Features

Core Features

File Management

• New File: Click "New" button (web) or Cmd/Ctrl + N (desktop)
• Open File: Click "Open File" button (web) or Cmd/Ctrl + O (desktop)
• Save: Save current file with Cmd/Ctrl + S (both platforms)
• Save As: Save with new name using Cmd/Ctrl + Shift + S (both platforms)
• Close Tab: Click X on tab (web) or right-click context menu (both platforms)
• Recent Files: Access recently opened files via menu (desktop only)
• File Explorer: Click "Explorer" button to view all open tabs in tree structure

Text Editing

• Undo/Redo: Standard Cmd/Ctrl + Z and Cmd/Ctrl + Shift + Z
• Cut/Copy/Paste: Use system shortcuts or Edit menu
• Select All: Cmd/Ctrl + A selects entire document
• Multi-Cursor: Hold Cmd/Ctrl and click to add cursors
• Line Operations: Duplicate, move, or delete entire lines
• Auto-Pairing: Automatic closing of brackets, quotes, and tags

Search & Replace

• Open Panel: Click "Find/Replace" button in toolbar (both platforms)
• Search: Enter text in search field to find matches
• Replace: Use replace field to substitute text
• Regex Support: Toggle regex mode for pattern matching
• Case Sensitive: Toggle case sensitivity in search
• Results Panel: View all matches with surrounding context
• Navigation: Jump between matches with arrow buttons

Specialized Tools

📕 PDF Viewer

• Full Document Navigation: Page-by-page navigation with prev/next buttons and jump-to-page
• Thumbnail Sidebar: Visual page thumbnails for quick navigation
• Document Outline: View document bookmarks and table of contents
• Text Search: Search PDF content with keyword highlighting in yellow
• Zoom Controls: Fit-to-width, fit-to-page, and custom zoom levels (50%-200%)
• Focus Mode: Hide all UI panels for distraction-free reading (Eye icon button)
• Page Virtualization: Efficient rendering for large PDFs (100+ pages)
• Download & Print: Save PDF or send to printer from viewer
• Theme Support: Dark and light themes for comfortable viewing

🎨 SVG Viewer

• Pan & Zoom: Interactive pan and zoom with mouse drag
• Zoom Controls: Zoom in, zoom out, and reset view buttons
• Fit-to-Screen: Automatically fit SVG to viewport
• Download: Save SVG file from viewer
• Theme Support: Adapts to dark/light theme
• Large File Support: Efficiently handles complex SVG graphics

📝 JSON Editor

• Format: One-click formatting with proper indentation
• Validate: Real-time syntax validation with error highlighting
• Structure View: Navigate JSON tree structure
• Minify: Compress JSON by removing whitespace
• Collapse/Expand: Fold sections of large JSON files

🔖 XML Editor

• Format: Auto-format XML with proper nesting
• Validate: Check XML syntax and structure
• Tag Completion: Auto-close XML tags
• Structure View: Tree view of XML document
• Attribute Editing: Easy attribute management

📄 YAML Editor

• Format: One-click formatting with configurable indentation
• Validate: Real-time syntax validation with detailed error messages
• Structure View: Navigate YAML hierarchy with tree view
• Auto-Detection: Automatically detects YAML content from patterns
• Line Width Control: Configurable line width for formatting

⚙️ TOML Editor

• Format: One-click formatting with optional key sorting
• Validate: Real-time syntax validation with helpful tips
• Structure View: View sections, tables, and key-value pairs
• Browser Compatible: Works in all modern browsers via smol-toml
• Date/Time Support: Full support for TOML date and time values

🔄 Format Converter

• Bidirectional: Convert between JSON, XML, YAML, and TOML
• New Tab Output: Converted content opens in new tab (preserves original)
• Smart Adjustments: Auto-fix XML tag names (spaces → underscores)
• TOML Compatibility: Handle null values and root array wrapping
• Adjustment Tracking: See all changes made during conversion
• Line Navigation: Click adjustments to jump to affected lines

📊 CSV Editor

• Preview: Visual table preview of CSV data
• Column Management: Add, remove, or reorder columns
• Delimiter Detection: Auto-detect comma, tab, or semicolon
• Header Row: Toggle first row as header
• Export: Export to various formats

📄 Markdown Editor

• Live Preview: Rendered HTML preview updates as you type
• Toggle Editor: Switch between preview-only and split view
• Default Collapsed: Editor collapsed by default for distraction-free reading
• Full Markdown Support: Complete markdown syntax rendering
• Smooth Transitions: Intuitive toggle controls with visual feedback

🔀 Diff Viewer

• File Upload: Compare two files side by side
• Paste Content: Compare pasted text or code
• Current Tab: Load current editor content automatically
• Color Coding: Green for additions, red for deletions
• Line-by-Line: Precise comparison highlighting

Advanced Features

Large File Support

• WASM-Powered: Handle files up to 20MB+ with WebAssembly technology
• Efficient Indexing: Fast line indexing for million-line files
• Virtual Scrolling: Smooth navigation through massive files
• Fast Search: Quick search operations on large files
• Memory Efficient: WASM memory storage reduces React state overhead
• Auto-Optimization: Syntax highlighting disabled for files >10MB

AI IntegrationWeb + Desktop

• OpenAI: GPT-4 and GPT-3.5 Turbo support (both platforms)
• Claude: Anthropic Claude models integration (both platforms)
• Groq: Fast cloud AI processing (both platforms)
• WebLLM: Browser-based AI models (web only)
• Ollama: Local AI models for privacy (desktop only)
• Code Suggestions: AI-powered code completion
• Error Fixes: Automatic error detection and fixes
• Explanations: Get AI explanations of complex code

VIM Mode

• Modern Toggle Switch: iOS-style toggle control with sliding animation
• Modal Editing: Normal, insert, and visual modes
• Standard Keybindings: Classic VIM commands
• Navigation: h, j, k, l movement
• Commands: Full VIM command support
• Auto-Focus: Editor focuses automatically when enabled
• Mode Indicator: Visual badge showing current mode (N/I/V)

LSP Support

• Code Intelligence: IntelliSense-style completions
• Hover Info: Documentation on hover
• Diagnostics: Real-time error checking
• Go to Definition: Jump to symbol definitions
• Language Support: JavaScript, TypeScript, Python, and more

Terminal IntegrationDesktop Only

• Built-in Terminal: Integrated terminal panel
• Toggle Panel: Click the Terminal icon button in toolbar
• Multiple Terminals: Create multiple terminal instances
• Full Shell: Access to complete shell environment
• Working Directory: Terminal opens in your current project folder

Platform-Specific Features

Web Version FeaturesWeb

• No Installation: Access directly from your browser
• Cross-Platform: Works on any device with a modern browser
• Auto-Save: Browser-based local storage for your work
• WebLLM AI: Browser-based AI models (no API key needed)
• Groq API: Fast cloud-based AI processing
• Share via URL: Easy sharing and collaboration

Desktop App FeaturesDesktop

• Native File System: Direct access to local files and folders
• Integrated Terminal: Full shell environment within the app
• Ollama Support: Local AI models for complete privacy
• System Tray: Quick access from system menu
• Native Dialogs: Platform-native file dialogs
• Offline Mode: Full functionality without internet
• Better Performance: Optimized for desktop with lower memory usage
• System Integration: File type associations and context menus