Annotary
Description: Annotary is an open-source annotation tool that allows users to add text annotations and comments to web pages, PDFs, images, and more. It has features like collaboration, private/public annotations, groups, hierarchical comments, rich text formatting, and works on any operating system.
Type: software
Pricing: Open Source
Google Keep
Description: Google Keep is a free note-taking service developed by Google. It allows users to create notes, lists, photos, audio notes and record reminders. Everything syncs seamlessly across devices. Key features include collaboration, labels, archiving notes, searching notes, location-based reminders.
Type: software