标注与偏好数据

Label Studio is a multi-type data labeling and annotation tool with standardized output format

The free and privacy-friendly screen recorder with no limits 🎥

CVAT is a leading data annotation platform for image, video, audio, and 3D datasets. It offers open-source, cloud, and enterprise products, as well as labeling services, with AI-assisted labeling, quality assurance, team collaboration, analytics, and developer APIs.

Cleanlab's open-source library is the standard data-centric AI package for data quality and machine learning with messy, real-world data and labels.

Argilla is a collaboration tool for AI engineers and domain experts to build high-quality datasets

Browser extension to curate, annotate, and discuss the most valuable content and ideas on the web. As individuals, teams and communities.

Effortless AI-assisted data labeling with AI support from YOLO, Segment Anything (SAM+SAM2/2.1+SAM3), MobileSAM!!

ksnip the cross-platform screenshot and annotation tool

The AI Datastore for Schemas, BLOBs, and Predictions. Use with your apps or integrate built-in Human Supervision, Data Workflow, and UI Catalog to get the most value out of your AI Data.

Open-source screenshot and screen recording for macOS. The free, native alternative to CleanShot X. Built with Swift 6.0 and SwiftUI.

⌘⌘ - A lightweight, native macOS screenshot tool that lives in your menu bar. Double-tap ⌘ Command to capture any region of your screen — instantly copied to clipboard, or annotate first with pen and mosaic tools.

Open Source Data Annotation & Labeling Tools

截图、录屏和文字识别工具，支持 macOS、Windows、Linux。Screenshots, screen recording, and OCR for macOS, Windows, and Linux.

Enhances construction site safety using YOLO for object detection, identifying hazards like workers without helmets or safety vests, and proximity to machinery or vehicles. HDBSCAN clusters safety cone coordinates to create monitored zones. Post-processing algorithms improve detection accuracy.

SnapCut（简截）——轻巧但不将就的 Windows 和 macOS 截图工作台：框选截图、长截图、区域录屏、钉图取色、标注、OCR 与翻译一体化。支持保留右键菜单和悬浮提示，数据永久留在本机。

AI Auto Annotation & YOLO Training Pipeline, End-to-end object detection auto-labeling and YOLO training platform. VLM-powered annotation with NVIDIA LocateAnything-3B, manual refinement, one-click YOLO training, video keyframe extraction, and model validation. Supports image and video.

Advanced text highlighter based on regexes. Useful for todos, annotations etc.