# LitSquare Ink MD

LitSquare Ink MD is a native macOS Markdown editor. Write in plain text, preview as you type, and export clean documents with themes and shortcuts.

Plain-text Markdown editing

Live preview with clean typography

Export & copy as rich text

Theme configuration you can share

Built for writing on macOS

A full-screen intro, then the whole product story.

LitSquare Ink MD starts simple on the first screen, then opens into a deeper native toolset for writing, previewing, exporting, citations, transcripts, automation, and AI-assisted editing.

Core Editing

Markdown editor built on AppKit and TextKit 2 for large-text editing.
Multi-window document workflow through macOS DocumentGroup.
Opens and edits .md, .mdx, .srt, .vtt, and plain text files.
Live Markdown styling for headings, bold, italic, underline, strikethrough, inline code, fenced code, and optional ==highlight==.
Formatting commands and shortcuts for bold, italic, bold+italic, underline, strikethrough, inline code, highlight, cycle heading, and remove heading.
Show Invisibles toggle.
Built-in find bar with next, previous, and use-selection-for-find.
Table of contents sidebar with heading-level filters and jump-to-heading.
Document and selection counts, including token estimates.
Dictation and text-to-speech for the selection or whole document.
Auto-reload of clean documents changed on disk.
Experimental dynamic untitled filename suggestions.

Preview and Export

Separate live Preview window.
Markdown preview with syntax highlighting, math via KaTeX, footnotes, relative links, and optional highlight syntax.
Preview templates that affect preview, print, HTML export, and PDF export.
Template import, remove, and reveal actions in Settings.
Export as HTML, PDF, RTF, and Word .docx.
Copy as rich text.
Create email using a rich-text body.

Insert and Reference Tools

Insert footnotes and named footnotes.
Insert images, links, and audio, video, or PDF media links.
Zotero integration for citations and footnotes from citations.
Image preview actions that create a caption or extract text under the image.
Insert Image as Text and Paste Image as Text using Apple Intelligence.
Smart pasted-image filename suggestions on supported macOS versions.

AI Features

Prompt window that runs on the selection, current paragraph, or full document.
Built-in commands for Proofread, Rewrite for clarity, Custom prompt, Summarize, Translate, Generate outline, Generate title options, Extract glossary, Extract actions, Generate front matter, Ask this document, and Convert to checklist.
Diff view before applying AI changes.
Support for Apple Intelligence, Ollama, and OpenAI-compatible APIs.
Per-command model settings and Keychain-backed API key storage.
Guardrails for proofread output and code-block preservation.

Transcript and Subtitle Tools

Import transcript from audio or video with macOS speech recognition.
Output transcript as Markdown, WebVTT, or SubRip.
Live transcription preview while importing.
Adjustable subtitle cue duration.
Remembers the last transcription language.

Settings, Themes, Help, and Automation

Settings tabs for General, Editor, Zotero, AI, Command, Theme, and Performance.
Adjustable editor font size, line height, wrap lines, reading mode, preview behavior, and export settings.
Theme editing with per-role colors plus JSON import and export via litsquareink.config.json.
Help center with in-app Markdown tutorials, what’s new, and Markdown flavor guides.
App Intents for Shortcuts and Siri, including document access, text replacement, selection formatting, export, and AI command execution.
Custom litsquareink:// deep links for opening files and folders.

Ready to write

Download LitSquare Ink MD for macOS.

Stay in plain text, keep your Markdown readable, and reach for preview, export, transcripts, citations, automation, or AI only when you need them.