Formspree vs Formstack

Formspree is a form backend service for static websites and front-end applications. Instead of writing server code, developers point an HTML form's action attribute at a Formspree endpoint, or use its React library, and Formspree receives the submission, filters spam, emails a notification and stores the entry in a dashboard. It became a standard choice in the Jamstack world and is a built-in option in site builders such as Carrd.

Beyond the endpoint, Formspree offers spam protection with reCAPTCHA, hCaptcha and its own filtering, file uploads, custom redirects and autoresponses on paid plans, a submission archive with export, and integrations that forward data to tools like Google Sheets, Mailchimp, Slack, Airtable, Zapier and webhooks. Plans are priced by monthly submission volume, with unlimited forms on every plan: the free tier allows 50 submissions per month, and Personal, Professional and Business tiers raise limits and add team access, integrations and more advanced features.

Formspree fits developers and designers who build static sites with Astro, Next.js, Hugo or plain HTML and simply need forms to work reliably. It is not a visual form builder, so non-technical users who want to design surveys and quizzes will be happier with Tally, Typeform or Jotform. Netlify Forms is the obvious alternative for sites hosted on Netlify, Basin is a similar form backend, and Web3Forms offers a lighter free option for contact forms.

Formstack is a no-code forms and workflow platform founded in 2006 in Indianapolis by Ade Olonoh. Over the years it added Formstack Documents (from the WebMerge acquisition) and Formstack Sign, and bought Formsite. In 2025 the company renamed itself Intellistack and moved its headquarters to Denver, but Formstack products continue to be sold and supported under their own brand.

Formstack Forms covers drag-and-drop forms with conditional logic, payments, approval workflows, HIPAA-ready data handling, data encryption and offline collection through the Formstack Go mobile app. Documents turns submissions into filled PDFs or Word files, and Sign collects legally binding signatures, so a typical flow runs from intake form to generated contract to signature. Plans start with Forms for one builder user, Suite bundles all three products for three users, and Enterprise and Salesforce Solutions are quoted.

Formstack fits healthcare, education, government and financial teams that care about compliance and want forms, documents and signatures from one vendor. Jotform offers far more templates at lower prices, Typeform is better for conversational marketing forms, and Fillout gives modern forms with a generous free plan. Formstack has no free plan and per-form submission caps.

For Salesforce users, the native Salesforce forms product is the main reason to choose Formstack. Use the 14-day trial to confirm the submission limit per form fits your volume.