Features

VMark is a feature-rich Markdown editor designed for modern writing workflows. Here's what's included.

Editor Modes

Rich Text Mode (WYSIWYG)

The default editing mode provides a true "what you see is what you get" experience:

• Live formatting preview as you type
• Inline syntax reveal on cursor hover
• Intuitive toolbar and context menus
• Seamless markdown syntax input

Source Mode

Switch to raw Markdown editing with full syntax highlighting:

• CodeMirror 6 powered editor
• Full syntax highlighting
• Familiar text editor experience
• Perfect for advanced users

Toggle between modes with F6.

Source Peek

Edit the raw Markdown of a single block without leaving WYSIWYG mode. Press F5 to open Source Peek for the block at cursor.

Layout:

• Header bar with block type label and action buttons
• CodeMirror editor showing the block's Markdown source
• Original block shown as dimmed preview (when live preview is ON)

Controls:

Action	Shortcut
Save changes	Cmd/Ctrl + Enter
Cancel (revert)	Escape
Toggle live preview	Click eye icon

Live Preview:

• OFF (default): Edit freely, changes applied only on save
• ON: Changes applied immediately as you type, preview shown below

Excluded blocks: Some blocks have their own editing mechanisms and skip Source Peek:

• Code blocks (including Mermaid, LaTeX) — use double-click to edit
• Block images — use image popup
• Frontmatter, HTML blocks, horizontal rules

Source Peek is useful for precise Markdown editing (fixing table syntax, adjusting list indentation) while staying in the visual editor.

Text Formatting

Basic Styles

• Bold, Italic, Strikethrough
• Inline code
• Subscript and Superscript
• Links with preview popups
• Clear formatting command

Text Transformations

Quickly change text case via Format → Transform:

Transform	Shortcut
UPPERCASE	Ctrl+Shift+U
lowercase	Ctrl+Shift+L
Title Case	Ctrl+Shift+T
Toggle Case	—

Block Elements

• Headings 1-6 with easy shortcuts
• Blockquotes (nested supported)
• Code blocks with syntax highlighting
• Ordered, unordered, and task lists
• Horizontal rules
• Tables with full editing support

Hard Line Breaks

Press Shift+Enter to insert a hard line break within a paragraph. VMark uses two-space style by default for maximum compatibility. Configure in Settings > Editor > Whitespace.

Line Operations

Powerful line manipulation via Edit → Lines:

Action	Shortcut
Move Line Up	Alt+Up
Move Line Down	Alt+Down
Duplicate Line	Shift+Alt+Down
Delete Line	Mod+Shift+K
Join Lines	Mod+J
Remove Blank Lines	—
Sort Lines Ascending	F5
Sort Lines Descending	Shift+F5

Tables

Full-featured table editing:

• Insert tables via menu or shortcut
• Add/delete rows and columns
• Cell alignment (left, center, right)
• Resize columns by dragging
• Context toolbar for quick actions
• Keyboard navigation (Tab, arrows, Enter)

Images

Comprehensive image support:

• Insert via file dialog
• Drag & drop from file system
• Paste from clipboard
• Auto-copy to project assets folder
• Resize via context menu
• Hover tooltip with filename, dimensions, and reveal in Finder
• Click to edit source path and alt text

Special Content

Info Boxes

GitHub-flavored markdown alerts:

• NOTE - General information
• TIP - Helpful suggestions
• IMPORTANT - Key information
• WARNING - Potential issues
• CAUTION - Dangerous actions

Collapsible Sections

Create expandable content blocks using the <details> HTML element.

Mathematical Equations

KaTeX-powered LaTeX rendering:

• Inline math: $E = mc^2$
• Display math: $$...$$ blocks
• Full LaTeX syntax support
• Helpful error messages with syntax hints

Diagrams

Mermaid diagram support with live preview:

• Flowcharts, sequence diagrams, Gantt charts
• Class diagrams, state diagrams, ER diagrams
• Live preview panel in Source mode (drag, resize, zoom)
• Learn more →

Search & Replace

• Find bar (Cmd/Ctrl + F)
• Find next/previous
• Use selection for find
• Regular expression search
• Replace all functionality

Export Options

VMark offers flexible export options for sharing your documents.

HTML Export

Export to standalone HTML with two packaging modes:

• Folder mode (default): Creates Document/index.html with assets in a subfolder
• Single file mode: Creates a self-contained .html file with embedded images

Exported HTML includes the VMark Reader — interactive controls for settings, table of contents, image lightbox, and more.

Learn more about export →

PDF Export

Print to PDF with native system dialog (Cmd/Ctrl + P).

Copy as HTML

Copy formatted content for pasting into other apps (Cmd/Ctrl + Shift + C).

CJK Formatting

Built-in Chinese/Japanese/Korean text formatting:

• 20+ configurable formatting rules
• CJK-English spacing
• Fullwidth character conversion
• Punctuation normalization
• Smart quote pairing with apostrophe/prime detection
• Technical construct protection (URLs, versions, times, decimals)
• Contextual quote conversion (curly for CJK, straight for Latin)
• Learn more →

Document History

• Auto-save with configurable interval
• View and restore previous versions
• JSONL storage format
• Per-document history

View & Focus

Focus Mode (F8)

Dim everything except the current paragraph for distraction-free writing.

Typewriter Mode (F9)

Keep the active line centered on screen for a typewriter-like experience.

Word Wrap (Alt + Z)

Toggle soft line wrapping in the editor.

Text Utilities

VMark includes utilities for text cleanup and formatting, available in the Format menu:

Text Cleanup (Format → Text Cleanup)

• Remove Trailing Spaces: Strip whitespace from line endings
• Collapse Blank Lines: Reduce multiple blank lines to single

CJK Formatting (Format → CJK)

Built-in Chinese/Japanese/Korean text formatting tools. Learn more →

Image Cleanup (File → Clean Up Unused Images)

Find and remove orphaned images from your assets folder.

Auto-Update

VMark automatically checks for updates and can download and install them in-app:

• Automatic update checking on launch
• One-click update installation
• Release notes preview before updating

Workspace Support

• Open folders as workspaces
• File tree navigation in sidebar
• Quick file switching
• Recent files tracking
• Window size and position remembered across sessions

Customization

Themes

Five built-in color themes:

• White (clean, minimal)
• Paper (warm off-white)
• Mint (soft green tint)
• Sepia (vintage look)
• Night (dark mode)

Fonts

Configure separate fonts for:

• Latin text
• CJK (Chinese/Japanese/Korean) text
• Monospace (code)

Layout

Adjust:

• Font size
• Line height
• Block spacing (gap between paragraphs and blocks)
• CJK letter spacing (subtle spacing for CJK readability)
• Editor width
• Block element font size (lists, blockquotes, tables, alerts)
• Heading alignment (left or center)
• Image & table alignment (left or center)

Keyboard Shortcuts

All shortcuts are customizable in Settings → Shortcuts.

Technical Details

VMark is built with modern technology:

Component	Technology
Desktop Framework	Tauri v2 (Rust)
Frontend	React 19, TypeScript
State Management	Zustand v5
Rich Text Editor	Tiptap (ProseMirror)
Source Editor	CodeMirror 6
Styling	Tailwind CSS v4

All processing happens locally on your machine - no cloud services, no accounts required.