Workflowy - A better way to organize your mind.
genei.io - AI-generated summaries for any article or research paper.
A5 - Takes notes in your browser. Elegant & simple.
RadaeePDF - RadaeePDF is a library for developers who want to render, manipulate, annotate PDF files on Android, iOS and Windows.
Notepin - Extremely simple note-taking + blogging ✍️
Anvil PDF Filling API - The easiest way to programmatically populate any PDF