Lit Square Ink is a fast, native Markdown editor for macOS—built for writing notes, documentation, and long-form text comfortably
Lit Square Ink is a fast, native Markdown editor for macOS—built for writing notes, documentation, and long-form text comfortably.
Key features:
- Native Markdown editing with lightweight, responsive syntax styling.
- Table of contents sidebar generated from headings.
- Live Preview window with syntax highlighting for code blocks and math rendering (KaTeX).
- Standard macOS document workflow for `.md` and `.markdown` files.
- Find bar for in-document search.
- Copy as Rich Text and Export RTF for sharing Markdown as formatted text.
- Export HTML and PDF from the Preview window (with selectable templates).
- Reading mode, line wrap, font size/line height controls, and theme customization.
- Optional Prompt window to rewrite a selection/paragraph/document using Apple Intelligence (macOS 26+) or your own Ollama or Ai Compatible API protocol provider, with a diff preview before you apply changes.
Privacy:
- Works offline for editing, preview, and copy/export.
- If you use AI features with a remote provider, the selected text is sent to the endpoint you configure.
- API keys are stored in Keychain.