OpnForm

OpnForm is an open-source form builder that enables users to create beautiful, modern forms, surveys, and data workflows with unlimited submissions—even on the free plan. Designed for both individuals and teams, OpnForm offers drag-and-drop form creation, advanced customization, conditional logic, extensive integrations (Google Sheets, Slack, Discord, Zapier, Stripe), and enterprise-grade controls including self-hosting, EU cloud, SSO, and SOC2/GDPR compliance. It's ideal for businesses, creators, and organizations needing secure, scalable, and customizable data collection without platform lock-in.