Description: Notekeys is a free and open-source note taking and organization software. It allows users to take notes, organize them into notebooks and categories, link notes together, attach files, and search through all their notes quickly.
Type: software
Pricing: Open Source
Description: Xodo is a free PDF reader and annotator for Windows, Linux, Android, iOS and web browsers. It allows you to view, edit, sign, and collaborate on PDF documents. Xodo is lightweight, fast, and has an intuitive, user-friendly interface.
Type: software