nvALT
nvALT is a fork of the original Notational Velocity with some additional features and interface modifications by Brett Terpstra and ElasticThreads.
NVALT ADDITIONAL FEATURES Auto-pairing and selection wrapping for brackets and quotes ([],(),"",'') Pin a note to the preview while editing other notes Shortcut (CMD-Shift-L) for inserting [[Links]] Better MultiMarkdown 3 support (if installed locally) Right to Left support External editor support improved Simplenote Tag sync1 Textile and (Multi)Markdown support with Preview window (hold down Control to view temporarily) HTML source code tab in the Preview window for fast copy/paste to blogs, etc. Unique interface design changes Customizable HTML and CSS files for the Preview window Social note sharing via Peggd Convert imported URLs to Markdown, and optionally strip excess content with Readability Multi-note tagging with autocompletion Full-screen mode (requires OS X 10.5 or higher) Optional menubar and menubar-only modes Color schemes Black/White Low-contrast User customizable Collapse/Expand notes list and search field Improved readability with optional width limit and margins Really cool scrollbars Word Count (hold down Option to view temporarily) Working localizations (French, German, Portuguese)
