collaborative text annotation tool - AI tools

CATMA is a free, browser-based platform designed for collaborative text annotation, analysis, and visualization, ideal for qualitative and quantitative research in the digital humanities.

• Free

tagtog is a versatile text annotation platform designed for creating AI training data, supporting manual and automatic annotation, collaboration, and PDF processing.

• Freemium

Annotations is a Mac application that simplifies document annotation with highlights, keywords, and notes while maintaining document clarity, designed for researchers, students, and data analysts.

• Free

Collabwriting streamlines online research by enabling users to highlight, save, share, and collaborate on web content and PDFs, featuring AI-powered search.

• Freemium

I, Librarian is an online reference manager and PDF organizer that centralizes document storage, enables full-text search, and facilitates private group collaboration for students and research professionals.

• Other

EduPad is a free collaborative text editor based on EtherPad that allows multiple users to edit documents simultaneously with real-time visibility of edits, requiring no registration.

• Free

Twiddla is a browser-based online whiteboard that offers real-time collaboration, co-browsing, and annotation for education and remote teams, without requiring plug-ins or sign-ups.

• Free Trial

Vimageo offers advanced tools for image and video annotation, enhancing media analysis and collaboration through features like AI assistance and cloud integration.

• Freemium
• From 5$

DiscoverText is a cloud-based text analytics software that combines human annotation and machine learning to sort, clean, and analyze large volumes of unstructured text data. It offers multilingual features, document redaction, and custom classifier creation.

• Freemium

Commented.io is a collaborative platform enabling teams to add comments and annotations directly onto live web pages and mobile apps for streamlined feedback and faster project development.

• Free Trial
• From 4$