9
- 13 SuperAnnotate API yesDOCS 6.9
- 14 V7 Darwin API yesDOCS 6.9
- 15 Keylabs API yesFREE noDOCS 6.8
- 16 Encord API yesDOCS 6.7
- 17 Kili Technology API yesFREE noDOCS 6.7
- 18 Annota AI FREE yesDOCS 5.9€21.96/mo
- 19 Draw Attention FREE yesDOCS 5.9$8.25/mo
- 20 VGG Image Annotator FREE yesDOCS 5.9Free
- 21 MakeSense.ai FREE yesDOCS 5.8Free
- 22 PixLab Annotate FREE yesDOCS 5.8Free
- 23 Vailabel Studio FREE yesDOCS 5.8Free
- 24 Labelme FREE noDOCS 5.4
- 25 Xtreme1 DOCS 5.4$550/mo
Compare all 25 in a table
| # | Platform | Score | Free plan | From | Free plan | Paid from | Annotation types | Image formats |
|---|---|---|---|---|---|---|---|---|
| 1 | CVAT | 7.4 | Free plan | $1.92/mo | Yes | 23 /user/mo | Rectangle/bounding box, polygon, polyline, points, ellipse, cuboid, skeleton, tag, brush/mask | JPEG, PNG, BMP, GIF, PPM, TIFF |
| 2 | Label Studio | 7.3 | Free plan | $99/mo | Yes | rectangles, ellipses, keypoints, polygons, brush masks, image classification | ||
| 3 | Labellerr | 7.3 | Free plan | $833.25/mo | Yes | Bounding box, polygon, polyline, keypoint, dot, classification, segmentation, object detection | JPG, JPEG, PNG, BMP, TIFF | |
| 4 | Roboflow | 7.3 | Free plan | $39/mo | Yes | bounding boxes, polygons, segmentation masks, classification labels, keypoints | JPG, PNG, WEBP, AVIF, BMP | |
| 5 | Segments.ai | 7.3 | Free plan | Free | No | segmentation, bounding box, polygon, polyline, keypoint, cuboid | jpeg, png, bmp | |
| 6 | Supervisely | 7.3 | Free plan | €199/mo | Yes | rectangle, line/polyline, polygon, multipolygon, point, bitmap mask, graph/keypoints, alpha mask, 2D cuboid | .jpg, .jpeg, .mpo, .bmp, .png, .webp, .tiff, .tif, .jfif, .avif, .heic, .heif | |
| 7 | Ultralytics Platform | 7.3 | Free plan | $29/mo | Yes | 29 /user/mo | detection; instance segmentation; semantic segmentation; classification; pose estimation; oriented bounding boxes | JPEG; PNG; WebP; TIFF; HEIC; AVIF; BMP; JP2; DNG; MPO |
| 8 | Labelbox | 7.0 | Yes | bounding boxes, segmentation masks, image classification, radio classification | JPEG | |||
| 9 | Pixano | 7.0 | Yes | bounding boxes, polygons, pixel masks, keypoints, cuboids, classification, tracking | JPEG, PNG | |||
| 10 | BasicAI | 6.9 | $550/mo | Yes | 9 /user/mo | object detection, object tracking, bounding boxes, polygons, polylines, keypoints, classification, semantic segmentation, instance segmentation, panorama segmentation | JPG, JPEG, PNG, BMP, TIFF, WebP | |
| 11 | Dataloop | 6.9 | bounding boxes, polygons, key points, cuboids, polylines, semantic segmentation, classification, tagging, hierarchical annotation | JPG, JPEG, PNG, TIFF | ||||
| 12 | FiftyOne | 6.9 | bounding boxes; polygons; segmentation masks; classifications; polylines; SAM2 click-to-segment instance segmentation | JPEG; PNG; BMP | ||||
| 13 | SuperAnnotate | 6.9 | classification, key-point, bounding box, polygon, polyline, tiled imagery, cuboid, skeleton | .jpg, .jpeg, .png, .gif, .bmp, .webp, .svg | ||||
| 14 | V7 Darwin | 6.9 | Yes | Polygon; bounding box; tag; skeleton; keypoint; line; ellipse; mask; attributes; text; directional vector; instance ID | .jpg, .jpeg, .webp, .png, .bmp, .svs, .tif, .tiff, .qtiff, .dcm, .rvg, .nii, .nii.gz, .ndpi | |||
| 15 | Keylabs | 6.8 | No | No | Bounding box, polygon, polylines, keypoints, semantic segmentation, instance segmentation, rotating bounding box, skeletal, cuboid, mesh, 3D point cloud, bitmask, custom annotation | |||
| 16 | Encord | 6.7 | No | bounding boxes, rotatable bounding boxes, polygons, bitmasks, polylines, keypoints, primitives, classifications | ||||
| 17 | Kili Technology | 6.7 | No | No | bounding boxes, polygons, semantic segmentation, pose estimation, named entity recognition, classification | PNG, JPEG/JPG, GIF, BMP, WebP, ICO, JP2, NTF, TIFF/TIF, GeoTIFF | ||
| 18 | Annota AI | 5.9 | Free plan | €21.96/mo | Yes | bounding boxes; polygons; segmentation masks | PNG; JPEG | |
| 19 | Draw Attention | 5.9 | Free plan | $8.25/mo | Yes | polygon, rectangle, circle, hotspot | PNG, JPG, GIF | |
| 20 | VGG Image Annotator | 5.9 | Free plan | Free | Yes | rectangle, circle, ellipse, point, polygon, polyline | ||
| 21 | MakeSense.ai | 5.8 | Free plan | Free | Yes | point, line, rectangle, polygon, label | ||
| 22 | PixLab Annotate | 5.8 | Free plan | Free | Yes | bounding boxes, polygons | ||
| 23 | Vailabel Studio | 5.8 | Free plan | Free | Yes | bounding boxes, polygons, points, lines, circles, free-draw, SAM smart-segment | ||
| 24 | Labelme | 5.4 | No | Yes | polygons, rectangles, oriented rectangles, circles, lines, points, masks, rich attributes | PNG, JPEG, BMP, TIFF | ||
| 25 | Xtreme1 | 5.4 | $550/mo | bounding box, polygon, polyline, classification | JPG, PNG |
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