Convert Image to Base64 in Power Automate

[jokanol1]

I have a Power Automate action that requires an image in base64. Is there a way to convert a given image to base64 using Flow via an action or Expression builder?

[CFernandes · Accepted solution]

Hey Mate @jokanol1 

You can use the Expression - base64(<your file content>)

If you are getting content from a SharePoint the you direct convert it  - using the formula -

outputs('Get_file_content_using_path')?['body']?['$content'] 

https://flow.microsoft.com/en-us/blog/use-expressions-in-actions/#:~:text=To%20use%20an%20expression.... 

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[jokanol1]

It worked, thanks!

[CFernandes]

@jokanol1 I am glad that your problem is resolved.😊

[wael_khanji]

Hi 

there is any way to know the size image ?? 

I mean to avoid failed action if the size is more than 28Kb

 there is any expression use it on condition if size more than 28 don't use it 

[Nantoanina]

Hello,

I have same issue but my image is from PowerApps 

I try same function but i alwayse get data like below

If you have any idea how to get "contentBytes" ??

[jt_michels]

I know this has been a while, but wanted to respond in case you needed it.  The contentBytes is indeed the base64 for your image.  i.e. to view it you could enter it as a data URI for an image as data URI with the format data:[contentType]/[format];base64,{contentBytes} so for your png image:

"data:image/png;base64,{contentBytes}"