OpnForm Review
An open-source form builder with a free cloud option
TL;DR
A clean, modern open-source form builder with an unusually generous free plan and solid essentials like embeds, webhooks, and file uploads. Expect fewer templates and lighter help docs than some commercial competitors.
Overview
OpnForm lets you build forms with multiple input types, optional logic, file uploads, and sharing options like a hosted link or embed. Its free cloud plan includes unlimited forms, fields, and submissions, plus features like webhooks and API access tokens. Paid plans add team and branding controls such as multiple workspaces, custom domains, larger file uploads, analytics, and custom email sending via SMTP. You can also self-host if you need more control, custom code/forks, or specific compliance requirements.
Ease of Use 3.5/5
We found it straightforward to build forms, and the UI feels clean and modern for an open-source tool. It also supports both classic single-page and step-by-step (multi-page) layouts, which helps when you want a guided flow. One usability knock is that pricing information was hard to find from the main site navigation.
Features 3.5/5
Core features called out on the site include 10+ input types, file uploads (up to 5 MB on free), form logic, hidden fields, URL pre-fill, form passwords, unique submission IDs, and closing dates. Sharing options include a hosted link and embeddable forms, plus exports (CSV) and basic analytics (views/submissions). Pro adds team and customization features like unlimited workspaces, custom domains, custom code, editable submissions, analytics, and larger uploads (50 MB).
It also has a unique field that you'd normally not see in dedicated form builders; A barcode reader. It can be extremely useful for field operations.
Key Features
Lacking Features
Looks & Design 4/5
We specifically noted the product looks clean and modern, which is not always the case with open-source apps. Built-in themes and customization options (colors, text, images, and custom thank-you pages) also help you match a site’s branding. Template selection is currently limited, which can affect how quickly you can get to a polished starting point.
Customer Satisfaction 3.5/5
Overall sentiment is positive, especially around the look and the availability of step-by-step layouts. The main sources of friction were around finding pricing information and the limited help articles. Template coverage was another downside, though we noted they are actively adding more. Also, adding logic to questions glitched once, so we were unable to add conditions.
OpnForm Pricing 4/5
Pricing is straightforward: a permanent free plan includes 99% of features with no quantity limits for forms, fields, or submissions. Pro is a flat $16 per month (with a 20% discount on annual billing mentioned) and adds the main team/branding features, plus extra users for $5/month. Enterprise starts at $79 per month and adds items like a dedicated instance, SAML SSO, security audits, and 2FA, but final pricing is positioned as tailored.
Free
- Unlimited forms
- Unlimited submissions
- Unlimited fields
- Multiple input types
- Form password
- Webhooks
- API access tokens
- Closing date
Pro
- Unlimited workspaces
- Form confirmation emails
- Slack notifications
- Discord notifications
- Editable submissions
- 1 custom domain
- Custom code
- Larger file uploads (50mb)
- Remove OpnForm branding
- Priority support
- Form analytics
- Custom sender email (SMTP)
- Extra users for $5/month
Enterprise
- Everything in Pro Plan
- Self-hosted/dedicated instance
- Priority support
- Payment via invoice/PO
- SAML single sign-on (SSO)
- Security audits
- Two-factor authentication (2FA)
- Unlimited users
Pros & Cons of OpnForm
Pros
- • Clean, modern UI (not typical for open-source)
- • Unlimited forms, fields, and submissions on the free plan
- • Classic and step-by-step (multi-page) form layouts
- • Webhooks and API access tokens on the free plan
- • File uploads supported (5 MB free, 50 MB Pro)
Cons
- • Limited template library (improving, but still small)
- • Pricing information is hard to find from the website navigation
- • Help articles/documentation feels limited for non-technical users
- • It is not as feature-rich as some form builders
The Verdict
OpnForm is a strong pick if you want a modern-looking form builder with unlimited submissions on a free plan and the option to move up to Pro for branding, workspaces, and larger uploads. It’s also worth considering if self-hosting matters for compliance, custom builds, or custom integrations. On the other hand, if you rely heavily on a large template library or detailed help articles to move fast, it may feel limiting today. It’s best for makers, small teams, and technical users who value open-source and simple deployment options.
This review has been researched and written following our strictly standardized FormBuilderTools methodology. We believe in transparency and consistency.
- We create real accounts and build actual forms.
- We test specific features like logic, payments, and integrations.
- We evaluate the respondent experience on mobile and desktop.
- We verify pricing claims and support responsiveness.