Project Title

doccano — Open-Source Text Annotation Tool for Machine Learning Practitioners

Overview

doccano is an open-source text annotation tool designed for machine learning practitioners, offering features for text classification, sequence labeling, and sequence to sequence tasks. It enables users to create labeled data for various applications such as sentiment analysis and named entity recognition. With its user-friendly interface and collaborative annotation capabilities, doccano stands out for its ease of use and efficiency in dataset creation.

Key Features

Collaborative annotation
Multi-language support
Mobile support
Emoji support
Dark theme
RESTful API

Use Cases

Machine learning practitioners use doccano to create labeled datasets for training models in natural language processing tasks.
Researchers in linguistics and computational linguistics use it for text classification and sequence labeling tasks.
Data scientists employ doccano for sentiment analysis and text summarization projects.

Advantages

Rapid dataset creation with a user-friendly interface.
Supports a wide range of annotation tasks, making it versatile for different machine learning applications.
Open-source, allowing for community contributions and customization.

Limitations / Considerations

The project's license is currently unknown, which might affect its use in commercial applications.
As with any annotation tool, the quality of the annotated data depends on the annotators' expertise and consistency.

Prodi.gy: A commercial platform for data annotation that offers a wide range of features but is not open-source.
Label Studio: An open-source annotation tool that supports various data types and machine learning models, differing in its focus on interoperability with different models.
Brat: A web-based tool for text annotation, known for its simplicity but lacking some of the advanced features found in doccano.

Basic Information

GitHub: https://github.com/doccano/doccano
Stars: 10,278
License: Unknown
Last Commit: 2025-09-23

📊 Project Information

Project Name: doccano
GitHub URL: https://github.com/doccano/doccano
Programming Language: Python
⭐ Stars: 10,278
🍴 Forks: 1,811
📅 Created: 2018-05-09
🔄 Last Updated: 2025-09-23

🏷️ Project Topics

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