SSGform is a form backend service from Zalfa Inc., built for static websites and modern web apps that have no server of their own. Developers write their own form HTML and point it to SSGform’s server, which handles submissions and email notifications without storing any data.

SSGform works with all major static site tools including Hugo, Gatsby, Jekyll, Next.js, Nuxt, and Astro, as well as hosting platforms like GitHub Pages, Netlify, Vercel, and Cloudflare Pages. Spam filtering is tuned for Japanese content, with character checks, blocked keyword lists, and reCAPTCHA. Slack, Microsoft Teams, Google Chat, and Chatwork notifications are available on all plans, with unlimited team members on every tier.

The free plan includes every feature (spam protection, auto-reply emails, multiple notification recipients, and unlimited form URLs) with no ads. Paid plans raise the monthly submission limit.

Submitted form content is never saved to a database or recorded in server logs. Application logs automatically mask submission data too.