Data Labeling Python Packages

label-studio

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

cleanlab

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.

bbox-visualizer

Make drawing and labeling bounding boxes a piece of cake

segments-ai

Segments.ai Python SDK

auto-labeling-pipeline

doccano auto labeling pipeline helps doccano to annotate a document automatically.

tlabel

🦞 The World's First Sensor-Agnostic Tactile Data Annotation Toolkit — Load any tactile sensor, annotate visually, export a unified schema

composeml

A machine learning tool for automated prediction engineering. It allows you to easily structure prediction problems and generate labels for supervised learning.

doccano

Open source annotation tool for machine learning practitioners.

toloka-kit

Toloka-Kit is a Python library for working with Toloka API.

cleanlab-studio

Client interface to Cleanlab Studio

doccano-client

A simple client for doccano API.

potato-annotation

potato: the portable annotation tool

coral-annotation-tool

CAT: Coral Annotation Tool for Structure from Motion (SfM) Orthomosaic coral reef annotation.

hover

Label data at scale. Fun and precision included.

panlabel

Universal annotation converter

cleanlab-cli

Command line interface for all things Cleanlab Studio

langformers

🚀 Unified NLP Pipelines for Language Models

dash-annotate-cv

A Python library for computer vision annotation tasks using Dash

knowlyr-datalabel

Serverless annotation framework with LLM pre-labeling, inter-annotator agreement analysis & offline HTML interface. CLI + MCP ready.

example-package-elisno

The standard package for data-centric AI, machine learning with label errors, and automatically finding and fixing dataset issues in Python.

pyheartex

Deploying machine learning for Heartex or Label Studio

kern-refinery

The open-source data-centric IDE for NLP.

superpipe-py

build unstructured to structured data transformation pipelines

swiftlabel

Keyboard-first image classification tool for ML engineers