Can anyone explain the difference between SharePoint Online Classic site and SharePoint on-prem, please?

For example, are those webparts on-prem still available in SharePoint Online classic site?

Any other major difference apart from mention above?

Thanks a lot

  • Hi please see this blog. It provides a very good comparison.
    – Arut
    Oct 23, 2017 at 15:13

1 Answer 1


The difference is big and it will take a lot to explain.

  1. The key is that Online is hosted somewhere in Microsoft data centers you don't take care for the actual machine server only for SharePoint. So if you have On-Prem machine you need to buy licence like Server, Microsoft Server operation system, SharePoint, SQL and so on.
  2. SharePoint Online doesn't support code behind you need to create provided hosted app that means that SharePoint uses a Azure site or IIS local site for the c# code of the app. You can find more on how to use them here
  3. There are many, many other things that you can read OnPrem vs Online

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