Roboflow is an end-to-end platform for building, deploying and monitoring computer vision applications.
Alternatives to doccano
doccano is a free, open-source workspace for labeling text. It handles classification, sequence labeling, and sequence-to-sequence tasks, with examples including sentiment analysis, named-entity recognition, and summarization. A typical workflow runs from project setup and dataset import through guidelines, annotation, and export. Multiple annotators can collaborate, and REST APIs connect the work to scripts and machine-learning models. It supports mobile use and…
Label Studio is an open-source data labeling platform for text, images, audio, video, time series, and multimodal data.
VGG Image Annotator (VIA) is a suite of lightweight tools for manually labeling images, audio and video.
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Prodigy
Prodigy is a developer tool and Python library for building training and evaluation data for machine learning models.
WebAPILinuxmacOS7.0$390 one-time - 5

CVAT
CVAT is a platform for turning images, video, 3D data, and audio into labeled datasets for AI workflows.
Free planWebAPISelf-hosted6.9Free plan - 6
Supervisely
Supervisely is a computer-vision platform for organizing data, labeling images, video, LiDAR, and medical imagery, and developing models for production.
Free planWebAPISelf-hosted6.9From €199 a month - 7
Alibaba Cloud PAI iTAG
Alibaba Cloud PAI iTAG is a data-labeling platform for image, text, video, audio, and multimodal data.
Free planWebAPILinuxWindows6.2Free plan - 8

Argilla
Argilla is a collaboration tool for AI engineers and domain experts building datasets with human feedback.
Free planWebAPILinuxSelf-hosted6.2Free plan - 9
BRAT
brat is a free, open-source tool for structured text annotation, designed for annotations in fixed forms that computers can process.
Free planWebLinuxmacOSSelf-hosted6.1Free plan - 10
LabelU
LabelU is an open-source platform for annotating image, video, and audio data, intended for work that supports complex data analysis and model training.
WebAPImacOSSelf-hosted6.1 - 11

BasicAI
BasicAI is a multimodal annotation platform, with managed services, for preparing AI training data.
WebAPISelf-hosted6.0From $6,600 a year - 12

Dataloop
Dataloop is a web-based platform for annotating image datasets, with model-assisted labeling and collaboration for teams.
WebAPILinuxmacOS6.0 - 13
Intellisane Annotation Platform
Intellisane Annotation Platform is a cloud service for labeling image, video, audio, text, and 3D point-cloud data for AI training.
Free planWebAPI6.0Free plan - 14

Labelbox
Labelbox provides tools and services for AI training data, reinforcement learning environments, evaluations, and enterprise agent workflows.
WebAPI6.0 - 15

Kili Technology
Kili Technology is an expert-in-the-loop platform for creating, reviewing, and evaluating AI data, including training and ground-truth datasets.
WebAPISelf-hosted5.9 - 16

SuperAnnotate
SuperAnnotate provides infrastructure for AI teams to create, evaluate, and improve data across modalities until datasets are ready for training.
WebAPImacOSWindows5.9 - 17

Encord
Encord is a paid multimodal data infrastructure layer for AI teams, covering work from pre-training and post-training through deployment.
WebAPISelf-hosted5.6 - 18
MoniSa DataOps
MoniSa DataOps supports planning, annotation, and review for multilingual AI data projects across text, image, audio, and video.
5.6 - 19

V7 Darwin
V7 Darwin is a web and API data-labeling platform for building training datasets for AI models.
WebAPI5.6 - 204.8
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LabelLLM
Web4.6

