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$

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$