โก Saves & Backup
โฑ๏ธ 6 min read
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Updated 2026-11-04
Complete Guide: Backing Up, Restoring & Exporting Browser Game Saves
Browser game saves live inside your browserโs private IndexedDB and LocalStorage sandboxes. Discover how to inspect, extract, and back up your game progress before clearing browsing data.
Technical Overview
Modern web ports execute in an isolated sandbox. While this guarantees security, it also means your 40-hour RPG save file is tied to a specific browser profile.
Unlike native PC games that store save files in `%APPDATA%` or `Documents/My Games`, browser ports write binary blobs into client-side IndexedDB databases.
To ensure your progress is never lost, we recommend taking weekly save file exports and storing them in your personal cloud drive or USB backup.
Step-by-Step Implementation
Step 1: Locate Developer Tools Storage Tab
Press F12 or Ctrl+Shift+I in Chrome, Edge, or Firefox. Navigate to the "Application" tab (Chrome/Edge) or "Storage" tab (Firefox).
Step 2: Inspect IndexedDB and LocalStorage Trees
Expand the IndexedDB tree on the left. Find the origin database for the port (e.g. `diabloweb`, `sm64`, `dosbox`). Click on the object store containing your save records.
Step 3: Export In-Game Save Snapshot
Most modern WebAssembly ports (such as DevilutionX or Ship of Harkinian) feature an in-game "Export Save" button. Always use the in-game exporter when available.
Step 4: Restore Save File on Another Device or Browser
Launch the port on your target browser. Use the matching "Import Save" button or replace the IndexedDB entry in DevTools to continue your campaign seamlessly.
Frequently Asked Questions
Will clearing my browser cache delete my game saves?
If you check "Cookies and other site data" when clearing history, yes: IndexedDB and LocalStorage will be erased. Selecting only "Cached images and files" typically preserves your save states.
Can I sync browser saves across devices automatically?
Browsers do not sync IndexedDB across devices for security reasons. You must manually export your save file or use cloud-enabled port clients.
Play Related Browser Ports
Test the techniques from this guide in these verified 1-click playable titles:
