What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.

At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.

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.


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    How do I limit a user to enter only a specific number of characters?

    Asked by syntel_mettl on January 12, 2017 at 01:01 AM

    ex: i want the form accept the value only if it is of 10 characters. i.e it should throw an error is someone inputs less than or more than 10 characters.

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    JotForm Support

    Answered by BJoanna on January 12, 2017 at 04:25 AM

    You can achieve this with Textbox field if you set Input Mask. You will also need to check Fill Mask Validation option.

    More about Input Masking you can find inside of this guide:

    https://www.jotform.com/help/381-Getting-Started-with-the-basics-of-Input-Masking 

    Hope this will help. Let us know if you need further assistance.