Elden Ring Progress Tracker

A comprehensive progress tracking tool for Elden Ring that analyzes save files and provides detailed location-based item tracking with an intuitive visual interface.

Features

Core Functionality

• Direct Save File Analysis - Supports .sl2 (PC/Steam) and .co2 (PlayStation) save formats
• Location-Based Tracking - Discover exactly where to find each collectible item
• Regional Organization - Items organized by region and sub-region hierarchy
• Comprehensive Statistics - Track completion percentages globally, regionally, and by category
• Smart Filtering - Filter by ownership status, category, acquisition method, or search by name
• Visual Interface - Clean, responsive dark theme with collapsible regions
• Wiki Integration - Direct links to Fextralife Wiki for detailed item information

Item Categories

• Weapons - All armament types including unique and legendary weapons
• Armor - Complete armor sets with normal and altered variants
• Talismans - All talismans including legendary variants
• Magic - Sorceries, incantations, and Crucible aspects
• Ashes of War - All weapon skill modifications
• Spirit Ashes - Complete collection of summonable spirits
• Bell Bearings - Shop unlock items for Twin Maiden Husks
• Cookbooks - Crafting recipe collections
• Crystal Tears - Wondrous Physick components
• Key Items - Memory Stones, Talisman Pouches, and other collectibles

DLC Support

• Full Shadow of the Erdtree integration
• Automatic DLC save format detection
• Separate tracking for Land of Shadow regions

Getting Started

Locating Your Save File

Windows (Steam):

C:\Users\[YourUsername]\AppData\Roaming\EldenRing\[SteamID]\ER0000.sl2

PlayStation:

1. Export save to USB drive
2. Locate the .co2 file

Running the Tracker

Local File Access (Recommended): Simply open index.html directly in your web browser. The application works offline.

Local Server (If Needed): If your browser blocks local file access, start a local server:

# Python 3
python -m http.server 8000

# Node.js
npx http-server -p 8000

# PHP
php -S localhost:8000

Navigate to http://localhost:8000

Using the Tracker

1. Upload Save File - Click "Choose File" and select your .sl2 or .co2 save file
2. Select Character Slot - Choose your character from the dropdown (if you have multiple)
3. Analyze Progress - Click the calculate button to process your save file
4. Review Results - Browse items organized by region:
   • Green cards indicate owned items
   • Red cards indicate missing items
   • Click item names for detailed wiki information
   • Expand regions and sub-regions to view all items
5. Filter Items - Use the filter controls to narrow down results:
   • Status: All / Owned / Missing
   • Category: Weapons, Armor, Talismans, etc.
   • Acquisition: Boss drops, chests, merchants, etc.
   • Search: Find items by name

📁 Project Structure

best-elden-ring-tracker/ ├── index.html # Main application interface ├── assets/ │ ├── css/ │ │ └── styles.css # Responsive dark theme │ ├── js/ │ │ ├── main.js # Application orchestration │ │ ├── binaryParser.js # Save file binary parsing │ │ ├── dataLoader.js # JSON data management │ │ ├── tracker.js # Core tracking logic │ │ ├── ui.js # DOM manipulation and rendering │ │ └── wallpaper.js # Dynamic background system │ ├── json/ │ │ ├── data.json # Base game items (12,560+ items) │ │ ├── dlcData.json # Shadow of the Erdtree items │ Technical Details

Architecture

• Modular Design - Separated concerns: parsing, data loading, business logic, and UI rendering
• Vanilla JavaScript - Zero dependencies, runs in any modern browser
• ES6+ Standards - Classes, modules, async/await, and promises
• Responsive Design - Mobile-friendly interface with adaptive layouts
• Performance Optimized - Efficient filtering and rendering for 12,560+ items

Save File Parsing

The binary parser validates and extracts data from Elden Ring save files:

• Verifies BND4 file signature
• Supports dual inventory formats:
  • Base game: 16-byte chunks (0xB0AD010001FFFFFF)
  • DLC: 8-byte chunks (0xB0AD010001)
• Extracts UTF-16 encoded character names
• Handles up to 10 character slots per save file

Item Categorization

Items are automatically categorized by hexadecimal ID ranges:

Weapons:        0x00F42400 - 0x017D7840
Armor:          0x10000000 - 0x14000000
Talismans:      0x20000000 - 0x24000000
Magic:          0x40000000 - 0x48000000
Ashes of War:   0x80000000 - 0x88000000
Spirit Ashes:   0x90000000 - 0x98000000
Bell Bearings:  0x400007F0 - 0x40000850
Cookbooks:      0x40002400 - 0x40002500
Crystal Tears:  0x40000BC0 - 0x40000BF0
Key Items:      0x40000000 - 0x40001000

Acquisition Types

Seven acquisition method categories with visual indicators:

• Boss drops (👑)
• Enemy drops (⚔️)
• Chests (📦)
• Quests (📜)
• Merchants (🛒)
• Invaders (🗡️)
• SData Sources

This project integrates data and functionality from multiple sources:

• Binary Parsing - Save file analysis adapted from Elden-Ring-Automatic-Checklist
• Location Database - Comprehensive item locations from elden-ring-progression-tracker
• Visual Assets - Elden Ring official branding and Mantinia font

Privacy

All save file processing happens locally in your browser. No data is uploaded or transmitted to external servers.

License

MIT License - See LICENSE file for details.

Contributing & Support

Contributions are welcome! Please feel free to submit issues or pull requests.

If you find this tool helpful, consider supporting on Ko-fi.

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**A tool for the Tarnished, by the Tarnished Tips:

• Enable "Include DLC" if you have Shadow of the Erdtree
• Use search to quickly find specific items
• Farmable items (♾️) can be obtained multiple times
• Click wiki links for detailed acquisition guides

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Made with ❤️ for the Tarnished community