Prompt
best open source form builder
Latest observation
Aug 27, 2026
OpenAI APIWeb search: off
Here are some of the best open-source form builders, depending on what you need:
Top picks
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Formbricks
- Best for: surveys, feedback forms, NPS, product research
- Tech: React/Next.js, self-hostable
- Why it stands out: polished UX, actively maintained, good analytics
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Form.io
- Best for: enterprise-grade forms and workflows
- Tech: open-source core, self-hosted options
- Why it stands out: very powerful schema-based form building, API-driven
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Caldera Forms alternatives / FormKit + custom builder
- Best for: developers who want to build forms into apps
- Tech: JS/TS ecosystem
- Why it stands out: flexible, but more DIY than a full visual builder
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OhMyForm
- Best for: simple Formspree/Typeform-style self-hosted forms
- Why it stands out: lightweight and straightforward
- Caveat: project activity can vary, so check maintenance status
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Baserow + forms
- Best for: form submissions tied to a database/spreadsheet workflow
- Why it stands out: easy to manage data and automate workflows
- Caveat: not a dedicated advanced form builder
If you want a quick recommendation
- Best overall open-source form builder: Formbricks
- Best for complex/enterprise forms: Form.io
- Best lightweight self-hosted option: OhMyForm
If you tell me your use case — e.g. survey tool, internal app forms, marketing lead forms, or embedded customer feedback — I can recommend the best one more precisely.