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
46 Like nvALT A fork of the original Notational Velocity with some additional features and interface modifications. Free Open Source Mac OS X MarkDown support Integrated Search Sync with Simplenote