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Simple Field Validation

Field Validation allows you to accept only the data that meets your required format. Here are the predefined validation types available for the Basic (free) service plan:

Text Box: none
Number: numeric
Email: email
Website: URL (web page)
Date: mm/dd/yyyy
Phone: numeric (3-3-4)

However, you cannot change the validation of a form field on the Basic plan. To do so, you’ll need to upgrade to Gold or a higher plan. We also provide more complex field validations for paid plans, which you can customize according to your needs.


  1. Hi! Could you help me with this request?
    I want to make a register form for an even, and I have tickets with a code, I want users to access to the form only if they have a correct code, each code is unique and can be used once.
    I propose this solution:
    Make a validation on a text box, I want to introduce an alphanumeric value an check if the data it’s on a google doc, or in a list, or somewhere.
    Or check if the data satisfy some rule like the sum of the ASCII Code of each value is equal to something.
    Or if you have other solution, please let me know.

    1. Hello, Hector! We have a feature to password protect your Event Registration Form. See our documentation at http://live.123formbuilder.com/docs/password-protection/
      Create a password for your form and send it to your guests, so that they can access it.

      Unfortunately, we do not have a feature to use unique codes, but you could create a JavaScript code which will verify the codes introduced by your form visitors. To add a custom JavaScript code follow our documentation here http://live.123formbuilder.com/docs/can-i-add-a-custom-js-script-to-my-form/

      For any other assistance, contact our Support Team at http://live.123formbuilder.com/contactus.html
      They will get back to you as soon as possible.

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Frequently Asked Questions

Here is a list of the most frequently asked questions. For more FAQs, please browse through the  FAQs page.

Is this service free?
Yes, we offer a free form builder service. Just sign up to the Basic plan and you are all set. This plan is forever free, but you are limited with a few features only, such as 5 forms per account, 100 submissions per month and you have to keep the backlink to 123FormBuilder on your forms. Check out our features matrix for more information.
How many forms can I create?
It depends on the service plan you are on. Higher service plans enable more features, including more web forms for your account. If you need more forms, go to the My Account section of your account and click the upgrade button. To create an unlimited number of forms, either upgrade to the Platinum service plan or higher. Consult our features matrix for more information.
How can I publish my forms?
You can publish your forms in many ways, by using their direct URL or HTML link, embedding them with a JavaScript code, Inline HTML or iFrame, using the Facebook app or the WordPress plugin, using popups, the Blogger code snippet and many more. Once you have created and customized your form, go to the Publish section to complete your work. Read more in our documentation.
How do I change my form design?
You can change the design of your form in the Themes section, which is located in your form settings. We offer a set of more than 30 predefined form themes for your forms, but you can also create your own from scratch. You can customize the submit button, the logo and more. To apply your own stylesheets, all forms come with a custom CSS editor.

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