Quirely Markdown+LaTeX Editor

Quirely Markdowns is the document editor that stores everything as Markdown. Quirely Markdowns is a native Markdown app for Mac, iPad, and iPhone — built for people who care how their writing looks and reads. It stays out of your way when you want to read, and hands you real tools when you want to edit. A CALMER READER Open a file and just read. Quirely renders clean, typographic Markdown — it never forces you into a split screen or a cramped editor when all you want is to take in the page. Switch to Code, Edit, or Split only when you choose. Quick Look support lets you preview .md files straight from Finder, without even opening the app. RENDERING THAT ACTUALLY WORKS - Mermaid diagrams: flowcharts, sequence diagrams, and more — rendered live and styled to your theme. - LaTeX / KaTeX math: inline and block equations, typeset beautifully. - Code blocks with syntax highlighting for dozens of languages. - Tables, task lists, footnotes, callouts, and full GitHub-flavored Markdown. EDIT LIKE A PRO - Four modes: View (read), Code (raw source), Edit (block editor), and Split (write and watch it render). - Word-processor formatting: bold, italic, underline, strikethrough, highlight, links, super/subscript — with a font-size slider and theme-aware text and highlight colors. - Drag-and-drop block editing: reorder paragraphs, lists, tables, and diagrams by hand. - Visual Mermaid editing: drag nodes on a canvas, add edges, and recolor — no syntax required. - Spreadsheet functions in tables: type =SUM(A1:A3), =AVERAGE, =IF and more, with a full function keypad on Mac. - Nested lists that mix ordered, bulleted, and checklist levels. MAKE IT YOURS Ten hand-tuned themes — light and dark — recolor every token: headings, code, links, table borders, even diagram colors. Duplicate any theme and edit every color, font, and size. Switch live; no restart. A REAL WORKSPACE - Open a folder of notes with file navigation, backlinks, and tabs. - Search by meaning (semantic search) and by exact full-text match. - Version history with rendered diffs — see exactly what changed between saves. - Mark positions to insert text across documents. ON-DEVICE AI (Pro) Draft, rewrite, and synthesize across your notes with Apple Intelligence — on-device, no API fees, no account. Ask AI about your whole workspace, or compose inline as you write. EXPORT & SHARE Export to polished HTML or paginated PDF with your theme, math, and diagrams intact. PRIVATE BY DESIGN Everything runs on your device. Your files stay plain Markdown you own — account. ONE APP, EVERY DEVICE Universal for Mac, iPad, and iPhone. One-time purchases — never a subscription. (Some editing tools, like the block inspector and the spreadsheet function keypad, are richest on iPad and Mac; formulas work everywhere by typing.) Write in Markdown. Read it beautifully.