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.
It seems like you have used a guest account, without registering. If you register for a free account, you will be able to set and change your account settings, including changing of your account language to the language that you desire. Otherwise, your forms are created in your default language, or your browser's preferred language.
1. As the form was already created in a different language, please try changing the language at the bottom of the page, while you are editing your form.
2. Please set the default language for the form. You can do this by going to Setup & Embed > Preferences > Advanced Settings > Edit Form Languages > adding English in the new popup that appears and clicking Save.
3. You will now need to reset all your form's warning messages. You can do so by Setup & Embed > Preferences > Advanced Settings > Form Warnings > Reset > OK.
Your form and its Source Code should now be in English.
Please try it out and let us know if you need further help, we will be happy to assist you.