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.

data-science machine-learning annotation data-validation exploratory-data-analysis weak-supervision outlier-detection labeling datasets data-cleaning active-learning data-quality data-profiling anomaly-detection data-curation data-annotation noisy-labels out-of-distribution-detection data-labeling data-centric-ai

• Updated Jan 13, 2026
• Python

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.

kubernetes data-science data machine-learning deep-learning image-annotation annotation video-annotation annotations data-analytics labeling datastore datasets annotation-tool data-annotation training-data

• Updated Jun 22, 2026
• Python

A list of tools for annotating data, managing annotations, etc.

nlp awesome computer-vision image-annotation annotations dataops awesome-list data-annotation

• Updated Aug 1, 2024

🍳 Recipes for the Prodigy, our fully scriptable annotation tool

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• Updated Aug 4, 2024
• Jupyter Notebook

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.

nginx machine-learning computer-vision deep-learning clustering mcp image-processing artificial-intelligence apis object-detection post-processing restful-api hazard-detection hdbscan data-annotation fastapi alert-system fastmcp yolo26

• Updated Nov 7, 2026
• Python

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.

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• Updated Sep 22, 2026
• Python

🧬 A JupyterLab extension for annotating data with Prodigy

nlp data-science machine-learning natural-language-processing computer-vision jupyter annotation artificial-intelligence spacy jupyterlab prodigy active-learning annotation-tool data-annotation labeling-tool machine-teaching

• Updated May 10, 2023
• TypeScript

The Wearables Development Toolkit - a development environment for activity recognition applications with sensor signals

time-series matlab machine-learning-algorithms activity-recognition wdk data-annotation wearable-computing recognition-chain

• Updated Jan 30, 2020
• MATLAB

NVIDIA CoC Autolabeler is an open autolabeling pipeline for autonomous vehicles that generates Chain-of-Causation reasoning labels and meta-actions from raw driving clips.

robotics nvidia dataset self-driving-car autonomous-driving autonomous-vehicles reasoning data-annotation auto-labeling vision-language-model alpamayo physical-ai chain-of-causation meta-actions

• Updated Jul 20, 2026
• Python

Social Media Mining Toolkit (SMMT) main repository

tweets annotation twitter-api data-acquisition spacy data-preprocessing gathering data-annotation

• Updated Nov 11, 2022
• Python

🔥 One of the most comprehensive open-source data annotation platform.

data-science machine-learning big-data deep-learning annotation data-collection labelling computervision annotation-tool data-annotation

• Updated Jul 26, 2022
• Java

Tornado is an open source Human-in-the-loop machine learning tool. It helps you label your dataset on the fly while training your model through a simple web user interface. It supports all data types: structured, text and image.

python machine-learning natural-language-processing sklearn keras artificial-intelligence machinelearning machine-learning-api ruby-on-rails dataannotations active-learning automl data-annotation activelearning interactive-machine-learning active-learning-module human-in-the-loop-machine-learning data-annotation-machine-learning data-annotation-tools

• Updated Apr 15, 2023
• Ruby

🐼 Steer your LLMs and agents at the token level: A web tool for token visualization & control, model inspection, installation-free harness, and LLM & agent trajectory annotation.

data-annotation llm-ui agent-trajectory agent-evaluation token-visualization model-inspection token-level-correction agent-trajectory-annotation agent-trajectory-annotation-tool

• Updated Nov 12, 2026
• JavaScript

Data-centric AI building blocks for computer vision applications

python machine-learning computer-vision deep-learning data-visualization data-annotation

• Updated Nov 11, 2026
• TypeScript

A system for prompted weak supervision. Alfred is a powerful tool that leverages large language models to accelerate data annotation.

data weak-supervision annotation-tool vlm data-annotation llm programmatic-weak-supervision prompting

• Updated Apr 3, 2025
• Python

PersianDataAnnotations is ASP.NET Core MVC & ASP.NET MVC Custom Localization DataAnnotations (Localized MVC Errors) for Persian(Farsi) language - فارسی سازی خطاهای اعتبارسنجی توکار ام.وی.سی. و کور.ام.وی.سی. برای نمایش اعتبار سنجی سمت کلاینت

mvc localization csharp aspnetcore nuget mvc5 persian iran asp-net-core asp-net net-mvc asp-net-core-mvc mvc6 dataannotations asp-net-mvc farsi data-annotations data-annotation localization-dataannotations localized-dataannotations

• Updated Dec 21, 2020
• C#

Visualization and Annotation Tool for ROS

visualization opengl ai robotics graphs plot undo-redo data-visualization artificial-intelligence ros plotting robot-operating-system rosbag physically-based-rendering data-annotation physically-based-shading order-independent-transparency

• Updated Feb 10, 2025
• C++

Lightweight self-hosted span annotation tool

visualization annotation annotations web-interface annotation-tool data-annotation token-classification llm word-classification span-labeling

• Updated Sep 18, 2026
• Python

A free and opensource yolov8, yolo11 and yolo26 all in one training tool that automates file structure and yaml files, auto labeling with SAM2, brush system for uninterupted labeling, a strong modular augmentation system where anybody can write their own filters and training. Without having to open terminal.

training open-source computer-vision image-annotation inference yolo object-detection opencv-python data-annotation labeling-tool dataset-management yolo-gui ultralytics yolov8 yolo11 yolov11 yolo26

• Updated Feb 26, 2026
• Python

Use Large Language Models like OpenAI's GPT-3.5 for data annotation and model enhancement. This framework combines human expertise with LLMs, employs Iterative Active Learning for continuous improvement, and integrates CleanLab (Confident Learning) to ensure high-quality datasets and better model performance

nlp gpt bert active-learning data-annotation fine-tuning dvc confident-learning noisy-labels mlflow cleanlab gpt-4 llm gpt-3-5-turbo

• Updated Sep 11, 2023
• Python