FormTitan suits organizations that use Salesforce and need connected forms, document or eSign workflows, or portals.
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Best Form API Software 2026
When collecting information through forms, the right API software depends on what respondents need to provide and where submissions should go. Compared on conditional logic, file uploads, electronic signatures and webhooks, these options also vary by deployment model and monthly submissions. Free-plan availability and paid-from pricing offer additional points for weighing access and cost. Endatix, OpnForm and SurveyJS are among the named tools, with Feathery and Basin also shown. Consider whether your forms need branching questions or signatures, how you want to deploy them, and how many monthly submissions suit your use. The listed features help you compare ways to gather and handle responses.
02
Orbeon Forms
Orbeon Forms suits organizations building, publishing, and routing data-rich web forms.
WebLinuxAPI+1 Record6.0 Visit
03
SurveyJS
SurveyJS suits developers and organizations building web forms or surveys in React, Angular, Vue, jQuery, or plain JavaScript.
WebAPISelf-hosted Record5.8 Visit
04
Forminit
Forminit suits developers, agencies, freelancers, startups, and AI/vibe coders who want control over form design while outsourcing backend handling.
AndroidiPhone & iPadWeb+1 Record5.7 Visit
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Form.io
WebAPISelf-hosted Record5.5 Visit
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Formsite
WebAPI Free plan Record5.5 Visit Formsite suits people who need to create and share forms, surveys, or payment-collecting questionnaires.
7
OpnForm
WebAPISelf-hosted $25 a month Record5.5 Visit OpnForm suits people building forms, surveys, or workflows who need options for sharing, embedding, or self-hosting.
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Paperform
WebAPI Free plan Record5.5 Visit Paperform may suit teams building forms for marketing, eCommerce, education, or professional services.
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Basin
WebAPI Free plan Record5.2 Visit Basin suits designers, developers, and businesses that need form handling without server code.
10
FormKeep
WebAPI $4.99 a month Record5.2 Visit FormKeep is aimed at web designers, marketing teams, and customer specialists who need to collect form submissions.
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forms.app
Web $19 a month Record5.2 Visit It suits teams that need to build and share forms, collect responses or payments, and manage access among members.
12
Formspree
WebAPI $15 a month, billed yearly Record5.2 Visit Formspree suits people adding custom-coded forms to personal, portfolio, freelance, startup, organization or agency websites.
14
Formcarry
WebAPI $60 a year Record5.1 Visit Formcarry suits people who want to receive and manage website form submissions without writing backend form-processing code.
15
Formidable
WebAPI $15 a month Record5.0 Visit It suits people building conditional, computed, or approval-oriented forms who need hosted publishing, APIs, webhooks, or React rendering.
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HeadlessForms
WebAPI $1,928 a month, billed yearly Record5.0 Visit HeadlessForms suits people who need to collect submissions from a static site or through a hosted public form.
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FormBackend
WebAPI $5 a month, billed yearly Record4.9 Visit FormBackend suits individuals and site owners who need to collect form submissions without building server-side handling.
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Formsort
Web $279 a month Record4.7 Visit Formsort suits product managers, marketers, and designers who want to build and revise forms without relying on code-heavy workflows.
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Feathery
WebAPI Free plan Record4.5 Visit Feathery is suited to insurance and wealth management firms building workflows such as onboarding, account opening, underwriting, and servicing.
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FormSubmit
WebAPI Free plan Record4.5 Visit FormSubmit is aimed at designers and developers who need email delivery for HTML forms without maintaining server-side code.
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