was successfully added to your cart.

Best in class Text Annotation Tool

NLP Lab LabelStudio LabelBox LightTag TagTog Prodigy
Who is the
Free version for?
Teams looking for an enterprise-grade, proven, full-featured data labeling platform. Used by individual data scientists and small annotation teams. Small teams and individuals looking to test capabilities or validate early-stage experiments. Individual users Open: Only public labels & datasets. No Free version available
Free edition limitations: Unlimited Features Free Forever Limited to a single organization and workspace Limited to 10k annotations Limited to single user & 500 labels/month Limited to public datasets No Free version available
Labeling Features:
Text labeling Free Free Free Free Free Paid
Image labeling Free Free Free N/A N/A Paid
Video labeling Free Free Free N/A N/A Paid
Audio labeling Free Free N/A N/A N/A Paid
Multi-lingual text labeling Free Free N/A Free Team Paid
Span annotations & overlapping entities Free Free Free Free Free Paid
Label relations & dependencies Free Free Free Free Free Paid
Projects & Teams:
Multiple projects Free Free Free Team Free Paid
Project grouping Free N/A N/A N/A N/A N/A
Project searching/filtering Free N/A Free N/A N/A N/A
Full API access Free Free Pro Team Team Paid
Task assignment Free Enterprise Free Team Free N/A
Task tagging Free N/A N/A Team N/A N/A
Task comments Free N/A Free N/A N/A N/A
Role based task status Free N/A N/A N/A Free N/A
Duplicate tasks detection Free N/A N/A N/A N/A N/A
Task searching/filtering Free Free N/A Team Free N/A
Guidelines Free Free Free Free Team N/A
Feedback & Comments on completions Free N/A Free N/A N/A N/A
Consensus Analysis/IA Agreement Free Enterprise Pro Team Free N/A
Quality review workflows Free Enterprise Pro Team Team Paid
Performance Dashboards Free Enterprise Free Team Free N/A
QA & collaboration Free Enterprise Pro N/A N/A N/A
AI-Assisted Text Labeling
Project configuration based on existing models and rules Free N/A N/A N/A N/A Paid
Rule editing interface Free N/A N/A N/A N/A N/A
Pre-annotations with model assisted labeling Free Support for 3rd party ML integration Enterprise Team Enterprise Paid
Active learning: auto-retrain models on the fly Free Enterprise, Support for 3rd party ML integration N/A N/A Pro Paid
Transfer learning: start from pre-trained models Free N/A N/A N/A N/A Paid
Bring your own models Free Support for 3rd party ML integration Enterprise Team Free Paid
Precision/Recall Reports for Trained Models Free N/A N/A N/A N/A Paid
Model Hub Integration Free N/A N/A N/A N/A N/A
Security & Privacy:
Role-based access controls Free Enterprise Pro Team Enterprise N/A
Role-based views Free Enterprise N/A Team Enterprise N/A
Annotation Versioning Free N/A N/A N/A N/A N/A
Full audit trail Free N/A N/A Enterprise Enterprise N/A
LDAP/AD integration - User import/Login Free Enterprise Enterprise Enterprise Enterprise N/A
Single Sign On - User import/Login Free Enterprise Pro Enterprise Enterprise N/A
On-Premise / Air-Gap Deployment Free Enterprise Enterprise Enterprise Enterprise Paid
Annotation on PDF and image documents:
Support for multi-page scanned or generated PDFs OCR N/A N/A N/A Pro N/A
Selectable PDFs OCR N/A N/A N/A Pro N/A
Scanned PDFs OCR N/A N/A N/A N/A N/A
Support for image annotation (png) OCR N/A N/A N/A N/A N/A
Text search in image documents OCR N/A N/A N/A N/A N/A
Multi line chunk annotations OCR N/A N/A N/A N/A N/A
Sticky token selection OCR N/A N/A N/A N/A N/A
Custom region annotation OCR N/A N/A N/A N/A N/A
Relations annotation OCR N/A N/A N/A N/A N/A
Zoom features OCR N/A N/A N/A N/A N/A
Healthcare features:
Pre-annotations with rules & regex Healthcare N/A N/A N/A N/A Paid
Pre-annotations with dictionaries Healthcare N/A N/A N/A Team Paid
Automatic detection of 100+ clinical and biomedical entities Healthcare N/A N/A N/A N/A N/A
Automatic detection of clinical assertion status detection (negation detection) Healthcare N/A N/A N/A N/A N/A
Automatic detection of 30+ healthcare-specific relation extraction Healthcare N/A N/A N/A N/A N/A
Automatic entity normalization (coding) to 10+ medical terminologies Healthcare N/A N/A N/A N/A N/A
Transfer learning for named entity recognition models Healthcare N/A N/A N/A N/A N/A
Ready to use healthcare-specific word, chunk, and sentence embeddings Healthcare N/A N/A N/A N/A N/A

Read more on how to choose the best text labeling tool for your needs here.

Editions Compared

COMMUNITY
FREE
Annotation Lab is a Free tool, with support for unlimited projects, users, documents, community models, teams, analytics, workflows, audit, No-Code Model Training & Active Learning.
  • Support for text, image, video, and audio annotations
  • Multi-lingual text labeling
  • Span annotations & overlapping entities
  • Label relations & dependencies
  • Unlimited projects, users, documents, models
  • Project grouping
  • Project searching/filtering
  • Full API access
  • Task assignment
  • Task tagging and comments
  • Role-based task status
  • Duplicate tasks detection
  • Feedback & Comments on completions
  • Consensus Analysis/IA Agreement
  • Quality review workflows
  • Performance Dashboards
  • Project configuration based on existing models
  • Pre-annotations with model-assisted labeling
  • Active learning: auto-retrain models on the fly
  • Transfer learning: start from pre-trained models
  • Bring your own models
  • Precision/Recall Reports for Trained Models
  • Model Hub Integration
  • Role-based access control
  • Annotation Versioning
  • Full audit trail
  • LDAP/AD integration – User import/Login
  • On-Premise / Air-Gap Deployment
HEALTHCARE
FREE trial
The Healthcare edition offer access to pre-trained healthcare models published on the NLP Models Hub.
  • All features from the Community library
  • Pre-annotations with rules & regex
  • Automatic detection of 400+ clinical and biomedical entities
  • Automatic detection of clinical assertion status detection (negation detection)
  • Automatic detection of 60+ healthcare-specific relation extraction
  • Automatic entity normalization (coding) to 10+ medical terminologies
  • Transfer learning for named entity recognition models
  • Ready to use healthcare-specific word, chunk, and sentence embeddings
VISUAL
FREE trial
The visual edition offers access to OCR features for image preprocessing and digitization, as well as to Visual NER based preannotation and model training.
  • All features from the Community library
  • Support for annotations on multi-page scanned or generated PDFs
  • Support for image annotation (png)
  • Text search in image documents
  • Multi line chunk annotations
  • Visual NER model training/tuning
  • Sticky token selection
  • Custom region annotation
  • Relations annotation
  • Text preannotation in image or PDF documents
Annotate Text & Images
  • High Productivity UI
  • Share Guidelines & Comments
  • Compare Versions & Reach Agreement Quickly
AI Assisted Annotation
  • Pre-Annotation: Never Start from Scratch
  • API Access: Integrate with your toolset
  • Combine Models, Rules, and Prompts
Train & Tune NLP Models
  • Auto NLP: Train as you go
  • Measure & Evaluate
  • Transfer Learning
Models, Rules, and Prompts Hub
  • Search, Filter, and Download
  • Private Hub
  • Playground
Manage Projects & Teams
  • Workflows & Reviews
  • Versioning & Audit Trails
  • Analytics
Enterprise Security & Privacy
  • Role-Based Access Control
  • Strong Authentication: MFA, AD/LDAP
  • Runs on Your Infrastructure

Watch & Learn