digital annotation software for professionals - AI tools

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

GoodAnnotations provides AI-powered tools for drawing, editing, and annotating PDFs and screenshots to boost productivity and collaboration in digital workflows.

• Other

Anoto provides digital smartpens and writing solutions that instantly capture handwritten content from paper to digital devices, bridging the gap between analog and digital worlds.

• Contact for Pricing

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$

Hylinker is a browser extension that enables users to annotate webpages and PDFs, connecting notes, images, and videos with bi-directional links. It supports integration with popular note apps, offering both offline-first capabilities and real-time synchronization across devices.

• Freemium
• From 2$

Digital Notes is a privacy-focused note-taking app that provides offline access, instant syncing, and real-time collaboration for individuals, families, and teams.

• Paid
• From 5$

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

• Freemium

Keylabs is a comprehensive data annotation platform that combines AI-assisted tools for image and video labeling with advanced management capabilities. The platform offers high-precision annotation services across multiple industries with up to 99.9% accuracy.

• Free Trial

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

Diigo is an AI-powered research and knowledge management tool that helps users collect, annotate, organize, and share online resources efficiently.

• Freemium

Sequence offers outsourced image annotation, data labeling, and classification services to enhance machine learning models for data science teams. Start with a free trial to improve dataset accuracy and completeness.

• Free Trial

Vionote is a smart camera app for iOS that adds text notes, timestamps, and GPS info directly onto photos and videos, perfect for documentation and visual note-taking.

• Other