Universal annotation platform

Annotate documents 10x faster with AI

Create high-quality annotations for entities, relations, events, and attributes. Collaborate with your team and export to BRAT, CoNLL, JSON, and more.

Start annotating
Upload Documents

Trusted by fast-growing startups

Workflow

Annotate documents with AI assistance

Our platform helps you create high-quality annotations faster. Define schemas, annotate with AI suggestions, and collaborate with your team seamlessly.

Start annotating in minutes

Upload your documents, configure your annotation schema, and begin annotating. AI suggestions help you work faster while maintaining quality.

$annotate upload document.pdf
Uploading document...
Extracting text: 100% (1234/1234), done.
Analyzing document structure...
Loading AI annotation models...
✓ Document ready for annotation

Create your annotation schema

Define entity types, relations, events, and attributes with custom colors and hotkeys. Import existing BRAT configurations or start from scratch.

document.txt
// AI Annotation Suggestions
// Entity: PERSON, Location: 45-52
// Accept all suggestions to create annotations
- John Smith visited Paris in 2023.
- // No annotation
+ John Smith visited Paris in 2023.
+ // Entity: PERSON (John Smith)
+ // Entity: LOCATION (Paris)
+ // Entity: DATE (2023)
// or reject individual suggestions

Annotate with AI-powered suggestions

Get intelligent suggestions for entities, relations, and events. Accept or reject suggestions with one click. Work 10x faster with AI assistance.

Collaborate. Export. Integrate.

Work with your team in real-time, export to standard formats, and integrate with your ML pipeline. Built for research teams and annotation projects.

Learn More

Export formats

Real-time collaboration

See your teammates' annotations as they work. Track inter-annotator agreement, resolve conflicts, and create gold standard datasets together.

Export to any format

Export annotations to BRAT, CoNLL, JSON, or CSV. Import existing annotations. Seamlessly integrate with your ML training pipeline.

Features

Stop manual annotation. Start annotating smarter.

Our platform handles document processing, AI suggestions, and collaboration workflows. Focus on domain expertise, not repetitive clicking.

Built for annotation teams and researchers

From solo annotators to large research teams. Trusted by NLP researchers, data scientists, and annotation projects that need quality and speed.

Used by research teams worldwide

Trusted by NLP researchers, data scientists, and annotation teams. Create high-quality training datasets 10x faster with AI assistance.

Supporting multiple annotation formats

Export to BRAT, CoNLL, JSON, CSV. Import existing annotations. Compatible with standard NLP tools and frameworks.

Getting Started

Upload. Configure. Annotate. Export.

Get started with document annotation in three simple steps

Configure annotation schema

Upload your documents

Upload text files, PDFs, or DOCX documents. Our platform automatically extracts text and prepares it for annotation. Organize documents in collections.

Configure annotation schema

Configure your annotation schema

Define entity types, relations, events, and attributes. Customize colors, hotkeys, and constraints. Import existing BRAT configurations or create new ones.

Configure annotation schema

Start annotating with AI assistance

Annotate documents with intelligent AI suggestions. Collaborate with your team in real-time. Export to BRAT, CoNLL, JSON, or CSV formats.

Testimonials

Hear from our research community

Researchers and annotation teams trust our platform daily. Discover how teams accelerate annotation projects while maintaining quality and consistency.

The AI-powered annotation suggestions have revolutionized our research workflow. We can now annotate datasets 10x faster while maintaining quality. A game-changer for NLP research teams.

Dr. Sarah Chen

Dr. Sarah Chen

NLP Researcher at University

The collaborative annotation features have drastically improved our team productivity. Real-time collaboration and conflict resolution make it easy to create gold standard datasets. Highly recommend for annotation projects.

Dr. Michael Rodriguez

Dr. Michael Rodriguez

Data Scientist at Research Lab

As a ML team, we need high-quality training data fast. The annotation platform helps us do just that. Our annotation speed has doubled with AI suggestions. Essential tool for any ML project.

Dr. Priya Sharma

Dr. Priya Sharma

ML Engineer at Tech Company

The export capabilities have made integrating with our ML pipeline seamless. BRAT, CoNLL, JSON exports work perfectly. Must-have for any annotation project.

Dr. James Wilson

Dr. James Wilson

Research Lead at AI Lab

The annotation schema configuration is incredibly flexible. We can define complex entity hierarchies and relation constraints. Perfect for our domain-specific NLP research.

Dr. Lisa Anderson

Dr. Lisa Anderson

Computational Linguist

The inter-annotator agreement metrics have been invaluable.We can now track annotation quality and identify training needs. Essential for maintaining annotation standards.

Dr. Robert Kim

Dr. Robert Kim

Research Scientist

By integrating #GreenTech's sustainable energy solutions, we've seen a significant reduction in carbon footprint.Leading the way in eco-friendly business practices. Pioneering change in the industry.

Carlos Gomez

Carlos Gomez

Head of R&D at EcoInnovate

The AI-powered annotation suggestions have revolutionized our research workflow. We can now annotate datasets 10x faster while maintaining quality. A game-changer for NLP research teams.

Dr. Sarah Chen

Dr. Sarah Chen

NLP Researcher at University

The collaborative annotation features have drastically improved our team productivity. Real-time collaboration and conflict resolution make it easy to create gold standard datasets. Highly recommend for annotation projects.

Dr. Michael Rodriguez

Dr. Michael Rodriguez

Data Scientist at Research Lab

As a ML team, we need high-quality training data fast. The annotation platform helps us do just that. Our annotation speed has doubled with AI suggestions. Essential tool for any ML project.

Dr. Priya Sharma

Dr. Priya Sharma

ML Engineer at Tech Company

The export capabilities have made integrating with our ML pipeline seamless. BRAT, CoNLL, JSON exports work perfectly. Must-have for any annotation project.

Dr. James Wilson

Dr. James Wilson

Research Lead at AI Lab

The annotation schema configuration is incredibly flexible. We can define complex entity hierarchies and relation constraints. Perfect for our domain-specific NLP research.

Dr. Lisa Anderson

Dr. Lisa Anderson

Computational Linguist

The inter-annotator agreement metrics have been invaluable.We can now track annotation quality and identify training needs. Essential for maintaining annotation standards.

Dr. Robert Kim

Dr. Robert Kim

Research Scientist

By integrating #GreenTech's sustainable energy solutions, we've seen a significant reduction in carbon footprint.Leading the way in eco-friendly business practices. Pioneering change in the industry.

Carlos Gomez

Carlos Gomez

Head of R&D at EcoInnovate

The AI-powered annotation suggestions have revolutionized our research workflow. We can now annotate datasets 10x faster while maintaining quality. A game-changer for NLP research teams.

Dr. Sarah Chen

Dr. Sarah Chen

NLP Researcher at University

The collaborative annotation features have drastically improved our team productivity. Real-time collaboration and conflict resolution make it easy to create gold standard datasets. Highly recommend for annotation projects.

Dr. Michael Rodriguez

Dr. Michael Rodriguez

Data Scientist at Research Lab

As a ML team, we need high-quality training data fast. The annotation platform helps us do just that. Our annotation speed has doubled with AI suggestions. Essential tool for any ML project.

Dr. Priya Sharma

Dr. Priya Sharma

ML Engineer at Tech Company

The export capabilities have made integrating with our ML pipeline seamless. BRAT, CoNLL, JSON exports work perfectly. Must-have for any annotation project.

Dr. James Wilson

Dr. James Wilson

Research Lead at AI Lab

The annotation schema configuration is incredibly flexible. We can define complex entity hierarchies and relation constraints. Perfect for our domain-specific NLP research.

Dr. Lisa Anderson

Dr. Lisa Anderson

Computational Linguist

The inter-annotator agreement metrics have been invaluable.We can now track annotation quality and identify training needs. Essential for maintaining annotation standards.

Dr. Robert Kim

Dr. Robert Kim

Research Scientist

By integrating #GreenTech's sustainable energy solutions, we've seen a significant reduction in carbon footprint.Leading the way in eco-friendly business practices. Pioneering change in the industry.

Carlos Gomez

Carlos Gomez

Head of R&D at EcoInnovate

The AI-powered annotation suggestions have revolutionized our research workflow. We can now annotate datasets 10x faster while maintaining quality. A game-changer for NLP research teams.

Dr. Sarah Chen

Dr. Sarah Chen

NLP Researcher at University

The collaborative annotation features have drastically improved our team productivity. Real-time collaboration and conflict resolution make it easy to create gold standard datasets. Highly recommend for annotation projects.

Dr. Michael Rodriguez

Dr. Michael Rodriguez

Data Scientist at Research Lab

As a ML team, we need high-quality training data fast. The annotation platform helps us do just that. Our annotation speed has doubled with AI suggestions. Essential tool for any ML project.

Dr. Priya Sharma

Dr. Priya Sharma

ML Engineer at Tech Company

The export capabilities have made integrating with our ML pipeline seamless. BRAT, CoNLL, JSON exports work perfectly. Must-have for any annotation project.

Dr. James Wilson

Dr. James Wilson

Research Lead at AI Lab

The annotation schema configuration is incredibly flexible. We can define complex entity hierarchies and relation constraints. Perfect for our domain-specific NLP research.

Dr. Lisa Anderson

Dr. Lisa Anderson

Computational Linguist

The inter-annotator agreement metrics have been invaluable.We can now track annotation quality and identify training needs. Essential for maintaining annotation standards.

Dr. Robert Kim

Dr. Robert Kim

Research Scientist

By integrating #GreenTech's sustainable energy solutions, we've seen a significant reduction in carbon footprint.Leading the way in eco-friendly business practices. Pioneering change in the industry.

Carlos Gomez

Carlos Gomez

Head of R&D at EcoInnovate

#TrendSetter's market analysis AI has transformed how we approach fashion trends.Our campaigns are now data-driven with higher customer engagement. Revolutionizing fashion marketing.

Aisha Khan

Aisha Khan

Chief Marketing Officer at Fashion Forward

Implementing #MediCareAI in our patient care systems has improved patient outcomes significantly.Technology and healthcare working hand in hand for better health. A milestone in medical technology.

Tom Chen

Tom Chen

Director of IT at HealthTech Solutions

#LearnSmart's AI-driven personalized learning plans have doubled student performance metrics.Education tailored to every learner's needs. Transforming the educational landscape.

Sofia Patel

Sofia Patel

CEO at EduTech Innovations

With #CyberShield's AI-powered security systems, our data protection levels are unmatched.Ensuring safety and trust in digital spaces. Redefining cybersecurity standards.

Jake Morrison

Jake Morrison

CTO at SecureNet Tech

#DesignPro's AI has streamlined our creative process, enhancing productivity and innovation.Bringing creativity and technology together. A game-changer for creative industries.

Nadia Ali

Nadia Ali

Product Manager at Creative Solutions

#VentureAI's insights into startup ecosystems have been invaluable for our growth and funding strategies.Empowering startups with data-driven decisions. A catalyst for startup success.

Omar Farooq

Omar Farooq

Founder at Startup Hub

#TrendSetter's market analysis AI has transformed how we approach fashion trends.Our campaigns are now data-driven with higher customer engagement. Revolutionizing fashion marketing.

Aisha Khan

Aisha Khan

Chief Marketing Officer at Fashion Forward

Implementing #MediCareAI in our patient care systems has improved patient outcomes significantly.Technology and healthcare working hand in hand for better health. A milestone in medical technology.

Tom Chen

Tom Chen

Director of IT at HealthTech Solutions

#LearnSmart's AI-driven personalized learning plans have doubled student performance metrics.Education tailored to every learner's needs. Transforming the educational landscape.

Sofia Patel

Sofia Patel

CEO at EduTech Innovations

With #CyberShield's AI-powered security systems, our data protection levels are unmatched.Ensuring safety and trust in digital spaces. Redefining cybersecurity standards.

Jake Morrison

Jake Morrison

CTO at SecureNet Tech

#DesignPro's AI has streamlined our creative process, enhancing productivity and innovation.Bringing creativity and technology together. A game-changer for creative industries.

Nadia Ali

Nadia Ali

Product Manager at Creative Solutions

#VentureAI's insights into startup ecosystems have been invaluable for our growth and funding strategies.Empowering startups with data-driven decisions. A catalyst for startup success.

Omar Farooq

Omar Farooq

Founder at Startup Hub

#TrendSetter's market analysis AI has transformed how we approach fashion trends.Our campaigns are now data-driven with higher customer engagement. Revolutionizing fashion marketing.

Aisha Khan

Aisha Khan

Chief Marketing Officer at Fashion Forward

Implementing #MediCareAI in our patient care systems has improved patient outcomes significantly.Technology and healthcare working hand in hand for better health. A milestone in medical technology.

Tom Chen

Tom Chen

Director of IT at HealthTech Solutions

#LearnSmart's AI-driven personalized learning plans have doubled student performance metrics.Education tailored to every learner's needs. Transforming the educational landscape.

Sofia Patel

Sofia Patel

CEO at EduTech Innovations

With #CyberShield's AI-powered security systems, our data protection levels are unmatched.Ensuring safety and trust in digital spaces. Redefining cybersecurity standards.

Jake Morrison

Jake Morrison

CTO at SecureNet Tech

#DesignPro's AI has streamlined our creative process, enhancing productivity and innovation.Bringing creativity and technology together. A game-changer for creative industries.

Nadia Ali

Nadia Ali

Product Manager at Creative Solutions

#VentureAI's insights into startup ecosystems have been invaluable for our growth and funding strategies.Empowering startups with data-driven decisions. A catalyst for startup success.

Omar Farooq

Omar Farooq

Founder at Startup Hub

#TrendSetter's market analysis AI has transformed how we approach fashion trends.Our campaigns are now data-driven with higher customer engagement. Revolutionizing fashion marketing.

Aisha Khan

Aisha Khan

Chief Marketing Officer at Fashion Forward

Implementing #MediCareAI in our patient care systems has improved patient outcomes significantly.Technology and healthcare working hand in hand for better health. A milestone in medical technology.

Tom Chen

Tom Chen

Director of IT at HealthTech Solutions

#LearnSmart's AI-driven personalized learning plans have doubled student performance metrics.Education tailored to every learner's needs. Transforming the educational landscape.

Sofia Patel

Sofia Patel

CEO at EduTech Innovations

With #CyberShield's AI-powered security systems, our data protection levels are unmatched.Ensuring safety and trust in digital spaces. Redefining cybersecurity standards.

Jake Morrison

Jake Morrison

CTO at SecureNet Tech

#DesignPro's AI has streamlined our creative process, enhancing productivity and innovation.Bringing creativity and technology together. A game-changer for creative industries.

Nadia Ali

Nadia Ali

Product Manager at Creative Solutions

#VentureAI's insights into startup ecosystems have been invaluable for our growth and funding strategies.Empowering startups with data-driven decisions. A catalyst for startup success.

Omar Farooq

Omar Farooq

Founder at Startup Hub

Build more. Pay less. Scale smart.

Try free for 14 days with full access to all features. Upgrade only when your AI agent proves value.

TeamPopular

$29/month

Ideal for research teams and annotation projects

Start Free Trial

  • Unlimited documents
  • Unlimited collections
  • AI-powered suggestions
  • Real-time collaboration
  • Export to BRAT, CoNLL, JSON, CSV
  • Inter-annotator agreement metrics
  • Annotation versioning
  • Team management

Enterprise

Custom/month

Best for large organizations and research institutions

Contact Sales

Everything in Startup +

  • Unlimited everything
  • Advanced analytics
  • Custom integrations
  • Priority support
  • Dedicated infrastructure
  • SLA guarantees

Free

$0/month

Perfect for individual researchers

Get Started

Get Started today:

  • Up to 100 documents
  • Up to 5 collections
  • Basic annotation features
  • Export to JSON
  • Single user

Frequently Asked Questions

Answers to common questions about our annotation platform. If you have any other questions, please don't hesitate to contact us.

Start annotating your documents 10x faster

Stop manual annotation. Let AI handle the suggestions. Start annotating smarter today, completely free.