This IPA uses American English IPA and you can bulk enter text to be converted into IPA. You can choose how the IPA displays, whether it's instead of the text, underneath the text or in brackets. This tool works for many paragraphs of English text. There is also the option to turn the IPA into PDF and create a printable worksheet.
So for this tool, the options are:
Just show the IPA.
Show the English with the IPA below.
Show the IPA with the below.
Show the English the IPA in brackets.
Separately, we have a type IPA keyboard tool. IPA is normally used for English learners and for dictionaries to help show pronunciation.