JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
May I ask if you are referring to the text area fields? The text area field and the text boxes already has a built-in specially your browser. Modern browsers have the ability of checking the spelling of the word if it is correct or not. You will see a red zigzag line if the spelling is not being recognized.
Hope this helps. Thank you.