Julsai
Markdown, made for deep focus
Only for Mac
Free
Mac
Write and read Markdown in one calm, local-first workspace with focused editing and rich document rendering.
Julsai is a focused Markdown editor for macOS. It keeps reading and writing in one continuous surface, so you can work with the document instead of managing separate editor and preview panes.
Write with clarity
- Inline Markdown editing with a reading-first presentation
- Focus Mode that keeps the current block sharp
- Typewriter Mode that holds the caret near a comfortable writing line
- Source Mode when you need direct access to the original Markdown
- Document zoom from 75% to 200% with keyboard shortcuts
Read rich documents
- Responsive tables, task lists, code blocks, math, and local images
- Mermaid diagrams rendered as SVG
- Footnotes with return links
- Outline-based table of contents
- A dedicated YAML Front Matter region
Work with local files
- Open Markdown and text files directly from Finder
- Browse related documents in the current folder
- Save images beside the document in an assets folder
- Export complete documents to HTML or PDF
Make the workspace yours
- Julsai Light and Dark use warm paper tones and restrained color contrast
- System appearance follows your macOS setting automatically
- An optional Cyberpunk style uses blue, violet, and neon contrast
- Postal Editorial offers its own typography and color palette
- An interface in 33 languages, selected automatically from your macOS language preferences
Julsai works locally, requires no account, contains no ads or analytics, and does not collect or transmit your documents.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Choose from four visual styles—Julsai, Cyberpunk, Postal Editorial, and Roseleaf—with Light or Dark appearance.
• Saved documents reopen at the last reading position.
• Search headings with Go to Heading; repeated headings show line numbers.
• Copy code from reading view with whitespace preserved.
• Enlarge images and press Esc to close them.
• Document and folder search bars appear only when opened, with more reliable focus and Esc behavior.
• Improved responsiveness when opening documents in folders containing many files.
The developer, Bongkwon Choi, 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
- Bongkwon Choi
- Size
- 10.1 MB
- Category
- Productivity
- Compatibility
Requires macOS 14.0 or later.
- Mac
Requires macOS 14.0 or later.
- Mac
- Languages
English and 32 more
- English, Arabic, Bengali, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hindi, Indonesian, Italian, Japanese, Korean, Malay, Marathi, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Spanish, Swedish, Tamil, Telugu, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese
- Age Rating
4+
- 4+
- Copyright
- © 2026 BK