Tools tagged "forms" build and manage data-collection forms: surveys, contact forms, application forms, and structured intake flows, along with the backend to store and process submissions. Open source form tools range from simple form builders with a visual editor and hosted submission endpoint, to headless form backends that just handle submission storage and notifications for a form built by hand.
Common use cases include contact and lead capture forms on marketing websites, surveys and feedback collection, event registration and RSVP forms, internal data collection (employee requests, incident reports), and multi-step application or onboarding forms with conditional logic (show this question only if that one was answered a certain way). Headless form backends are popular with developers who want full control over form markup and styling but do not want to build submission storage, spam filtering, and email notifications from scratch.
When choosing one, check conditional logic support (branching questions based on prior answers), integration options for where submissions go (email, database, webhook, spreadsheet), spam and bot protection (CAPTCHA, honeypot fields, rate limiting), file upload handling if forms need attachments, and whether it offers a full visual builder or just an API or embed for developers building their own form UI. Response analytics (completion rate, drop-off by field) matters for longer forms where abandonment is a concern.
Self-hosted form tools typically replace Typeform, Google Forms, and Jotform. Teams self-host to avoid per-response pricing tiers that get expensive at volume, to keep submitted data (which often includes personal information) off a third party's servers, and to customize form styling and logic beyond what a SaaS builder's templates allow. The tradeoff is handling spam filtering and uptime for a customer-facing form yourself.