Powerful and efficient Computer Vision Annotation Tool (CVAT)

Open source text annotation tool for machine learning practitioner.

Visual Object Tagging Tool: An electron app for building end to end Object Detection Models from Images and Videos.

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

Labelbox is the fastest way to annotate data to build and ship computer vision applications.

Annotate quickly images.

YEDDA: A Lightweight Collaborative Text Span Annotation Tool. Code for ACL 2018 Best Demo Paper Nomination.

RectLabel - An image annotation tool to label images for bounding box object detection and segmentation.

The Official WebAnno Repository

A curated list of awesome data labeling tools

Automatic Summarization of Resumes with NER -> Evaluate resumes at a glance through Named Entity Recognition

🔧 A curated list of awesome dataset tools

Personal Cancer Genome Reporter (PCGR)

INCEpTION provides a semantic annotation platform offering intelligent annotation assistance and knowledge management.

An infinitely customizable image annotation library built on React

🍳 Recipes for the Prodigy, our fully scriptable annotation tool

FoLiA Linguistic Annotation Tool -- Flat is a web-based linguistic annotation environment based around the FoLiA format (http://proycon.github.io/folia), a rich XML-based format for linguistic annotation. Flat allows users to view annotated FoLiA documents and enrich these documents with new annotations, a wide variety of linguistic annotation types is supported through the FoLiA paradigm.

Boobs - YOLO BBox Annotation Tool

ML data annotations made super easy for teams. Just upload data, add your team and build training/evaluation dataset in hours.

Python module for data scientists for quick creating annotation projects.

🧬 A JupyterLab extension for annotating data with Prodigy

开源的标注工具大全（含2D图像/视频/3D点云等）

Label Objects and Save Time (LOST) - Design your own smart Image Annotation process in a web-based environment.

Plug and play for visual intelligence

Machine Learning Image Annotation Tool

A modular annotation tool for genomic variants

🏖TagEditor - Annotation tool for spaCy

Wearables Development Toolkit

An automatic webcam based image annotation tool for training quality deep learning/machine learning custom object detectors using state of the art architectures like Retinanet, Faster RCNN, Dlib's DNN mmod etc.