Nota6
Nota6
Free
Must-have Markdown reader for the AI era — 12-doc Library built in. Mermaid, KaTeX, outline, code highlighting.
Zero telemetry. Fully offline.
iPhone, iPad, and Mac.
Reader-first Markdown app for the AI era — with a built-in Reference Library so it's useful the moment you open it.
BUILT-IN LIBRARY (12 references, all offline)
The welcome screen has a "Browse Library" button. Tap it and you have 12 curated documents available immediately, in English and Simplified Chinese:
• Markdown / GFM syntax references
• Mermaid Diagram Gallery — 10 diagram types (flowchart, sequence, class, state, ER, gantt, pie, mindmap, timeline, git graph), each with source + rendered output
• KaTeX Math Reference — symbols, operators, matrices, common formulas
• Code Highlighting Gallery — Swift, Python, TypeScript, Go, Rust, SQL, and more (190+ languages bundled)
• Reading AI-Generated Markdown — four shapes of agent output and how to read each
• CLAUDE.md & AGENTS.md spec — how AI-instruction files work
• README Patterns, Design Doc & RFC Patterns
• Nota6 Tips & Tricks, iPad Keyboard Shortcuts, Themes Showcase
These aren't placeholders — they're useful reading material for anyone who works with AI coding assistants and the .md files they produce.
WHAT MAKES IT DIFFERENT FROM A BROWSER
• Mermaid diagrams, KaTeX math, syntax-highlighted code, all rendered offline. No network requests during rendering. Safari Reader can't do Mermaid; Nota6 can.
• Auto-refresh on file change with smart scroll anchoring: when an external editor rewrites the file, the preview re-renders in place and stays at the same heading even if the document length shifts.
• Open files from anywhere via the system share sheet, Files, iCloud Drive, or the "Open in Nota6" action.
iOS-NATIVE INTEGRATIONS
• Shortcuts / App Intents: "Open Markdown File" and "Export Markdown as HTML" are first-class Shortcuts actions. Automate from Siri or your iPad keyboard.
• iCloud sync: your theme, font, width, and Custom-theme colors follow you across iPhone, iPad, and Mac.
• Workspace full-text search (⌘⇧F) across an entire folder of .md files.
• Bookmark self-heal: if AI tooling renames or moves files in your workspace, Nota6 reattaches by content fingerprint instead of breaking.
• Deep links: nota6://open?path=...&heading=... jumps to a specific heading.
READING EXPERIENCE
• Quick Edit: switch to Source, correct raw Markdown, and save with Command-S on a hardware keyboard. Nota6 preserves the original encoding, BOM, and line endings, and warns before overwriting external changes.
• 5 themes: GitHub · Paper · Notion · Terminal · Custom. Custom lets you pick body + monospace fonts and 4 colors (background, text, heading, code block) right inside the app.
• 4 font sizes, 3 reading widths, Light / Dark / Auto appearance.
• Outline panel with live filter and scroll-synced active heading; floating breadcrumb when the outline is closed.
• Per-file reading-progress dots in the workspace sidebar.
• Click-to-zoom for Mermaid diagrams and images; long-press to Copy or Save as PNG.
iPAD HARDWARE KEYBOARD
Full shortcut set: ⌘O · ⇧⌘O · ⌘F · ⌘P · ⌥⌘O · ⌘R · ⌘[ / ⌘] · ⌘W. Press-and-hold ⌘ for the discoverability HUD.
EXPORT
PDF or self-contained HTML via the system share sheet — straight to Files, Mail, Slack, Notion, or any other destination.
PRIVACY
No analytics. No third-party SDKs. No network requests unless the document itself references remote images. Rendering libraries (KaTeX, Mermaid, highlight.js) are bundled offline. English + Simplified Chinese.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
1.7.0 adds Quick Edit and a smarter workspace sidebar.
• Switch to Source, make a small Markdown correction, and save with Command-S on a hardware keyboard.
• Nota6 preserves the original text encoding, BOM, and line endings.
• Unsaved-change prompts protect edits when switching files or leaving Source. External disk changes require explicit overwrite.
• Opening a file inside the workspace now expands and reveals it automatically. Files elsewhere appear as “Outside Current Folder” with an action to browse their containing folder.
Built-in Library and sample documents remain read-only.
The developer, 笑天 刘, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 笑天 刘
- Size
- 11.3 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Simplified Chinese
- Age Rating
4+
- 4+
- Copyright
- © Liu XT
