How much data can a browser save in localStorage

Question

I\'m using web sql and indexeddb but as a fallback I want to use a btree/localstorage. How much data can I save in localStorage on a given browser/platform?

If no one kn

Answer 1

From Wikipedia:

Storage Size Web storage provides far greater storage capacity (5MB per domain in Mozilla Firefox,[6] Google Chrome, and Opera, 10MB per storage area in Internet Explorer[7]) compared to 4KB (around 1000 times less space) available to cookies.

window.localStorage (from http://msdn.microsoft.com/en-us/library/cc197062(v=vs.85).aspx)

The localStorage attribute provides persistent storage areas for domains. It allows Web applications to store nearly 10 MB of user data, such as entire documents or a user's mailbox, on the client for performance reasons.