Boostnote - Boostnote is an open-source note-taking app.
Zotero - Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.
Supernotes - The fastest way to take notes and collaborate with friends. Create notecards with Markdown, LaTeX, images, emojis and more. Get started for free!
Qiqqa - Qiqqa is a free research and reference management software. It can be used in many organizational projects from the academic to the personal to the business endeavor. Read more about Qiqqa.
Draft - A tool for developers to create cloud-native applications on Kubernetes
JabRef - Graphical Java application for managing bibtex (. bib) databases.JabRef · JabRef Help · JabRef | Blog · OpenOffice/LibreOffice .