opendatalab/labelU
Some data may be outdated — see provenance labels.
Open-source multimodal data annotation platform with AI auto-annotation support. observed · 2026-09-24
Health v2 · maintenance only
89/100
- Activity 86
- Release rhythm 87
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-22. Adoption (stars, forks) is never an input.
- gap_med: 0
- age_days: 1463
- days_rel: 85
- days_push: 85
- n_releases_24m: 50
Adoption not part of the score
1676 stars · 183 forks observed · 2026-09-24
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
LabelU is an open-source multimodal data annotation platform supporting images, video, and audio with tools like bounding boxes, segmentation, and keypoints. It integrates AI model services (Florence-2, GroundingDINO+SAM, SAM 3) for automatic pre-annotation that humans can refine.
Use cases
- annotate images with bounding boxes for object detection training
- label video segments for action recognition datasets
- create audio segmentation and classification annotations
- run AI auto-annotation on image datasets then manually refine
- prepare labeled multimodal datasets for model training
When to choose
- you need a self-hosted annotation tool covering image, video, and audio in one platform
- you want AI-assisted pre-labeling to speed up annotation
- your team needs flexible 2D annotation tools like polylines and keypoints
When to avoid
- you only need text or NLP annotation, which is not its focus
- you want a fully managed cloud annotation service without self-hosting
- you lack GPU resources for the AI auto-annotation features
Facets
application · maturity active
image-processing audio-processing video-processing machine-learning data-science machine-learning computer-vision data-science artificial-intelligence python self-hosted data-annotation labeling multimodal auto-annotation segmentation bounding-boxes web-server docker
3 sources
- readme: https://github.com/opendatalab/labelU · fetched 2026-09-24 · 4343bc0e8ce8
- homepage: https://opendatalab.github.io/labelU/ · fetched 2026-08-29 · 44136fa355b3
- registry_pypi: https://pypi.org/pypi/labelu/json · fetched 2026-08-29 · ec716e100e3f
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| opendatalab/labelU | main | 89 |
For agents
markdown · JSON · MCP: product_card(name="opendatalab/labelU")
Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem