Data Annotation for Machine Learning

We build high-quality datasets for computer vision, NLP and AI.

Object annotation on image

ML Pipeline

Full data preparation cycle from raw data to model-ready dataset.

1
Data
Collect and prepare source data.
2
Annotation
Experts annotate objects and labels.
3
Quality
Multi-step QA and consistency checks.
4
Dataset
Delivery in required training format.

Annotation Examples

Different annotation types for computer vision tasks

Calculate Annotation Cost

Choose parameters and get instant estimate

Segmentation
Bounding Box
Polygons
Classification
1,000 images

Our offer

Price per 1,000 units$150
Number of images1,000
Number of classes1
ComplexityLow
Project cost$150*

* This estimate is not a public offer. Final project cost is defined after technical requirements and data review.

News

Latest updates in data annotation and machine learning.

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About Us

We prepare data for machine learning and computer vision projects. In simple terms, we turn raw images, video, and text into well-annotated datasets that are fully ready for AI model training.

Our own platform, detailed guidelines, and multi-stage validation help us keep stable accuracy even at large volumes.

We know every project needs its own approach. Sometimes it is enough to mark objects in an image; sometimes you need carefully designed annotation logic and shared data rules. There are no universal templates here.

That is why our annotators work side by side with ML specialists, so we evaluate labeling not only as a process, but also from the perspective of model quality.

How can we help your project?

— Computer vision data annotation (bounding box, segmentation, polygons, cuboid);
— Classification and tagging;
— Text annotation and NLP tasks;

The whole workflow is built as a single ML process: from raw data preparation to delivery of a finished dataset in the most requested formats — COCO, YOLO, CVAT, and others ready for model training.

Free

Tools for working with data

Convert annotation formats and prepare datasets right in your browser

🔄
Converter
COCO JSON → CVAT XML
Convert COCO annotations to CVAT import format
🔄
Soon
CVAT XML → COCO
Back conversion for ML pipelines
🔄
Soon
COCO → YOLO TXT
Convert to YOLO training format
All tools →
Cabinet

Manage annotation tasks in one place

Create tasks, receive estimates and track progress without calls or long email threads.

1
Create task
2
Get estimate
3
Launch annotation
✔ Task management✔ Pilot annotation✔ Status control✔ Data security
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Discuss your task?

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