Zuunote - A web-based and Markdown-based note-taking app that's reimagining writing experience in Markdown that everyone can enjoy.
Zotero - Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.
Typora - A minimal Markdown reading & writing app.
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.
Obsidian.md - A second brain, for you, forever. Obsidian is a powerful knowledge base that works on top of a local folder of plain text Markdown files.
JabRef - Graphical Java application for managing bibtex (. bib) databases.JabRef · JabRef Help · JabRef | Blog · OpenOffice/LibreOffice .