152 Like TiddlyWiki TiddlyWiki is a highly customizable notewiki for capturing, organising and sharing complex information. Free Open Source Mac OS X Windows Linux BSD Web Self-Hosted Xfce MarkDown support Multiple languages Encrypted Notes Wiki like interface
148 Like CherryTree A hierarchical note taking application, featuring rich text and syntax highlighting, storing data in a single xml or sqlite file. Free Open Source Windows Linux Portable Multiple languages Integrated Search Tablet support Export to PDF Syntax Highlighting Data portability
35 Like TreeDBNotes TreeDBNotes is a powerful and easy-to-use personal database program, Word Processor with Tree Structure. User interface in 21 languages available. Freemium Windows Portable Multiple languages