CSS Tricks

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Customizing the progress bar

In this article, you'll learn how to customize the progress bar of your form using our online form builder. Once you have created a multi-page… Read more

Change the design of your dividers with CSS

CSS makes designing web forms so much easier. With basic coding knowledge, you can create stunning-looking forms and customize their design according to your… Read more

Replace error images with custom CSS

This is a knowledge base article on how to replace images with custom CSS using our CSS form generator. When you enable certain settings… Read more

How to apply custom CSS to your form

Our form builder offers many build-in theme options that you can choose from. Basically, you can change just about anything on your web form,… Read more

Minimalistic Input Fields

In this article, you will learn how to create minimalistic input fields using our form builder. Start improving your form’s design by incorporating CSS… Read more

Make choices as clickable buttons

Today you will learn how to make choices as clickable buttons using our CSS form generator. We developed a CSS code that will change… Read more

How to hide the payment method dropdown

In this article, you will learn how to hide the payment method dropdown with custom CSS. The payment method appears automatically when you enable one payment processor.… Read more

Improving mobile design with CSS

123 Form Builder forms are responsive to all mobile devices and tablets. Our forms work great on all devices and are offering a user-friendly… Read more

How to customize the digital signature box?

When using our HTML form generator, you can add electronic signature fields to your forms. The signature field is delimited by a box-shaped canvas.… Read more

How to add Google fonts to your online forms?

If you were wondering how to add Google fonts to your 123 online forms, here is how to do it with our CSS form… Read more

How to style file upload buttons on your online forms?

To style file upload buttons on your online form, access the form's Edit options and go to the Themes section. Afterwards, click on Add… Read more

How to change font for the Thank You page?

To change the font for the Thank You page, use this code: @import url(//fonts.googleapis.com/css?family=Lobster); body { font-family: 'Lobster', cursive!important; } #id123-thankyou { font-family: 'Lobster'!important;… Read more

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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