Where Does Your Browser Game Save Data Actually Live?
LocalStorage, IndexedDB, server saves — and what every player should know about ownership and privacy.
Nova Rivera
Editor-in-Chief · · 5 min read
Local vs cloud saves
Most browser games default to LocalStorage — fast, but tied to one browser on one device. Clearing site data wipes your run.
Cloud saves usually require an account and live on the publisher's servers. Convenient, but check the privacy policy before linking anything.
Backup tips
Some games expose an export button under settings. Use it. A 2KB JSON file beats losing a 30-hour run.
Frequently asked questions
Does incognito mode delete my saves?
Yes — private browsing windows wipe LocalStorage when you close them.
Can a website see my other game saves?
No. Each domain has its own isolated storage.