formbase.dev
Open Source Form Backend
FreeOpen SourceEmailsNoCode230 impressionslaunches Feb 16
Formbase.dev is an open-source backend that collects form submissions, file uploads and sends notifications via a single endpoint.
- for
- Web developers who need a simple form handling service without building a custom backend.
- pricing
- open source
- license
- AGPL-3.0
Key features
- Zero-config setup — Create a form and start receiving submissions instantly without any server configuration.
- Spam protection — Built-in mechanisms safeguard forms against unwanted spam submissions.
- Email notifications — Receive real-time email alerts whenever a new entry is submitted.
- Email auto-response — Send automatic reply emails to users after they submit a form.
- File uploads — Securely handle file uploads directly through the form endpoint.
- Third-party integrations — Out-of-the-box connections to services like Zapier, Notion and more.
Use cases
- Collect contact form leads on a static site
- Gather user feedback with file attachments
- Trigger Slack or Notion entries via Zapier on each submission
- Send confirmation emails to users after sign-up
formbase.dev vs alternatives
 formbase.dev |  Keel |  Fastgen |  Open SaaS |  Fluent CI | |
|---|---|---|---|---|---|
| Best for | Open-source form submission endpoint | Full-stack backend for apps | No-code backend builder | SaaS starter kit | CI/CD pipelines |
| Pricing | Open source | Subscription | Subscription | Free | Free |
| DevHunt upvotes | 1 | 46 | 95 | 98 | 158 |
| Launched | Feb 2027 | Mar 2024 | Jan 2023 | Jan 2024 | Jan 2024 |
- formbase.dev vs Keel: Keel offers a full backend platform with team tools, while Formbase is only a form endpoint service.
- formbase.dev vs Fastgen: Fastgen provides a visual backend builder similar to Webflow, whereas Formbase is a lightweight form API.
- formbase.dev vs Open SaaS: Open SaaS is a starter kit for SaaS apps; Formbase focuses solely on form handling.
- formbase.dev vs Fluent CI: Fluent CI is a CI/CD tool, not a form backend, so it addresses a different workflow.
formbase.dev FAQ
Do I need to run my own server to use Formbase?+
No, Formbase provides a hosted endpoint; you only need to point your form’s action attribute to it.
Can I use Formbase with static site generators?+
Yes, you can keep everything static and still handle submissions through the Formbase endpoint.
How does spam protection work?+
Formbase includes built-in spam filters that block unwanted submissions before they reach your inbox.
Is Formbase free to use?+
Formbase is open source and free; the code is available on GitHub.
Can I receive the submitted data in my own system?+
You can integrate Formbase with tools like Zapier or Notion to forward submissions to your own workflows.
Is file upload support included?+
Yes, Formbase handles secure file uploads as part of the form submission process.
Summarized by DevHunt from formbase.dev · Sep 29, 2026. Details may change; check the official site.
