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.
I assume that you want to put HTML Code into your form. Please follow these steps;
1) Drag/Insert "Text" field from Toolbox to your form.
2) Click on "Edit HTML" button.
3) Click on "HTML" to view the source code.
5) A Pop-up window will appear with the source code, where you can edit as an HTML.
Hope this helps. Do let us know if you need further assistance, we would be happy to assist you in any way.