FormSubmit

FormSubmit is a form backend service that lets you point any HTML, WordPress, React, Next.js, Vue, or Astro form at a FormSubmit endpoint to receive submissions without writing server code. It emails every submission, blocks spam, stores files, and forwards data to webhooks, Slack, Discord, and Google Sheets.

It is designed for websites that do not have a backend or want to avoid managing server infrastructure for forms. FormSubmit handles deliverability, spam protection, file storage, retries, and GDPR-friendly data retention.

Features include spam protection with honeypots and captchas, file uploads with private storage, autoresponders, domain allowlists, hosted forms, and a visual form builder. The service offers a free plan and paid plans with increasing limits and storage.