Data labeling
for computer vision
Label images and videos and take full control of your training data.
Power your computer vision algorithm with datasets of any size.
Annotations we support
With Toloka, you can control data labeling accuracy to build a predictable pipeline of high-quality training data that impacts your CV algorithms. Our platform supports annotation for image classification, semantic segmentation, object detection and recognition, and instance segmentation. Labeling tools include bounding boxes, polygons and keypoint annotation.
View Toloka Demo
Access demo and see Toloka in action. Toloka offers flexible project configuration: use our presets for a faster start, or take full control to customize your projects for the most complex labeling needs. Options include adaptive tools and automation to develop a robust data pipeline that evolves with you. Hands on or hands off — it's up to you.
Get demo
Real-time insights
Track your projects with real-time statistics on progress, spending, quality, time spent on tasks and active users involved. Leverage detailed analytics to fine-tune as necessary and make timely decisions to optimize speed, quality and budget.
Why Toloka
ML technologies
- One platform to manage human labeling & ML
- Prebuilt scalable infrastructure for training and real-time inference
- Flexible foundation models pre-trained on large datasets
- Automatic retraining and monitoring out of the box
Diverse global crowd
- 100+ countries
- 40+ languages
- 200k+ monthly active Tolokers
- 800+ daily active projects
- 24/7 continuous data labeling
Crowdsourcing technologies
- Advanced quality control and adaptive crowd selection
- Smart matching mechanisms
- 10 years of industry experience and proven methodology
- Open-source Python library for aggregation methods
Robust secure infrastructure
- Privacy-first, GDPR-compliant focus on data protection test
- ISO 27001-certified
- Multiple data storage options, Microsoft Azure cloud
- Automatic scaling to handle any volumes
- API and open-source libraries for seamless integration
For developers
Python SDK
Our Python toolkit covers all API
functionality to give you the full
power of TolokaJava SDK
Our Java client library provides a lightweight
interface to the Toloka API that works
in any Java environment
Have a data labeling project?
Take advantage of Toloka technologies. Chat with our expert to learn how to get reliable training data for machine learning at any scale.