Formidable

What Formidable is

Formidable is a cloud-based AI form builder for creating forms from natural-language descriptions. It supports conditional logic, so fields can appear, disappear, or become required in response to answers and expressions. Computed fields evaluate expressions in real time and can produce weighted scores, boolean outcomes, or formatted outputs. Business rules and eligibility criteria can also determine whether a form produces an approve, reject, or escalation outcome.

Forms can be published as hosted pages, shared by link, or embedded in an iframe. Submissions can be received through webhooks. For custom integrations, Formidable provides a JSON REST API and the open-source Forma React library for rendering form specifications in a custom interface; its published pages also identify a React SDK as an integration option. The privacy policy places account, form, and submission data in the European Union. It says generation prompts may be processed by Anthropic, while submission and respondent information are not sent to AI services. Listed safeguards include encryption at rest and in transit, access controls, authentication, and regular security assessments. The free plan costs nothing and includes one published form and 1,000 submissions per month. Monthly paid plans start at $15 a month.

Who it suits

Formidable suits people who want to generate forms from written descriptions and use conditional fields, computed outcomes, or approval rules. It also fits teams that need hosted or embedded forms, webhook submissions, or a custom interface built with its API or React library.

Limits

The Free plan includes one published form and 1,000 submissions per month, with AI tokens as a one-time allowance. Form Pass adds one form with 5,000 monthly submissions for that form; Starter includes unlimited forms and 5,000 monthly submissions, while Pro includes 10,000. Submissions over a plan’s monthly limit are not accepted until the next billing cycle unless the user upgrades.

Getting started

1. Open the Formidable website.
2. Choose the Free plan or a paid plan.
3. Create a form from a natural-language description.
4. Configure conditional fields, computed fields, or business rules as needed.
5. Publish the form as a hosted page, share its link, or embed it in an iframe.
6. Connect submissions through webhooks or use the API or React library for a custom interface.

Verdict

Choose Formidable if you need form generation alongside conditional logic, computed fields, or rule-based decisions. Its free plan includes one form and 1,000 monthly submissions; look at a paid plan if you need more capacity, unlimited forms, or Pro priority support.