Craft Epic Worlds with AI-Powered Precision
Build Your Fantasy Universe
Extal World Builder is a cross-platform desktop application designed for authors, game masters, and worldbuilders who need powerful tools to organize their creative universes. Featuring AI-assisted entity extraction, intelligent linking systems, and an elegant high-fantasy interface, your worldbuilding journey has never been more immersive.
Extal World Builder – UPDATES
AI Auto-Scanner
Automatically extract worldbuilding entities from your manuscripts and notes.
- Character detection with titles and roles
- Timeline events and historical markers
- Location and place name extraction
- Topic and theme identification
- Works offline with local AI models
- Rule-based fallback (no AI required)
Bidirectional Linking System
Every entity—character, topic, event, map, or marker—can be linked to any other, with instant navigation and context.
- Bidirectional links between all entity types
- Linked Events sections in all panels
- Automatic backlink generation
- Relationship network visualization
- Hover tooltips for quick previews
- Visual indicators with icons and colors
- Unplaced marker workflow for locations
Markdown-Powered Editor
Write and format your worldbuilding content with ease.
- Full Markdown support
- Real-time syntax highlighting
- Auto-close brackets and quotes
- Clean, distraction-free interface
- Export to multiple formats
Dynamic Timeline & Events
Organize and richly describe historical events, with full linking to all other world elements.
- Chronological event organization
- Link events to characters, topics, maps, and markers
- Linked Events visible in all entity panels
- Main editor for event descriptions
- Visual timeline representation
- Date, era, and category management
- Event categorization and filtering
Interactive Maps & Markers
Create and manage custom maps with smart markers, and link every marker to any entity or event.
- Upload custom map images
- Place and manage markers at key locations
- Measure distance between markers in walking and horseback
- Unplaced marker workflow for new locations
- Link maps and markers to events, characters, topics
- Bidirectional marker-entity linking
- Zoom and pan navigation
- Multiple map support
Character Management
Track every character in your world with detailed profiles and full event linking.
- Comprehensive character profiles
- Gender, role, and title tracking
- Relationship mapping
- Linked Events and timeline appearances
- Bidirectional links to all entities
- Custom metadata fields
Topic Encyclopedia
Document your world's lore, magic systems, cultures, and more—with deep linking to events and all entities.
- Categorized topic storage
- Rich markdown content
- Hierarchical organization
- Linked Events and cross-linking with all entities
- Search and filter capabilities
Secure Data Vault
All your worldbuilding data stored locally in organized JSON vaults.
- 100% local storage - no cloud required
- Portable JSON format
- Easy backup and version control
- Import/export functionality
- Human-readable data structure
Cross-Platform Desktop App
Run Extal World Builder on Windows, Mac, or Linux.
- Native desktop experience
- Electron-based architecture
- Optimized performance
- Consistent interface across platforms
- Offline-first design
✨ Privacy-First Worldbuilding ✨
Unlike cloud-based alternatives, Extal World Builder runs entirely on your computer. Your creative work stays yours. The optional AI features use local models that run without internet access. No subscriptions, no data mining, no privacy concerns.
Technical Specifications
🖥️ Platform
Electron-based desktop application for Windows, macOS, and Linux
🧠 AI Engine
Local AI powered by llama.cpp with Mistral 7B model (offline-capable)
✍️ Editor
CodeMirror with Markdown support and syntax highlighting
🗺️ Maps
Leaflet.js interactive mapping library
💾 Storage
JSON-based local vault system (no database required)
🎨 Interface
Custom high-fantasy theme with responsive design
Perfect For...
📚 Authors & Novelists - Track characters, locations, and plot threads across your fantasy series
🎲 Game Masters - Build detailed campaign settings with interconnected lore and NPCs
🎮 Game Developers - Document game worlds, quests, and character backstories
🎭 Screenwriters - Organize complex fictional universes for film and television
✨ Worldbuilders - Create detailed fictional worlds as a creative hobby or portfolio piece