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100% Automate and Accurate

 Data Annotation
Dataset Curation
Model Validation
Accelerate data annotation by 15x and minimize costs by 5x using advanced auto-annotation tools.
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Why Unitlab?

Discover why Unitlab stands out as the ultimate solution for your data annotation needs.

15X

Fastest Data Annotation

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60%

Free Up AI Engineer’s Time

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5X

Save AI Development Cost

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Power Your AI Lifecycle with Unitlab

From data labeling to performance tracking — streamline every step with intelligent automation and full visibility.

Ai Powered Annotation

AI Powered Annotation

Our auto-annotation models detect, classify, and segment data instantly—reducing manual effort while maintaining precision.

Workflow diagram showing an Agriculture image detection project with 120 images and 40 annotations at 20% progress, connected to an AI Model automation with bounding box, then to a team of 6 annotators and 5 reviewers, leading to the output.

Integrated Annotation Workflows

Build custom workflows that connect labeling and QA into one automated loop. Minimize manual handoffs and deliver data pipelines that scale effortlessly.

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Integrate Your AI Models Seamlessly

Power your workflows with custom or pre-trained AI models. Run predictions, enhance labeling accuracy, and optimize your data pipeline — all in one place.

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Performance Analytics

Gain full visibility into project performance with real-time analytics, team productivity metrics, and accuracy dashboards.

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Collaboration & Scalability

Manage large datasets, assign tasks, and collaborate with distributed teams — all within a secure, scalable environment.

Unitlab annotation platform interface showing people segmentation project with multiple labeled images of people highlighted in blue.
Unitlab annotation platform interface showing people segmentation project with multiple labeled images of people highlighted in blue.
Unitlab annotation platform interface showing people segmentation project with multiple labeled images of people highlighted in blue.
Unitlab annotation platform interface showing people segmentation project with multiple labeled images of people highlighted in blue.
Unitlab annotation platform interface showing people segmentation project with multiple labeled images of people highlighted in blue.
Unitlab annotation platform interface showing people segmentation project with multiple labeled images of people highlighted in blue.
Screenshot of Unitlab interface showing multiple images of people labeled for segmentation with blue overlays, including scenes of group portraits, yoga poses, and soccer games.
Screenshot of Unitlab interface showing multiple images of people labeled for segmentation with blue overlays, including scenes of group portraits, yoga poses, and soccer games.
Screenshot of Unitlab interface showing multiple images of people labeled for segmentation with blue overlays, including scenes of group portraits, yoga poses, and soccer games.
Screenshot of Unitlab interface showing multiple images of people labeled for segmentation with blue overlays, including scenes of group portraits, yoga poses, and soccer games.

Smart Annotation
Data Types

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Image Annotation

Smart Image Annotation

Quickly and accurately label images with bounding boxes, polygons, or segmentation masks. Perfect for building precise computer vision datasets.

Screenshot of Unitlab interface showing multiple images of people labeled for segmentation with blue overlays, including scenes of group portraits, yoga poses, and soccer games.
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Text Annotation

Advanced Text Annotation

Turn raw text into structured insights with entity recognition, sentiment analysis, and custom labels for NLP and AI applications.

Screenshot of Unitlab interface showing multiple images of people labeled for segmentation with blue overlays, including scenes of group portraits, yoga poses, and soccer games.
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Audio Annotation

Precision Audio Annotation

Transcribe, segment, and label audio files efficiently. Capture speech, sound events, and emotions for AI-driven audio models.

Screenshot of Unitlab interface showing multiple images of people labeled for segmentation with blue overlays, including scenes of group portraits, yoga poses, and soccer games.
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Medial Annotation

Expert Medical Labeling

Annotate medical images and records with high accuracy. Supports CT, MRI, X-ray, and clinical text for reliable healthcare AI datasets.

Screenshot of Unitlab interface showing multiple images of people labeled for segmentation with blue overlays, including scenes of group portraits, yoga poses, and soccer games.

One Platform. Limitless
AI Potential.

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Create Project
Start by creating a new project in Unitlab. Define your goal, choose a data type, and set up the foundation for your workflow.
Interface for creating a project with options to select annotation types such as image bounding box, image polygon, image OCR, image point, image segmentation, image classification, image captioning, and image line, with a dropdown menu for data types including image, text, and audio, plus coming soon options for Dicom and video.
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Add Data
Upload your files from any source, organize them efficiently, and prepare your dataset for seamless annotation.
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Annotate Data
Label your data with AI-assisted or manual tools, using bounding boxes, polygons, keypoints, text tags, and more to build high-quality datasets.
User interface screen showing object detection labeling a lamp, laundry basket, and furniture in a living room with a sofa, with lines linking to four different AI frameworks or tools.
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Review Annotation
Check and verify annotations with collaborative tools, ensure accuracy, and make corrections before finalizing your dataset.
User interface showing annotation of a car body with robotic arms in a factory and history of labeled versions, including rejected and reviewed states.
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Export
Download your annotated dataset in multiple formats or directly integrate it with your AI models for training and deployment.
Table showing versions 0.1 to 0.7 with annotation progress bars, export types (YOLO, COCO, JSON), and release dates from 12 to 17 Nov 2025.
Start by creating a new project in Unitlab. Define your goal, choose a data type, and set up the foundation for your workflow.
Learn more    ↗
Interface for creating a project with options to select annotation types such as image bounding box, image polygon, image OCR, image point, image segmentation, image classification, image captioning, and image line, with a dropdown menu for data types including image, text, and audio, plus coming soon options for Dicom and video.
Upload your files from any source, organize them efficiently, and prepare your dataset for seamless annotation.
Learn more    ↗
Diagram showing four service icons—AWS, Google Cloud Platform, Microsoft Azure, and an upload icon—connected by yellow lines converging into a single orange circular icon with a white linked chain symbol.
Label your data with AI-assisted or manual tools, using bounding boxes, polygons, keypoints, text tags, and more to build high-quality datasets.
Learn more    ↗
User interface screen showing object detection labeling a lamp, laundry basket, and furniture in a living room with a sofa, with lines linking to four different AI frameworks or tools.
Check and verify annotations with collaborative tools, ensure accuracy, and make corrections before finalizing your dataset.
Learn more    ↗
User interface showing annotation of a car body with robotic arms in a factory and history of labeled versions, including rejected and reviewed states.
Download your annotated dataset in multiple formats or directly integrate it with your AI models for training and deployment.
Learn more    ↗
Table showing versions 0.1 to 0.7 with annotation progress bars, export types (YOLO, COCO, JSON), and release dates from 12 to 17 Nov 2025.

Industries We Serve

FAQs

Is Unitlab a free Data Annotation Tool?

Yes, it is! No credit card is required to use Unitlab. You can use the Unitlab tool for free forever as long as you stay within the set limits. However, for more extensive use, Unitlab offers a subscription model. This model's pricing is customized to your organization's specific usage, data requirements, and any extra services you might need, like our advanced labeling solutions. To get a tailored quote and further information, please connect with our sales team.

Can I switch my plan after I create my account?

Yes, you can start working with a Free Plan and then change plans in the future as you evaluate which is best for you.

How is the Price of a Data Labeling Service Calculated?

Data Labeling Services start at just $0.02 per image. The base price depends on the types of data annotation, the number of classes, and the average number of objects to annotate per image.

How Can I Set Up the Unitlab On-Premises Solution in My Local Workspace?

Unitlab offers a range of scalable On-Premises solutions! Contact Us to discuss your requirements. You can purchase Unitlab's On-Premises solution after consulting with us. We help you install our entire annotation system in your workspace.

Didn’t find the answer you are looking for? Contact our support

Unitlab Blogs

Discover expert insights, product updates, and best practices in AI data annotation, automation, and model training — all from the Unitlab team

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7 Best Proprietary Audio Annotation Tools of 2025 - A Comprehensive Review
A comprehensive review of top 7 paid audio annotation tools in 2025: features, pricing...
Read more
Open Source Datasets for ML
Top 10 Open-Source Datasets for Computer Vision
Explore top 10 open-source datasets for diverse applications in computer vision!
Read more
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Computer Vision in Healthcare: Applications, Benefits, and Challenges
Modern Computer Vision Landscape in Healthcare
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Unitlab | Automated data annotation platform for computer vision

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