A: Worlds are saved to IndexedDB inside your browser. To back them up: Open Developer Tools (F12) → Application → IndexedDB → Export the eaglercraft-worlds database as a JSON file.

| Error Message | Likely Cause | Solution | | :--- | :--- | :--- | | "Error: Out of Memory" | Browser tab memory limit. | Close other tabs. In Chrome, enable #enable-experimental-web-platform-features . | | "Failed to download assets" | Missing asset server. | You are using a stripped client. Re-download the "full" build from a different source. | | "WebGL not supported" | Old browser or disabled GPU. | Update Chrome. On school PCs, try Firefox portable edition. | | White screen / frozen | Corrupt cache or conflicting extension. | Clear browser cache. Disable ad-blockers and privacy extensions for the file. | | "Cannot connect to server" | Wrong protocol (http vs ws). | Eaglercraft servers use ws:// (WebSocket), not http:// . Ensure you type ws:// before the IP. | | Skin is black and white | Missing skin server URL. | Go to Options → Skin Customization → Set your own skin via URL or use default Steve/Alex. |

A: Yes, but with caveats. Use Chrome on Android. On iPhone, the performance is poor due to Safari’s slower WebGL. Touch controls are emulated via a cursor—you will want a Bluetooth mouse.