head to head · open source
primitives vs ux-ui-agent-skills
primitives has 19,340 GitHub stars, 1,250 forks, 356 open issues and last shipped 2 months ago. ux-ui-agent-skills has 1,481 stars, 157 forks, 6 open issues and last shipped 12 days ago. primitives leads on adoption by 1,206% (19,340 vs 1,481 stars). primitives is written in TypeScript under MIT; ux-ui-agent-skills is written in JavaScript under MIT. primitives has attracted 6% as many forks as stars, ux-ui-agent-skills 11%. ux-ui-agent-skills was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (accessibility, component-library, react), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| primitives | ux-ui-agent-skills | |
|---|---|---|
| GitHub stars | ★ 19K | ★ 1.5K |
| License | MIT | MIT |
| Written in | TypeScript | JavaScript |
| Last push | 2026-08-08 | 2026-09-16 |
| Forks | ⑂ 1.3K | ⑂ 157 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick primitives if
- You weight community size — 19K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick ux-ui-agent-skills if
- You want the ux-ui-agent-skills feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches JavaScript
- You evaluated both and ux-ui-agent-skills fits your workflow better
About primitives
Radix Primitives is an MIT licensed, TypeScript UI component library for React, maintained by WorkOS, that gives teams building design systems and web apps low level components focused on accessibility, customization and developer experience.
read the full primitives overview →
About ux-ui-agent-skills
ux ui agent skills is an MIT licensed kit of structured instructions, design tokens, runnable skills and 138 brand grade design systems that turns Claude into a senior design architect, aimed at product engineers, design system maintainers and design to code teams who need accessible, token driven interface output generated inside their own project.
read the full ux-ui-agent-skills overview →
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Frequently asked questions
Is primitives or ux-ui-agent-skills more popular?
primitives has 19,340 GitHub stars and ux-ui-agent-skills has 1,481. primitives has the larger community by that measure.
Are primitives and ux-ui-agent-skills free?
Both are open source. primitives is licensed under MIT and ux-ui-agent-skills under MIT. Neither carries a licence fee.
What is the difference between primitives and ux-ui-agent-skills?
primitives is written in TypeScript and ux-ui-agent-skills in JavaScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, primitives or ux-ui-agent-skills?
Choose primitives if you want the larger community (19,340 stars) or its MIT licence terms. Choose ux-ui-agent-skills if its feature set, stack or MIT licence fits better. Both are self-hostable.