Microsoft has Removing Code-Based Sandbox Solutions in SharePoint Online then how to deploy custom webpart Is any alternative way?

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    can you tell us more about the type of content that you would like to display using your webpart?
    – HarryB
    Sep 22, 2016 at 10:30

2 Answers 2


Now, you can't deploy any Code-Based Sandbox Solutions/custom webparts directly in SharePoint online. But in SharePoint provider hosted app you can use server side code/C#.

Apart from this, You can use JSOM, REST API based solutions, SharePoint hosted apps in SharePoint online.

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In addition to Vishal's answer, there is also the new client-side development framework called 'SharePoint Framework' (spfx) which is currently in the preview phase.


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