Logseq

For daily-journal people who think in bullets. In Logseq every line is a block that can be linked, referenced elsewhere and folded away, which suits meeting notes and research logs that grow sideways rather than top to bottom. It is open source and works with Markdown and Org-mode files, so the file-based version keeps your notes readable outside the app. The project is mid-transition, and that matters before you commit. Its new database version is in beta with an explicit warning that data loss is possible, so anyone starting now should keep backups and know which version they installed.