Heyday - An automatic journal that makes remembering beautiful & fun
Zotero - Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.
Qlearly - A modern bookmarks and tabs manager ✨
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.
Toby - Better Than Bookmarks
JabRef - Graphical Java application for managing bibtex (. bib) databases.JabRef · JabRef Help · JabRef | Blog · OpenOffice/LibreOffice .