Best AI Data Labeling Tools in 2026
Updated
In short: doccano is ranked #1 of 21 as of 4 October 2026, ahead of Roboflow and CVAT. The best-ranked option with a free plan is Roboflow. The lowest first paid tier on this page is CVAT at $1.92/mo.
AI data labeling tools support the preparation of datasets across different modalities and workflows. Compare entries on supported modalities, model-assisted labeling, and human review workflows, along with custom ontologies and deployment options. API access, free-plan availability, and paid-from pricing offer further points to consider. The ranking begins with doccano, Roboflow, and CVAT, followed by LabelU and Alibaba Cloud PAI iTAG. The data types you work with and how labeling is reviewed or integrated can help you focus on the capabilities that matter when comparing the entries.
21 AI data labeling tools ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
Recognised 40% · Phone app 26% · Documented 20% · Free plan 14% of the score
- 1 doccano iPhone + Android RecognisedPhone appDocumentedFree plan 7.8Free Supported modalities: text, image, audioModel-assisted labeling: YesHuman review workflows: Yes
- 2 Roboflow iPhone + Android RecognisedPhone appDocumentedFree plan 7.8$39/mo Model-assisted labeling: Yes
- 3 CVAT No phone app RecognisedPhone appDocumentedFree plan 6.4$1.92/mo Model-assisted labeling: Yes
- 4 Alibaba Cloud PAI iTAG No phone app RecognisedPhone appDocumentedFree plan 6.3Free Supported modalities: image, text, video, audio, multimodalModel-assisted labeling: YesHuman review workflows: Yes
- 5 Amazon SageMaker Autopilot No phone app RecognisedPhone appDocumentedFree plan 6.3 Model-assisted labeling: Yes
- 6 BRAT No phone app RecognisedPhone appDocumentedFree plan 6.3Free Supported modalities: textModel-assisted labeling: YesHuman review workflows: Yes
- 7 Label Studio No phone app RecognisedPhone appDocumentedFree plan 6.3$99/mo Model-assisted labeling: Yes
- 8 Supervisely No phone app RecognisedPhone appDocumentedFree plan 6.3€199/mo Model-assisted labeling: Yes
- 9 Argilla No phone app RecognisedPhone appDocumentedFree plan 6.2Free Model-assisted labeling: Yes
- 10 LabelU No phone app RecognisedPhone appDocumentedFree plan 5.9 Supported modalities: image, video, audioModel-assisted labeling: YesHuman review workflows: Yes
- 11 Labelbox No phone app RecognisedPhone appDocumentedFree plan 5.8 Model-assisted labeling: Yes
- 12 BasicAI No phone app RecognisedPhone appDocumentedFree plan 5.7$550/mo Model-assisted labeling: Yes
- 13 Prodigy No phone app RecognisedPhone appDocumentedFree plan 5.5
- 14 Intellisane Annotation Platform No phone app RecognisedPhone appDocumentedFree plan 5.3 Supported modalities: image, video, audio, text, 3D point cloudsHuman review workflows: Yes
- 15 V7 Darwin No phone app RecognisedPhone appDocumentedFree plan 5.3 Model-assisted labeling: Yes
- 16 Dataloop No phone app RecognisedPhone appDocumentedFree plan 5.2 Model-assisted labeling: Yes
- 17 MoniSa DataOps No phone app RecognisedPhone appDocumentedFree plan 5.2 Supported modalities: text, image, audio, videoHuman review workflows: Yes
- 18 SuperAnnotate No phone app RecognisedPhone appDocumentedFree plan 5.2 Model-assisted labeling: Yes
- 19 VGG Image Annotator No phone app RecognisedPhone appDocumentedFree plan 5.1 Model-assisted labeling: No
- 20 Kili Technology No phone app RecognisedPhone appDocumentedFree plan 5.0 Model-assisted labeling: Yes
- 21 Encord No phone app RecognisedPhone appDocumentedFree plan 4.9 Model-assisted labeling: Yes
Is your app 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 AI data labeling tool is ranked first on Samsung Mobile US Press?
doccano is ranked #1 of 21 with a score of 7.8. Roboflow is second and CVAT third.
How many of these have a free plan?
8 of the 21 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 mobile-first: a phone app alongside the web or desktop product, a free tier and the depth of its documentation. Paid placements never change a rank.