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WordPress publishing requires downloading and installing the 123FormBuilder plugin for WordPress. Once it is installed, your forms can be published on WordPress in seconds.Here are the steps that you need to follow in order to install and use the 123FormBuilder plugin for WordPress:

  1. Download the 123FormBuilder plugin for WordPress.
  2. Install the plugin:
    a. unzip and move the folder 123formbuilder-for-worpress to your wordpress/wp-content/plugins directory;
    b. visit your WordPress dashboard → Plugins tab and click on the Activate button for the plugin named 123FormBuilder for WordPress.

You can use the 123FormBuilder plugin or embed codes, if you have a self-hosted wordpress.org blog/site.

There are two ways of using the WordPress online form plugin, as follows:

The first way is by going to your 123FormBuilder account → My FormsPublish (in the menu of the form that you want to post on your blog). Choose the WordPress option in the menu on the left, copy the line of code that you find there and paste it in your blog post.

The second way you may find it easier, once you’re familiar with the first method. Here are the steps for using the new method (we’re assuming that the WordPress contact form plugin is already installed and activated):

  1. Go to your 123FormBuilder account → My Account section. Under Account Details, spot the API Key. It should say none (create now). Press Create now. Copy the API Key that has been generated.
  2. Go to your WordPress dashboard and edit your post. Make sure you are in the Visual mode (not HTML). Click on the 123FormBuilder icon in your menu, paste the API Key in the lightbox that appears and press Connect.

Insert 123FormBuilder Form

  1. All of your forms will then be listed in a dropdown list. Choose the form that you want to publish and press Embed


  1. same thing with me too, I got the following fatal error when activating the plugin:
    Fatal error: Cannot redeclare message() (previously declared in /shortcodes.php:2025) in wp-content/plugins/123formbuilder-for-wordpress/123formbuilder-wp-plugin.php on line 274- The browser you are using
    – What version of the browser you are using: firefox
    – Your OS (Windows, Linux or Mac):windows
    – WordPress version you are using: 4.1
    – What version of the 123FormBuilder plugin you are using (EN, NL, DE): En
    I tried to install plugin through wordpress search nd by uploadig the zip file and get the same error

    1. Hello Shadi!

      Our Team has investigated this issue, but couldn’t reproduce the error. Could you please remove the plugin from your WordPress site and install it again? Try refreshing the page if the error persists. If this still doesn’t solve the issue, take a few screenshots of the steps you have done that led you to this error. Attach these screenshots in an email and send them to our Support Team at support@123formbuilder.com and provide any additional information that could help our Team investigate the matter further.


  2. I have a problem with 123contact form in wordpress, when I use de code, there are a FATAL ERROR.


    1. Hello Maria!

      Could you please send us your username or email address associated to your account at support@123formbuilder.com? We will investigate this issue as soon as possible. Please specify in the email the following:
      – The browser you are using
      – What version of the browser you are using
      – Your OS (Windows, Linux or Mac)
      – WordPress version you are using
      – What version of the 123FormBuilder plugin you are using (EN, NL, DE)

      We’d also ask that you detail the steps you have followed that led you to that error.

      For questions or assistance, the Support Team is more than willing to help at support@123formbuilder.com


  3. Thought would leave a review found the contact form easy to install, and great articles on how to instal on WordPress via plug in
    As we was losing customers due to bad contact forms and site layout.
    Kind regards toby

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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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