| Key features | - Real-time collaborative merging of concurrent edits using Y.js CRDT
- Autosave one second after typing stops, or every five seconds if typing continues
- Preserves file encoding, line endings, YAML/TOML front matter, and reference-style links
- GitHub Flavored Markdown support including tables, task lists, and footnotes
- Mermaid diagram rendering with live preview
- Safe handling of untrusted external documents
- Remote image blocking until explicitly allowed by user
- Toggle between WYSIWYG and raw markdown view with Cmd-/
- Supports both Apple silicon and Intel Macs with macOS 14 or later
| - 350+ font styles including bold, italic, cursive, gothic, bubble, and aesthetic styles
- Live preview as you type
- Browse and search categorized styles
- One-click copy to clipboard
- Works on mobile and desktop
- Platform-specific guides for Instagram, TikTok, Discord, and gaming
- Shows compatibility and character limits for each style
- Browser-based with no installation required
- No account signup needed
- Make your own custom font combinations
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| What makes it different | - Only editor that merges AI agent edits in real time without breaking user workflow, using CRDT technology
- Native macOS app with WebKit bundled so no network calls needed
- WYSIWYG editor that saves as plain markdown files
- Preserves exact file bytes when opening and saving without editing
- Built with heavy AI assistance for reliability and correctness
| - Honest labeling of where each style breaks and which platforms reject it
- Real screenshots showing actual platform behavior, not invented results
- Treats display names and handles as separate fields with different restrictions
- True Unicode text that remains editable everywhere it's pasted
- Regularly updated guides based on platform testing rather than guesswork
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