Inkiostro: Markdown Editor

Inkiostro is the Markdown editor that lets you focus on your ideas while providing all the tools to do it right.

Open, write, save. No subscriptions, no accounts, no tracking.

FORMULAS AND DIAGRAMS, RIGHT WHERE YOU WRITE
• LaTeX math with $ and $$, typeset by KaTeX — inline in a sentence or as a display block.
• Mermaid diagrams: a code block becomes a real flowchart, sequence or Gantt chart, drawn as you type.
• Everything renders live as you write, and carries over to every export.

TURN A NOTE INTO A FINISHED DOCUMENT
• PDF export with selectable text — formulas, diagrams and highlighted code included, never flattened into an image. The free version adds a small credit line in the page footer.
• HTML export: a single self-contained file that works offline, images and styles embedded. (Pro)
• EPUB export: a real ebook with a navigation table of contents, ready for Apple Books. (Pro)

WRITE THE WAY YOU LIKE
• Complete Markdown toolbar: headings, bold, italic, lists, tables and code blocks, one tap away.
• Smart tables with automatic pipe alignment as you type.
• 11 preview styles — GitHub, Dark, Sepia, Nord, Solarized, Terminal and more. All included, free.
• Find and replace, live word count, and a daily writing goal with no limits.
• Focus and Typewriter modes for immersive writing. (Pro)

YOUR FILES, YOUR RULES
• Unlimited documents. No cap, free or Pro.
• Import Markdown from any app and bring your whole library across.
• Color labels and custom tags, with filtering and grouping by tag.
• Native iCloud Drive sync between iPhone, iPad and Mac. Zero configuration.
• External folders: work directly inside any local or iCloud Drive folder. (Pro)

NEVER LOSE A DRAFT
• Version history: Inkiostro saves versions of your document while you write. Compare them line by line and restore any of them. (Pro)

INKIOSTRO PRO — ONE PURCHASE, NO SUBSCRIPTION
One purchase covers iPhone, iPad and Mac. Forever.
• Version history with line-by-line diff
• HTML and EPUB export
• Focus and Typewriter writing modes
• External folders, anywhere on your device or iCloud Drive
• 24 exclusive app themes that restyle the whole app
• Write with any font installed on your device

MADE FOR
• Developers: READMEs, documentation, technical notes with real diagrams
• Students and researchers: lecture notes with proper LaTeX formulas
• Writers and bloggers: distraction-free drafting in plain text
• Anyone tired of paying every month for a text editor

PRIVACY
Your documents live in your own iCloud Drive. No external servers, ever. Inkiostro collects only anonymous, aggregated usage statistics — never personal data and never the content of your documents — and you can turn them off in Settings.