Best Image Annotation Software in 2026
Updated
In short: Label Studio is ranked #1 of 28 as of 4 October 2026, ahead of Roboflow and Supervisely. The best-ranked option with a free plan is Roboflow. The lowest first paid tier on this page is CVAT at $1.92/mo.
Image annotation software is used to label images for datasets and other visual-data work. Compared on annotation types, image formats, and model-assisted labeling, the entries also give you dataset export and API access to weigh when planning how labeled data will move through your work. Team collaboration, free-plan availability, and paid-from pricing add further comparison points. Label Studio, Roboflow, and Supervisely are among the options shown, alongside CVAT and Pixano. Consider the formats and annotation methods your project needs, then compare the listed export, integration, collaboration, and pricing details.
28 image annotation software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
28ranked
6free plans on this page
$1.92/molowest paid tier
4 Oct 2026last checked
Input list Image Annotation Software 25 channels on this page · 154 of 200 spec lines stated by the makers
Ch Tool Free planPaid fromAnnotation typesImage formatsModel-assisted labelingDataset exportTeam collaborationAPI access Spec sheet Score
01 Label Studio Free planYesPaid fromnot statedAnnotation typesrectangles, ellipses, keypoints, polygons, brush masks, image classificationImage formatsnot statedModel-assisted labelingYesDataset exportJSON, JSON MIN, CSV, TSV, COCO, Pascal VOC XML, YOLO, PNG, NumPyTeam collaborationYesAPI accessYes 6/8spec lines stated 7.8
02 Roboflow Free planYesPaid fromnot statedAnnotation typesbounding boxes, polygons, segmentation masks, classification labels, keypointsImage formatsJPG, PNG, WEBP, AVIF, BMPModel-assisted labelingYesDataset exportJSON, XML, CSV, TXT, and 30+ additional formatsTeam collaborationYesAPI accessYes 7/8spec lines stated 7.3
03 Supervisely Free planYesPaid fromnot statedAnnotation typesrectangle, line/polyline, polygon, multipolygon, point, bitmap mask, graph/keypoints, alpha mask, 2D cuboidImage formats.jpg, .jpeg, .mpo, .bmp, .png, .webp, .tiff, .tif, .jfif, .avif, .heic, .heifModel-assisted labelingYesDataset exportSupervisely Format, COCO, Pascal VOC, YOLOv8, DOTA, Cityscapes, Amazon S3, Google Cloud Storage, Microsoft Azure, S3-compatible storageTeam collaborationYesAPI accessYes 7/8spec lines stated 7.3
04 CVAT Free planYesPaid from23/user/moAnnotation typesRectangle/bounding box, polygon, polyline, points, ellipse, cuboid, skeleton, tag, brush/maskImage formatsJPEG, PNG, BMP, GIF, PPM, TIFFModel-assisted labelingYesDataset exportCVAT XML, Datumaro JSON, COCO JSON, YOLO, Pascal VOC, Cityscapes, KITTI, Open Images, MOT, and othersTeam collaborationYesAPI accessYes 8/8spec lines stated 7.1
05 Labelme Free planYesPaid fromnot statedAnnotation typespolygons, rectangles, oriented rectangles, circles, lines, points, masks, rich attributesImage formatsPNG, JPEG, BMP, TIFFModel-assisted labelingYesDataset exportLabelme JSON, YOLO, YOLO-OBB, Pascal VOC, masks, visualizationsTeam collaborationnot statedAPI accessNo 6/8spec lines stated 7.1
06 Pixano Free planYesPaid fromnot statedAnnotation typesbounding boxes, polygons, pixel masks, keypoints, cuboids, classification, trackingImage formatsJPEG, PNGModel-assisted labelingYesDataset exportCOCO, Pixano annotation formatTeam collaborationnot statedAPI accessYes 6/8spec lines stated 7.1
07 Labellerr Free planYesPaid fromnot statedAnnotation typesBounding box, polygon, polyline, keypoint, dot, classification, segmentation, object detectionImage formatsJPG, JPEG, PNG, BMP, TIFFModel-assisted labelingYesDataset exportCOCO JSON, YOLO, Pascal VOC XML, CSV, custom formatsTeam collaborationYesAPI accessYes 7/8spec lines stated 7.0
08 Ultralytics Platform Free planYesPaid from29/user/moAnnotation typesdetection; instance segmentation; semantic segmentation; classification; pose estimation; oriented bounding boxesImage formatsJPEG; PNG; WebP; TIFF; HEIC; AVIF; BMP; JP2; DNG; MPOModel-assisted labelingYesDataset exportUltralytics NDJSONTeam collaborationYesAPI accessYes 8/8spec lines stated 7.0
09 Labelbox Free planYesPaid fromnot statedAnnotation typesbounding boxes, segmentation masks, image classification, radio classificationImage formatsJPEGModel-assisted labelingYesDataset exportJSON, NDJSON, CSV, BigQuery, DatabricksTeam collaborationYesAPI accessYes 7/8spec lines stated 6.7
10 BasicAI Free planYesPaid from9/user/moAnnotation typesobject detection, object tracking, bounding boxes, polygons, polylines, keypoints, classification, semantic segmentation, instance segmentation, panorama segmentationImage formatsJPG, JPEG, PNG, BMP, TIFF, WebPModel-assisted labelingYesDataset exportBasicAI Image Format, COCO, Pascal VOC XML, YOLO, cloud storageTeam collaborationYesAPI accessYes 8/8spec lines stated 6.5
11 FiftyOne Free plannot statedPaid fromnot statedAnnotation typesbounding boxes; polygons; segmentation masks; classifications; polylines; SAM2 click-to-segment instance segmentationImage formatsJPEG; PNG; BMPModel-assisted labelingYesDataset exportCOCO; image directory; image classification directory tree; FiftyOne dataset; Python/CLI exportTeam collaborationYesAPI accessYes 6/8spec lines stated 6.4
12 MakeSense.ai Free planYesPaid fromnot statedAnnotation typespoint, line, rectangle, polygon, labelImage formatsnot statedModel-assisted labelingYesDataset exportCSV, YOLO, VOC XML, VGG JSON, COCO JSONTeam collaborationnot statedAPI accessnot stated 4/8spec lines stated 6.3
13 Xtreme1 Free plannot statedPaid fromnot statedAnnotation typesbounding box, polygon, polyline, classificationImage formatsJPG, PNGModel-assisted labelingYesDataset exportCOCO, JSON, Xtreme1 annotation formatTeam collaborationnot statedAPI accessYes 5/8spec lines stated 6.3
14 segmenteverygrain Free plannot statedPaid fromnot statedAnnotation typesinstance segmentation masks; polygon editing; foreground/background point prompts; grain classification labelsImage formatsJPEG; PNGModel-assisted labelingYesDataset exportGeoJSON; CSV; PNG/JPEG masks; labeled image directoryTeam collaborationnot statedAPI accessYes 5/8spec lines stated 6.1
15 Vailabel Studio Free planYesPaid fromnot statedAnnotation typesbounding boxes, polygons, points, lines, circles, free-draw, SAM smart-segmentImage formatsnot statedModel-assisted labelingYesDataset exportCOCO, YOLO, YOLO-Seg, Pascal VOC, LabelMe JSONTeam collaborationNoAPI accessnot stated 5/8spec lines stated 6.1
16 Dataloop Free plannot statedPaid fromnot statedAnnotation typesbounding boxes, polygons, key points, cuboids, polylines, semantic segmentation, classification, tagging, hierarchical annotationImage formatsJPG, JPEG, PNG, TIFFModel-assisted labelingYesDataset exportDataloop JSON, COCO, YOLO, VOCTeam collaborationYesAPI accessYes 6/8spec lines stated 6.0
17 SuperAnnotate Free plannot statedPaid fromnot statedAnnotation typesclassification, key-point, bounding box, polygon, polyline, tiled imagery, cuboid, skeletonImage formats.jpg, .jpeg, .png, .gif, .bmp, .webp, .svgModel-assisted labelingYesDataset exportSuperAnnotate JSON, SuperAnnotate JSONL, SuperAnnotate CSVTeam collaborationYesAPI accessYes 6/8spec lines stated 6.0
18 V7 Darwin Free planYesPaid fromnot statedAnnotation typesPolygon; bounding box; tag; skeleton; keypoint; line; ellipse; mask; attributes; text; directional vector; instance IDImage formats.jpg, .jpeg, .webp, .png, .bmp, .svs, .tif, .tiff, .qtiff, .dcm, .rvg, .nii, .nii.gz, .ndpiModel-assisted labelingYesDataset exportDarwin JSON; Darwin XML; COCO; CVAT; YOLO; Semantic PNG; Instance PNG; Pascal VOC; NIfTITeam collaborationYesAPI accessYes 7/8spec lines stated 6.0
19 Annota AI Free planYesPaid fromnot statedAnnotation typesbounding boxes; polygons; segmentation masksImage formatsPNG; JPEGModel-assisted labelingYesDataset exportCOCOTeam collaborationYesAPI accessnot stated 6/8spec lines stated 5.9
20 Annotate-Lab Free planYesPaid fromnot statedAnnotation typesConfigured region annotations, including polygon and bounding-box regions; circle tool shown in exampleImage formatsnot statedModel-assisted labelingYesDataset exportAnnotated image, mask, annotation settings; YOLO formatTeam collaborationNoAPI accessnot stated 5/8spec lines stated 5.8
21 Kili Technology Free planNoPaid fromnot statedAnnotation typesbounding boxes, polygons, semantic segmentation, pose estimation, named entity recognition, classificationImage formatsPNG, JPEG/JPG, GIF, BMP, WebP, ICO, JP2, NTF, TIFF/TIF, GeoTIFFModel-assisted labelingYesDataset exportKili, YOLO v4, YOLO v5, YOLO v7, YOLO v8, Pascal VOC, COCO, GeoJSONTeam collaborationYesAPI accessYes 7/8spec lines stated 5.8
22 Segments.ai Free planNoPaid fromnot statedAnnotation typessegmentation, bounding box, polygon, polyline, keypoint, cuboidImage formatsjpeg, png, bmpModel-assisted labelingYesDataset exportJSON, PyTorch, TensorFlow, Hugging FaceTeam collaborationYesAPI accessYes 7/8spec lines stated 5.8
23 VGG Image Annotator Free planYesPaid fromnot statedAnnotation typesrectangle, circle, ellipse, point, polygon, polylineImage formatsnot statedModel-assisted labelingNoDataset exportCSV, JSON, COCO formatTeam collaborationYesAPI accessnot stated 5/8spec lines stated 5.8
24 Draw Attention Free planYesPaid fromnot statedAnnotation typespolygon, rectangle, circle, hotspotImage formatsPNG, JPG, GIFModel-assisted labelingnot statedDataset exportinteractive image codeTeam collaborationnot statedAPI accessnot stated 4/8spec lines stated 5.7
25 Encord Free planNoPaid fromnot statedAnnotation typesbounding boxes, rotatable bounding boxes, polygons, bitmasks, polylines, keypoints, primitives, classificationsImage formatsnot statedModel-assisted labelingYesDataset exportJSON, COCOTeam collaborationYesAPI accessYes 6/8spec lines stated 5.7
Is your tool 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 Specifiction?
Label Studio is ranked #1 of 28 with a score of 7.8. Roboflow is second and Supervisely third.
How many of these have a free plan?
6 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, the fullest spec sheet first: how deeply the product is documented, the platforms it runs on, a free tier or trial to test it, and its standing. Paid placements never change a rank.
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