OpnForm

OpnForm is an open-source form builder for creating online forms, surveys, and workflows. It is built for teams that want to collect responses without giving up control of their data, and it runs as a managed cloud service or self-hosted on your own infrastructure.

The no-code builder creates unlimited forms and submissions, with input types such as text, date, URL, and file uploads. Forms support logic and customization, embed anywhere, send email notifications, and connect to Slack, webhooks, and Discord. Captcha protection guards submissions, and form analytics track responses.

The core application is licensed under AGPLv3 or any later version, while advanced enterprise features sit under a separate proprietary license. Self-hosting follows the deployment guides, with a minimal Docker setup for local development, and the cloud service handles support, backups, and upgrades.