Topics / #annotation-tool
Annotation-tool projects on GitHub
Labeling and annotating images, text, and video for ML training.
As of , the most-starred Annotation-tool projects on GitHub are label-studio (28.5K stars), labelImg (25K stars) and screenity (18.8K stars). GitHub.Locker tracks 7 Annotation-tool repositories with 117.9K stars combined. The fastest-growing on October 18 was label-studio, with +10 stars in a day.
Hot right now
Most stars gained in a day · Oct 18
label-studio
HumanSignal/label-studio · ★ 28.5KLabel Studio is an open source data labeling and annotation tool: you label audio, text, images, videos, and time series in a browser UI and export the results in formats ready for ML training.
+8cvat
cvat-ai/cvat · ★ 17KCVAT is an open-source, self-hosted data annotation platform for building labeled datasets from images, video, and 3D point clouds, used for computer vision and visual AI projects.
+7evals-skills
ai-evals-course/evals-skills · ★ 1.5KA collection of agent skills that guide AI coding agents to build product-specific AI evals — not foundation-model benchmarks. It encodes mistakes the authors saw across 50+ companies and thousands of students in their AI Evals course.
screenity
alyssaxuu/screenity · ★ 18.8KA free, privacy-friendly screen recorder and annotation tool for Chrome: record your screen or camera, annotate and edit the video, and export it — with no time limits and no sign-up.
The all-time top
7 projects · by stars
- 28.5K
#1 · HumanSignal/label-studio
label-studio
Label Studio is an open source data labeling and annotation tool: you label audio, text, images, videos, and time series in a browser UI and export the results in formats ready for ML training.
- 25K
#2 · HumanSignal/labelImglabelImg
A graphical image annotation tool: you draw bounding boxes around objects in images to build labeled datasets for object detection. Created by Tzutalin, it now lives with the Label Studio community.
- 18.8K
#3 · alyssaxuu/screenity
screenity
A free, privacy-friendly screen recorder and annotation tool for Chrome: record your screen or camera, annotate and edit the video, and export it — with no time limits and no sign-up.
- 4

cvat
17Kcvat-ai/cvat · PythonCVAT is an open-source, self-hosted data annotation platform for building labeled datasets from images, video, and 3D point clouds, used for computer vision and visual AI projects.
- 5

labelme
16.2Kwkentaro/labelme · PythonLabelme is a graphical image annotation tool written in Python: you draw polygons, rectangles, circles, lines and points on images to build labeled datasets for computer vision work.
- 6

doccano
10.8Kdoccano/doccano · PythonDoccano is an open-source text annotation tool that lets humans label data for machine learning tasks like text classification, sequence labeling, and sequence-to-sequence problems such as summarization or translation.
- 7

evals-skills
1.5Kai-evals-course/evals-skillsA collection of agent skills that guide AI coding agents to build product-specific AI evals — not foundation-model benchmarks. It encodes mistakes the authors saw across 50+ companies and thousands of students in their AI Evals course.
Related topics
Often tagged together
- machine-learning931
- python2,440
- annotations17
- open-source5,768
- annotation18
- computer-vision393
- dataset126
- linux4,265
- web2,487
- windows3,493
- yolo21
- ai2,001
- data-labeling7
- deep-learning748
- docker1,686
- image-annotation5
- image-classification47
- macos3,624
- self-hosted1,985
- semantic-segmentation18
- server1,471
- apache-2.01,457
- bounding-boxes5
- classification45