Best Image Annotation Software in 2026
Updated
In short: CVAT is ranked #1 of 26 as of 3 October 2026, ahead of BasicAI and Label Studio. The best-ranked option with a free plan is Label Studio. The lowest first paid tier on this page is CVAT at $1.92/mo.
26 image annotation software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
26ranked
4free plans on this page
$1.92/molowest paid tier
3 Oct 2026last checked
| # | Platform | Score | Why | From | Free plan | Paid from | Annotation types | |
|---|---|---|---|---|---|---|---|---|
| 1 | CVAT | 9.0 | RecognisedAPIDocumented | $1.92/mo | Yes | 23 /user/mo | Rectangle/bounding box, polygon, polyline, points, ellipse, cuboid, skeleton, tag, brush/mask | View |
| 2 | BasicAI | 8.8 | RecognisedAPIDocumented | $550/mo | Yes | 9 /user/mo | object detection, object tracking, bounding boxes, polygons, polylines, keypoints, classification, semantic segmentation, instance segmentation, panorama segmentation | View |
| 3 | Label Studio | 8.7 | RecognisedAPIDocumented | $99/mo | Yes | — | rectangles, ellipses, keypoints, polygons, brush masks, image classification | View |
| 4 | Roboflow | 8.6 | RecognisedAPIDocumented | $39/mo | Yes | — | bounding boxes, polygons, segmentation masks, classification labels, keypoints | View |
| 5 | Ultralytics Platform | 8.0 | RecognisedAPIDocumented | $29/mo | Yes | 29 /user/mo | detection; instance segmentation; semantic segmentation; classification; pose estimation; oriented bounding boxes | View |
| 6 |  Pixano | 7.8 | RecognisedAPIDocumented | — | Yes | — | bounding boxes, polygons, pixel masks, keypoints, cuboids, classification, tracking | View |
| 7 | Labelbox | 6.8 | RecognisedAPIDocumented | — | Yes | — | bounding boxes, segmentation masks, image classification, radio classification | View |
| 8 | V7 Darwin | 6.7 | RecognisedAPIDocumented | — | Yes | — | Polygon; bounding box; tag; skeleton; keypoint; line; ellipse; mask; attributes; text; directional vector; instance ID | View |
| 9 | FiftyOne | 6.5 | RecognisedAPIDocumented | — | — | — | bounding boxes; polygons; segmentation masks; classifications; polylines; SAM2 click-to-segment instance segmentation | View |
| 10 |  Supervisely | 6.5 | RecognisedAPIDocumented | — | Yes | — | rectangle, line/polyline, polygon, multipolygon, point, bitmap mask, graph/keypoints, alpha mask, 2D cuboid | View |
| 11 | Dataloop | 6.3 | RecognisedAPIDocumented | — | — | — | bounding boxes, polygons, key points, cuboids, polylines, semantic segmentation, classification, tagging, hierarchical annotation | View |
| 12 | SuperAnnotate | 6.2 | RecognisedAPIDocumented | — | — | — | classification, key-point, bounding box, polygon, polyline, tiled imagery, cuboid, skeleton | View |
| 13 |  Labellerr | 6.1 | RecognisedAPIDocumented | — | Yes | — | Bounding box, polygon, polyline, keypoint, dot, classification, segmentation, object detection | View |
| 14 | Kili Technology | 5.8 | RecognisedAPIDocumented | — | No | — | bounding boxes, polygons, semantic segmentation, pose estimation, named entity recognition, classification | View |
| 15 |  Labelme | 5.8 | RecognisedAPIDocumented | — | Yes | — | polygons, rectangles, oriented rectangles, circles, lines, points, masks, rich attributes | View |
| 16 | Encord | 5.7 | RecognisedAPIDocumented | — | No | — | bounding boxes, rotatable bounding boxes, polygons, bitmasks, polylines, keypoints, primitives, classifications | View |
| 17 |  MakeSense.ai | 5.6 | RecognisedAPIDocumented | — | Yes | — | point, line, rectangle, polygon, label | View |
| 18 |  Keylabs | 5.5 | RecognisedAPIDocumented | — | No | — | Bounding box, polygon, polylines, keypoints, semantic segmentation, instance segmentation, rotating bounding box, skeletal, cuboid, mesh, 3D point cloud, bitmask, custom annotation | View |
| 19 |  Segments.ai | 5.5 | RecognisedAPIDocumented | — | No | — | segmentation, bounding box, polygon, polyline, keypoint, cuboid | View |
| 20 |  Vailabel Studio | 5.5 | RecognisedAPIDocumented | — | Yes | — | bounding boxes, polygons, points, lines, circles, free-draw, SAM smart-segment | View |
| 21 |  Xtreme1 | 5.4 | RecognisedAPIDocumented | — | — | — | bounding box, polygon, polyline, classification | View |
| 22 |  VGG Image Annotator | 5.4 | RecognisedAPIDocumented | — | Yes | — | rectangle, circle, ellipse, point, polygon, polyline | View |
| 23 | Annota AI | 5.4 | RecognisedAPIDocumented | — | Yes | — | bounding boxes; polygons; segmentation masks | View |
| 24 |  PixLab Annotate | 5.1 | RecognisedAPIDocumented | — | Yes | — | bounding boxes, polygons | View |
| 25 |  Draw Attention | 5.1 | RecognisedAPIDocumented | — | Yes | — | polygon, rectangle, circle, hotspot | View |
Is your platform on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which image annotation software is ranked first on Inferse?
CVAT is ranked #1 of 26 with a score of 9.0. BasicAI is second and Label Studio third.
How many of these have a free plan?
4 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, CVAT has the lowest first paid tier we found: $1.92/mo.
How is this list ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it. Paid placements never change a rank.
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