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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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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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    Phone Number Validation

    Asked by bernie20 on May 31, 2011 at 02:07 PM

    Hello, I would like to validate the phone number, but there is no validation option provided when I use the Phone Number from the Quick Tools section.  How can I get this done?

    I know it can be done manually, but I really like the phone format in the Quick Tools section.  Can I recreate this format manually if needed?


    Thank you



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    Answered by allanftd on June 01, 2011 at 08:45 AM

    Hi Bernadette,

    If you use the Phone Number field, it will automatically enforce validation by default. Hence, there is no need for a separate verification option to check if the text entered by your guests are numeric.

    Please let us know if you have any other questions or concerns. Thank you for using JotForm!


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    Answered by tpralogan on June 28, 2011 at 11:36 AM

    I used the default phone number field and was able to enter letters and successfully submit my form without it being flagged. Can you please reconfirm that the default phone number validation is numerical only.


    I don't want to make the field required but at the same time I want to make sure a user enters numbers only if they do enter anything in that field.


    See Screen-cap below of form and submission email received.

    Jotform Phone not validating

    Thank you for your time.

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    JotForm Founder

    Answered by aytekin on June 30, 2011 at 06:46 AM

    You are right. There is no validation on the phone field. It can only check if the user has entered something when you enable the required option.

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    Answered by mobiledataforce on April 20, 2012 at 11:41 AM

    This field type, without at least insisting on numeric entry is useless. Might as well remove it.

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    Answered by murcjot on April 20, 2012 at 12:24 PM

    Yeah I was wondering the same thing. Can you add validation to the Phone Number Fields so that it can accept numbers and also typical phone number special characters such as dashes and parenthesis?

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    Answered by gori-mathew on April 20, 2012 at 03:40 PM

     As a work around, from previously answered questions on thi sforum is to substitute the Phone Number field with a Text Box and turn on the number validation option, you can also set the max size.

    For the area code validation the following thread from neilvicente explains how this can be achieved with the use of javascript:


    It seems that developers are working on adding validation for the Phone Number field as I saw this question was asked previously. http://www.jotform.com/answers/32598-I-need-phone-number-validation 

    If you need further assistance you can contact us anytime.

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    Answered by joepg  on June 14, 2017 at 05:27 AM

    please how do i make sure one applicant doesnot register twice for each form considering email ,number and name found are similar
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    JotForm Support

    Answered by Mike_G on June 14, 2017 at 05:54 AM


    I have moved your concern to a new thread considering this is already an old thread and it is regarding a different topic.

    Please click this link to go to the new thread: https://www.jotform.com/answers/1172927