Open Source Emacs-Lisp Database Software

RefDB is a reference database and bibliography tool for SGML, XML, and LaTeX documents, sort of a Reference Manager or BibTeX for markup languages. It is portable and known to run on Linux, Free/NetBSD, OSX, Solaris, and Windows/Cygwin.

Emacs Photo Database provides functions to manage a collection of photographic films, negatives, and prints stored in a SQL database. It is targeted at fine-art photographers and other people who use a wet-process workflow instead of digital imaging.

A web application to visualize the Org-Roam database. For org-roam v2, use org-roam-ui, org-roam-server only works with org-roam v1. Use M-x org-roam-server-mode RET to enable the global mode. It will start a web server. Although it will automatically reload if there is a change in the database, sometimes it fails to establish a connection. If it does not reload after org-roam-build-cache, you can do it manually by clicking the reload button which will reload the data, rebuild the graph and refresh connections. The graph utilizes org-roam protocol which means if you click on one of the nodes, it will open the corresponding file in Emacs. For this feature to work, org-roam protocol should be configured in the system.