How much can a PWA store?

Question

I asked myself how much can a PWA store offline ... I found out that it depends on the browsers.

• Chrome can store 33% of the free disk space available
• firefox 50% of free space available
• safari can store unlimited and on mobile safari can store 50MB.

But I found different numbers everywhere... Can someone tell me the current numbers and are these for each PWA or the total browser caching storage?

Answer 1

I would consider Google developers article as reliable source about browsers differences:

And this MDN article to learn the difference between the Global and Domain limit:

The global limit is calculated as 50% of free disk space.

The group limit — this is defined as 20% of the global limit, but it has a minimum of 10 MB and a maximum of 2 GB. Each origin is part of a group (group of origins).

If you want to learn more about PWAs I wrote a series of articles about this technology (covering also different offline caching strategies).