Form.io vs Fillout: Which is Better in 2026?
Choosing between Form.io and Fillout comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Form.io
The self-hosted developer productivity platform for building forms and APIs within your applications.
Best for you if:
- • Build forms and APIs simultaneously with a drag-and-drop interface.
- • Self-hosted platform for complete data ownership and control.
Fillout
Build beautiful forms with logic, payments, and 50+ integrations
Best for you if:
- • Fillout is a form builder that connects directly to Airtable, Notion, and databases
- • It creates forms that populate your existing tools with conditional logic and calculations
| At a Glance |  Form.io |  Fillout |
|---|---|---|
Starts at | FreeFree tier available | FreeFree tier available |
Best For | Form Builders | Form Builders |
Rating | 4.3/5 | - |
Choose Form.io or Fillout?
Choose Form.io if
The self-hosted developer productivity platform for building forms and APIs within your applications.
- Self-hosted for complete data ownership and control.
- Builds forms and APIs simultaneously, reducing development time.
- Standardizes data using JSON across forms, APIs, and databases.
Choose Fillout if
Build beautiful forms with logic, payments, and 50+ integrations
- Database integrations
- Update records
- Scheduling built-in
| Feature | Form.io | Fillout |
|---|---|---|
| Pricing Model | Freemium | Freemium |
| User Rating | ★4.3/5 40 reviews | No ratings yet |
| Categories | Form BuildersAPI Tools | Form BuildersNo-Code |
In-Depth Analysis
Form.io
The self-hosted developer productivity platform for building forms and APIs within your applications.
Strengths
- +Self-hosted for complete data ownership and control.
- +Builds forms and APIs simultaneously, reducing development time.
- +Standardizes data using JSON across forms, APIs, and databases.
- +Highly configurable and scalable for enterprise environments.
- +Supports complex form requirements, integrations, and security compliance.
Weaknesses
- -No free tier, making initial exploration potentially costly.
- -Pricing model is configuration-based, which might be complex to estimate for smaller projects.
- -Requires self-hosting and deployment, which might be a barrier for non-technical users or smaller teams without DevOps resources.
Key features
Fillout
Build beautiful forms with logic, payments, and 50+ integrations
Strengths
- +Database integrations
- +Update records
- +Scheduling built-in
Weaknesses
- -Free tier limited
Key features
Pricing: Form.io vs Fillout
| Plan | Form.io | Fillout |
|---|---|---|
| Tier 1 | $660/month API Plus Server Environment | Free Free |
| Tier 2 | $330/month API Server Environment | $15 Starter |
| Tier 3 | $330/month Enterprise Level Project | $40 Pro |
| Tier 4 | $660/month PDF Plus Server Environment | $75 Business |
| Tier 5 | $330/month PDF Server Environment | Enterprise |
| Tier 6 | $660/month Reporting UI Module | N/A |
| Tier 7 | $330/month Multi-Tenanted Platform Environments (10 tenants) | N/A |
| Tier 8 | $495/month Accessibility Compliance Module | N/A |
| Tier 9 | $660/month Enterprise Form Builder Module (Embedded) (10 tenants) | N/A |
| Tier 10 | $2,640/year Developer Licenses (5 licenses) | N/A |
| Tier 11 | $3,960/year Developer Licenses (10 licenses) | N/A |
| Tier 12 | $5,280/year Developer Licenses (20 licenses) | N/A |
| Tier 13 | Free Form.io SaaS Enterprise Project (Trial) | N/A |
| Tier 14 | $300/month Form.io SaaS Enterprise Project (Post-Trial) | N/A |
| Tier 15 | Free Remotely Deployed Starter Configuration (Trial) | N/A |
Pricing verified from each vendor's public pricing page. Compare in detail on Form.io pricing and Fillout pricing.
Who Should Use What?
On a budget?
Both are freemium. Compare plans on their websites.
Go with: Form.io
Want the highest-rated option?
Form.io is rated 4.3/5. Fillout has no ratings yet.
Go with: Form.io
Value user reviews?
Form.io: 40 reviews (4.3/5). Fillout: no ratings yet.
Go with: Form.io
3 Questions to Help You Decide
What's your budget?
Both are freemium. Pricing won't help you decide here.
What's your use case?
Both are form builders tools. Compare their specific features to decide.
How important are ratings?
Form.io is rated 4.3/5; Fillout has no ratings yet.
Key Takeaways
Fillout
- Free tier available
- Our pick for this comparison
Form.io
- Choose if you want the self-hosted developer productivity platform for building forms and APIs within your applications
The Bottom Line
Fillout is our pick.
Frequently Asked Questions
Is Form.io or Fillout better?
Fillout is rated in our evaluation. Both are freemium.
What are Form.io and Fillout used for?
Form.io: The self-hosted developer productivity platform for building forms and APIs within your applications.. Fillout: Build beautiful forms with logic, payments, and 50+ integrations.
What does Form.io cost vs Fillout?
Form.io is freemium (free tier + paid plans). Fillout is freemium (free tier + paid plans). Visit their websites for detailed pricing.