JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
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When add multiple languages to your form you get a drop down at the top of it.
Unfortunately, you will need to make separated forms in the needed language, it is not necessary to make the entire form again, you can clone it and only set the needed language as default.
This guide will help you to clone a form from your account: How-to-clone-an-existing-form-from-your-account