Do you have a form where you ask a user to enter a website URL ?

There is no direct way to validate URL in PowerApps today, however, you can use IsMatch function along with Regular Expressions to do this.

Here is the expression you need to validate a URL –

IsMatch(URL_Input.Text, "(?:http(s)?:\/\/)?[\w.-]+(?:\.[\w\.-]+)+[\w\-\._~:/?#[\]@!\$&'\(\)\*\+,;=.]+$")

That’s it, now you can use this to change the border-color of the Text Input box so that the app user knows when he URL entered is incorrect.

Here is an example –

Validate URL in PowerApps

The expression that is used in the border color property –

If(!IsBlank(URL_Input.Text), If(IsMatch(URL_Input.Text, "(?:http(s)?:\/\/)?[\w.-]+(?:\.[\w\.-]+)+[\w\-\._~:/?#[\]@!\$&'\(\)\*\+,;=.]"),Green,Red),RGBA(166, 166, 166, 1))

Hope this helped.

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Indhaa
Indhaa
5 months ago

I amended the expression since it doesn’t validate if URL is with sub folders and %2. The below works for me now

“(?:http(s)?:\/\/)?[\w.-]+(?:\.[\w\.-]+)+[\w\-\._~:/?#[\]@!\$&’\(\)\*\+,;=.]+[\%\w]+$”

Fernando
Fernando
7 months ago

Thanks, but this not works for url with %20

This one fix this problem: (?:http(s)?:\/\/)?[\w.-]+(?:\.[\w\.-]+)+[\w\-\._~:/?#[\]%@!\$&’\(\)\*\+,;=.]+$

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Beat
Beat
2 years ago

This doesn’t work if the URL has /folder/subfolder/etc. This one works (from https://www.regextester.com/94502)
(?:http(s)?:\/\/)?[\w.-]+(?:\.[\w\.-]+)+[\w\-\._~:/?#[\]@!\$&’\(\)\*\+,;=.]+$

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