Builder.io vs Cosmic: Which Should You Choose in 2026?
Choosing between Builder.io and Cosmic 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.
By Toolradar Team · Last updated February 28, 2026 · Methodology
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Builder.io
Visual headless CMS and page builder
Best for you if:
- • You want the higher-rated option (8.4/10 vs 0.0/10)
- • You need ui/ux design features specifically
- • Builder.io is a visual development platform with AI-powered design-to-code
- • It enables visual editing for any tech stack with component-based architecture
Cosmic
Headless CMS with AI to build and deploy applications 10x faster.
Best for you if:
- • You need ai coding features specifically
- • AI-powered headless CMS for rapid content and code generation.
- • Streamlines development and content workflows with AI agents and automations.
| At a Glance |  Builder.io | |
|---|---|---|
Price | Free + Paid | Free + Paid |
Best For | UI/UX Design | AI Coding |
Rating | 84/100 | —/100 |
| Feature | Builder.io | Cosmic |
|---|---|---|
| Pricing Model | Freemium | Freemium |
| Editorial Score | 84 | — |
| Community Rating | No ratings yet | No ratings yet |
| Total Reviews | 0 | 0 |
| Community Upvotes | 0 | 0 |
| Categories | UI/UX DesignLanding Pages | AI CodingHosting & Deployment |
How Builder.io and Cosmic Compare
Builder.io
Visual headless CMS and page builder
Free tier available · 84/100 score
Cosmic
Headless CMS with AI to build and deploy applications 10x faster.
Free tier available
Builder.io is a ui/ux design tool. Cosmic is in ai coding.
Who Should Use What?
On a budget?
Both are freemium. Compare plans on their websites.
Go with: Builder.io
Want the highest-rated option?
Builder.io scores 84/100. Cosmic is unrated.
Go with: Builder.io
Value user reviews?
Neither has user reviews yet.
Go with: Builder.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?
Builder.io is a ui/ux design tool. Cosmic is in ai coding. Pick the category that matches your needs.
How important are ratings?
Not all tools have been rated yet.
Key Takeaways
Builder.io
- Higher score: 84/100 vs unrated
- Free tier available
- Our pick for this comparison
Cosmic
- Better fit for ai coding
The Bottom Line
Builder.io (84/100) is our pick.
Frequently Asked Questions
Is Builder.io or Cosmic better?
Builder.io scores 84/100 in our evaluation. Both are freemium.
What are Builder.io and Cosmic used for?
Builder.io: Visual headless CMS and page builder. Cosmic: Headless CMS with AI to build and deploy applications 10x faster..
What does Builder.io cost vs Cosmic?
Builder.io is freemium (free tier + paid plans). Cosmic is freemium (free tier + paid plans). Visit their websites for detailed pricing.