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 work with data annotation for machine learning and computer vision tasks. In simple terms, we turn raw data into structured datasets that can be used to train AI models.

Our projects involve different types of data — images, video, text. Some tasks are straightforward, others require more complex annotation logic. We don’t rely on one-size-fits-all approaches and adjust the workflow depending on the project.

The team includes both annotators and machine learning specialists. Because of that, we treat annotation not as a separate step, but as part of the model training process. We use our own platform, define clear guidelines, and run multi-level quality checks to keep accuracy consistent.

Typical tasks we handle:
— computer vision annotation (bounding boxes, segmentation, polygons, cuboids)
— classification and tagging
— NLP and text annotation

The workflow follows a full ML pipeline — from raw data preparation to final datasets. You receive data in the required format (COCO, YOLO, CVAT, etc.), ready to be used in your machine learning models without extra processing.

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
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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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