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Obviously, I want to get the answer without saving the page. It seems basic, but I can't figure out how to do that. If it requires a plugin, it's ok. It would be nice if the solution would also cover styling sheets, scripts and images, associated with the page.

3 Answers 3

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Open Developer tools (Ctrl+Shift+I or Settings Icon at the top-right of your browser window => Tools => Developer tools) on the needed page, switch to the Network tab and reload page.

In the Size column you'll see the size of everything loaded (Documents, Stylesheets, Images, Scripts, ...). You can enable filter to help you find out only needed stuff at the bottom-center of Developer tools frame.

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    Thanks! The need to reload is not so intuitive.
    – xxzoid
    Dec 6, 2011 at 14:04
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    Kind of sucks. Right click -> 'view properties' or something similar on an already loaded page would feel much more intuitive.
    – tholu
    Oct 15, 2014 at 16:43
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    Its worth adding that the total size of all requests to the server is listed at the very very bottom when you have the Network tab open. It's not immediately obvious Apr 14, 2015 at 17:53
  • In a more recent version of Chrome, the total size at the bottom of the Network tab is listed as KB/MB transferred, which should equal the sum of the Size column. Nov 14, 2019 at 12:20
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I have created my 3rd Chrome extension Page Size Inspector that quickly reports page size, cache usage, network requests and load time of a web page in a convenient way.

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There's an extension called "Quick source viewer", which caches all the resources when a page is loaded. Open the viewer (blue icon), the size (number of bytes) is shown in the navigation pane on the left.

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