Radix UI
Open-source UI components for building accessible web apps
Sidekick Open Source
Like Chrome DevTools for your backend → now open source!
Updated February 2026
| Radix UI | Sidekick Open Source | |
|---|---|---|
| Rating | 5.0★ | 5.0★ |
| Reviews | 24 | 1 |
| Pros | 10 | 3 |
| FactScore™ | 69.9 | 15.1 |
FactScore™ Comparison
FactScore™ weighs both quality (rating) and popularity (reviews) for a fairer ranking than stars alone.
Pros & Cons
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 componentBoth tools — Pros
—Only in Sidekick Open Source — Pros
Community growth potential Easy configuration Open sourceOnly in Radix UI — Cons
Customizable Limited built-in componentsBoth tools — Cons
—Only in Sidekick Open Source — Cons
—Details
| Radix UI | Sidekick Open Source | |
|---|---|---|
| Categories | Interface design tools, Engineering & Development, UI frameworks | Engineering & Development, Command line tools, Code Review Tools |
| Platforms | Web | Web |
| Became Popular | December 17, 2020 | August 24, 2022 |
| Website | radix-ui.com | github.com |
Who Should Pick Which?
Choose Radix UI if...
- Accessible UI components
- Developer experience
- Un-styled components
Choose Sidekick Open Source if...
- Community growth potential
- Easy configuration
- Open source
With a FactScore™ of 69.9 vs 15.1, Radix UI leads in community reception. Radix UI uniquely offers Accessible UI components and Developer experience, while Sidekick Open Source stands out for Community growth potential and Easy configuration.
What Users Say
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
Sidekick Open Source
Excellent! Easy to configure.
Related Comparisons
Frequently Asked Questions
Which is better, Radix UI or Sidekick Open Source?
Based on FactScore™, Radix UI leads with a score of 69.9 vs 15.1. Radix UI has a higher rating of 5.0★ compared to 5.0★.
What are the pros of Radix UI compared to Sidekick Open Source?
Radix UI uniquely offers: Accessible UI components, Developer experience, Un-styled components, React compatibility, Community involvement.
What are the pros of Sidekick Open Source compared to Radix UI?
Sidekick Open Source uniquely offers: Community growth potential, Easy configuration, Open source.
Is Radix UI better rated than Sidekick Open Source?
Radix UI is rated 5.0★ from 24 reviews. Sidekick Open Source is rated 5.0★ from 1 reviews.
What is the FactScore™ of Radix UI and Sidekick Open Source?
FactScore™ weighs rating and review volume together. Radix UI scores 69.9 and Sidekick Open Source scores 15.1.
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