Yes, we offer a free form builder service. It offers a satisfying range of options, but it has certain limitations.
With the Basic free plan, you can build 5 forms with a maximum of 15 fields each. The forms must keep the backlink to 123 Form Builder. Gold, Platinum, Professional, and Enterprise plans include many extra features that cover all form development possibilities: from full customization of appearance, advanced features (such as payments and conditional logic, just to name a few) to corporate solutions.
You can purchase a subscription on a monthly or yearly basis. Have a look at our Features list for more details.