OpnForm
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OpnForm — The Open-Source Form.io Alternative

Create beautiful, logic‑driven forms with unlimited responses, full control, and zero limits — all for free.

While Form.io is a developer‑centric form + API platform requiring backend setup and engineering effort, OpnForm delivers both a user‑friendly form builder and developer workflows out of the box. You get all the power of modern forms without needing custom backend infrastructure.

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See the difference. Try it live.

Compare OpnForm and Form.io using the same form experience — no screenshots, no assumptions.

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Free Plan Comparison:
OpnForm vs Form.io

With OpnForm, you get everything Form.io offers — and more — without limits.

Unlimited submissions
OpnForm OpnForm
Unlimited
Form.io
Yes (requires self-host deployment)
Unlimited forms
OpnForm OpnForm
Unlimited
Form.io
Yes (self-host)
Unlimited users / seats
OpnForm OpnForm
Unlimited
Form.io
Depends on deployment
Conditional logic
OpnForm OpnForm
Included
Form.io
Included in builder
Multi-page forms
OpnForm OpnForm
Included
Form.io
Included
File uploads
OpnForm OpnForm
Free basic quota
Form.io
Included with file storage setup
Drag-and-drop builder
OpnForm OpnForm
Included
Form.io
Developer-oriented
No code required
OpnForm OpnForm
Yes
Form.io
Low-code / developer-oriented
Hosted experience without infra
OpnForm OpnForm
Yes
Form.io
Must self-host
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Why Users Switch from Form.io to OpnForm

Form.io is beautiful — but OpnForm is powerful, open, and free.

Hosted forms with no backend required
Start collecting data instantly.
Unlimited responses and forms out of the box
No usage caps on submissions or forms.
Non-technical UI
Easy for marketers, creators, and teams.
Developer-friendly when needed
API, webhooks, and automation support.
Rich integrations without custom code
Zapier, Make, Sheets, Slack, and more.
Custom domains & branding
Manage form identity on paid plans.

Feature-by-Feature
Comparison

OpnForm gives you the same polished experience — but open, customizable, and accessible to everyone.

True unlimited responses (no ceilings)
OpnForm OpnForm
Form.io
Only via custom deployment
Turnkey hosted form builder
OpnForm OpnForm
Form.io
Easy setup for non-devs
OpnForm OpnForm
Form.io
Developer workflows (API + webhooks)
OpnForm OpnForm
Free API + webhooks
Form.io
Native integrations ecosystem
OpnForm OpnForm
Basic free; advanced paid
Form.io
Must build integrations
Full control of styling without code
OpnForm OpnForm
Business+
Form.io
Code-level control
Custom domains out of the box
OpnForm OpnForm
Pro+
Form.io
Custom deployment only
Intuitive UI for builders
OpnForm OpnForm
Form.io
Developer-oriented builder

Integrations that
work for you

Connect OpnForm to your favorite tools in seconds.

Sync form data automatically with Email, Google Sheets, Slack, Zapier, Telegram, and more via webhooks and automation platforms.

Privacy-first and
open by design

Built for teams, enterprises, and developers who need full control over their data.

Open Source
Self-host OpnForm or use our managed service — your data always belongs to you.
GDPR-Compliant
Your forms and responses stay private and secure.
Enterprise-Ready
SSO, API access, custom SLAs, and advanced permissions for teams who need scale.
Transparency
No tracking pixels, no hidden analytics — just clean, honest form building.
“Easy integrations, lots of flexibility, a responsive team, fast product updates, and the bonus of being open source.”
KF
kristelle F.
Mar 2026
“A strong fit for workflow tools: field management, conditional logic, and webhooks are already there and save serious build time.”
AN
Alexandre N.
Nov 2025
“Setup felt easy from day one, and Focused mode makes it feel like the best of classic forms and Typeform-style experiences.”
AA
Axel A.
Oct 2025
More reviews on Trustpilot

Powerful forms for everyone.

Start free with unlimited submissions. Upgrade when you need more control and customization.

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Free forever
No per-response fees
Fair pricing for growing teams
Open-source, secure, and trusted by teams worldwide.
Trusted Teams
Trusted Teams
Trusted Teams
Trusted Teams
Trusted Teams
Product screenshot

Build your first form today.

Start free with unlimited submissions. Upgrade when you need more control and customization.

View PricingGet started. It's FREE!