Plasmo
The browser extension platform
Radix UI
Open-source UI components for building accessible web apps
Updated February 2026
| Plasmo | Radix UI | |
|---|---|---|
| Rating | 4.8★ | 5.0★ |
| Reviews | 29 | 24 |
| Pros | 0 | 10 |
| FactScore™ | 70.8 | 69.9 |
FactScore™ Comparison
FactScore™ weighs both quality (rating) and popularity (reviews) for a fairer ranking than stars alone.
Pros & Cons
Only in Plasmo — Pros
No unique pros listedBoth tools — Pros
—Only in Radix UI — Pros
Accessible UI components Developer experience Un-styled components React compatibility Community involvement Customizable Excellent documentation Fast performance Headless component library Theme componentOnly in Plasmo — Cons
Lack of supportBoth tools — Cons
—Only in Radix UI — Cons
Customizable Limited built-in componentsDetails
| Plasmo | Radix UI | |
|---|---|---|
| Categories | Engineering & Development, Chrome Extensions | Interface design tools, Engineering & Development, UI frameworks |
| Platforms | Web | Web |
| Became Popular | March 21, 2023 | December 17, 2020 |
| Website | www.plasmo.com | radix-ui.com |
Who Should Pick Which?
Choose Plasmo if...
- No unique pros listed
Choose Radix UI if...
- Accessible UI components
- Developer experience
- Un-styled components
With a FactScore™ of 70.8 vs 69.9, Plasmo leads in community reception. Plasmo uniquely offers No unique pros listed, while Radix UI stands out for Accessible UI components and Developer experience.
What Users Say
Plasmo
Plasmo massively simplified the browser extension creation experience by offering SDK tools that streamline the development process. With Plasmo, I could write React code within relevant folders (e...
We recently wrote a browser extension[1] without any prior experience, and Plasmo made it a breeze. Right from the start, we could focus on what we wanted to build, and not worry about the messy de...
Plasmo's browser extension framework saved us months of development time with its streamlined workflows and modern tooling. We chose it over alternatives for its excellent TypeScript support, hot r...
Radix UI
Perfection! It really shows that you have thought about the DX and APIs all the way through, there are so many good and clever features here. I've always been a fan of Radix, but this is one level ...
So many websites have buggy dropdowns and modals. With Radix, these primitives just work, i.e., pressing ESC just closes a modal as you'd expect. No customization needed. Would love for them to exp...
As part of a larger effort to reduce complexity in our own codebase and increase accessibility of Strapi products, we've made the decision to migrate to Radix-UI primitives for many of our components
Frequently Asked Questions
Which is better, Plasmo or Radix UI?
Based on FactScore™, Plasmo leads with a score of 70.8 vs 69.9. Plasmo has a higher rating of 4.8★ compared to 5.0★.
What are the pros of Plasmo compared to Radix UI?
Plasmo uniquely offers: No unique pros listed.
What are the pros of Radix UI compared to Plasmo?
Radix UI uniquely offers: Accessible UI components, Developer experience, Un-styled components, React compatibility, Community involvement.
Is Plasmo better rated than Radix UI?
Plasmo is rated 4.8★ from 29 reviews. Radix UI is rated 5.0★ from 24 reviews.
What is the FactScore™ of Plasmo and Radix UI?
FactScore™ weighs rating and review volume together. Plasmo scores 70.8 and Radix UI scores 69.9.
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