Zero Config
Zero FOUC
Zero Runtime
CSS in JS Preprocessor

Building the Future of CSS-in-JS
Analyze all possible scenarios at the fastest speed and style with optimal performance.
Get started
Star
Loading
Sponsor

Comparison Benchmarks

Next.js 16.3.3 cold build (GitHub Actions, run 33254030962)
Devup UI1.0.40
Next.js Build Time (single CSS)
10.81s
Build Size
63.45MB
Devup UI1.0.40
Next.js Build Time (single CSS)
10.81s
Build Size
63.45MB
Chakra UI3.37.0
Build Time19.98s
Build Size197.02MB
Mui9.4.0
Build Time13.78s
Build Size95.94MB
Kuma UI1.6.4
Build Time13.07s
Build Size71.28MB
Tailwindcss4.3.3
Build Time12.81s
Build Size63.37MB
panda CSS1.12.0
Build Time13.20s
Build Size67.68MB
styleX0.19.0
Build Time27.61s
Build Size91.00MB
vanilla extract1.21.2
Build Time11.96s
Build Size64.55MB

Features

Devup UI offers a performance-optimized CSS-in-JS system, theme typing,
and amazing features for faster and safer development.

Zero Runtime

A futuristic design that eliminates the root causes of performance degradation.

Top Performance

The fastest build speed and the smallest bundle size among CSS-in-JS solutions.

Type Safety

Enhanced DX with typing-based support.

Figma Plugin

A Figma plugin enabling safer and faster development.
Go Figma Community

Join our community

Join our Discord and help build the future of frontend with CSS-in-JS!
Open KakaoTalk
Join our Discord