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.

  • Profile Image

    How to Block Repeated Submissions?

    Asked by bbalde on March 10, 2016 at 12:56 AM


    I want repetition removal.

    Twice I don`t want to submission.

    Is there a way?

    I need your help.

    plz. T-T



  • Profile Image
    JotForm Developer

    Answered by mert on March 10, 2016 at 03:18 AM

    Hi there,

    Yes, there is a way to overcome repeated submissions. By enabling the "Unique Submission" option, you can easily restrict those submissions to come. There are two levels on this feature, so if you choose "Loose Check", it controls the cookie and not allowed to submit twice if the user has submitted on the same browser before. However, if you choose the "Strict Check", it checks the IP and restricts second submissions from the same IP address.

    Below, you will see the guide about how to enable this option:



    If you need extra information or further assistance, please do let us know.


  • Profile Image

    Answered by bbalde on March 14, 2016 at 12:08 AM

    I found out prohibiting repeat submition using "loose check" 
    But, is there any method to reset or delete the history of cookie by administrator?
    because we use jotform to open several event to our customers. so we need to reset the cookie for another event.

  • Profile Image
    JotForm Support

    Answered by ashwin_d on March 14, 2016 at 01:36 AM

    Hello bbalde,

    Unfortunately, it is not possible to clear cookie of customer's browser but that should not create any problem for you. Please be noted that "Loose Check" featured is enabled per form and user should be able to submit any other form without any problem.


    If you have two forms "Form A" & "Form B" and in both the forms, you have set "Unique Submission" to be "Loose check", users will be able to submit both the forms. Only second submission on each form will be restricted.

    Hope this helps.

    Do get back to us if you have any questions.

    Thank you!