UniversalDataTool/universal-data-tool

Health v2 · maintenance only

Adoption not part of the score

2072 stars · 201 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Universal Data Tool is a web and desktop application for collaboratively annotating images, text, audio, and documents, supporting tasks like image segmentation, classification, and named entity recognition. It uses an extensible .udt.json/.udt.csv format and can be run in a browser, downloaded as a desktop app, or self-hosted on-premise.

Use cases

• annotate images for object detection and segmentation
• label text for named entity recognition
• create image classification training datasets
• label audio data for machine learning
• collaboratively label datasets with a team
• convert and edit datasets in udt.json format

When to choose

• you need a free, open-source labeling tool covering multiple data types
• you want a desktop app or self-hosted option for data annotation
• you need collaborative dataset labeling with a standard file format

When to avoid

• you need a fully managed, enterprise-grade annotation platform with advanced QA workflows
• your project requires very large-scale distributed labeling pipelines with integrations your stack depends on

Facets

application · maturity maintenance

image-processing nlp data-science gui machine-learning computer-vision data-science windows cross-platform data-annotation labeling-tool image-segmentation named-entity-recognition text-annotation audio-annotation dataset-creation udt-format natural-language-processing web-server linux macos desktop javascript

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markdown · JSON · MCP: product_card(name="UniversalDataTool/universal-data-tool")