MellonForms
VS

MellonForms — The Open-Source Fillout Alternative

Create powerful, customizable forms with unlimited responses, developer control, and complete data ownership — without monthly caps or usage ceilings.

Fillout has a modern interface and a free plan (1,000 responses/month), but MellonForms gives you true unlimited submissions, open-source flexibility, and self-hosting options so you can scale without constraints.

Create Free AccountHave a Fillout URL? Import it now

See the difference. Try it live.

Compare MellonForms and Fillout using the same form experience — no screenshots, no assumptions.

opnform.com
Abstract MellonForms live demo visual

Live demo

Build a lead form that sends people to the right next step.

This demo shows a simple workflow with routing, exports, webhooks, and open-source flexibility.

Free Plan Comparison:
MellonForms vs Fillout

With MellonForms, you get everything Fillout offers — and more — without limits.

Monthly responses
MellonForms MellonForms
Unlimited submissions per month
Fillout
1,000 / month
Forms allowed
MellonForms MellonForms
Unlimited forms
Fillout
Unlimited forms
Branding removal
MellonForms MellonForms
Pro+
Fillout
Starter+
Conditional logic
MellonForms MellonForms
Included
Fillout
Included
Multi‑page forms
MellonForms MellonForms
Included
Fillout
Included
File uploads
MellonForms MellonForms
Included
Fillout
Included
Custom CSS
MellonForms MellonForms
Business+
Fillout
Pro+
API access
MellonForms MellonForms
Included
Fillout
Included
Open source
MellonForms MellonForms
Fillout
Self-hosting option
MellonForms MellonForms
Fillout
Get started. It's FREE!

Why Users Switch from Fillout to MellonForms

Fillout is beautiful — but MellonForms is powerful, open, and free.

No monthly submission caps
Freedom to scale without paywalls
Flexible form types
Lead capture, registrations, applications, workflows, surveys
Advanced logic & branching
Create dynamic, intelligent forms
Open source & self-hosting
Full control over deployment and data
Developer-first workflows
API, webhooks, and automation-ready
Branding and styling controls
Remove branding on Pro and use advanced styling on Business.

Feature-by-Feature
Comparison

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

Unlimited responses
MellonForms MellonForms
Fillout
Logic jumps & branching
MellonForms MellonForms
Fillout
File uploads
MellonForms MellonForms
Fillout
Calculations
MellonForms MellonForms
Fillout
Custom branding
MellonForms MellonForms
Pro+
Fillout
Paid
Custom CSS
MellonForms MellonForms
Business+
Fillout
Pro+
Integrations
MellonForms MellonForms
Basic included; advanced paid
Fillout
50+ included
Analytics dashboard
MellonForms MellonForms
Pro+
Fillout
Summary free; analytics paid
Open source
MellonForms MellonForms
Fillout
Self-hosting
MellonForms MellonForms
Fillout
API access
MellonForms MellonForms
Included
Fillout
GDPR compliance
MellonForms MellonForms
Fillout

See the real cost as your
usage grows

Move the slider to estimate your monthly submissions and see how pricing compares.

Expected submissions per month
100
250
500
1,000
2,500
5,000
7,500
10,000
15,000
20,000
25,000+
MellonForms
$0
Fillout
$100
You save $100 per month with MellonForms

Integrations that
work for you

Connect MellonForms 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 MellonForms 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.

View Pricing
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!