Tailwind CSS
Leading#2 in Open sourcehigh confidence
The utility-first CSS framework (~96k★) underpinning shadcn/ui and daisyUI — the de-facto styling layer for modern component work.Our read
Why it ranks #2
One of the most adopted styling projects in the category at roughly 96k GitHub stars and hundreds of millions of recent npm downloads, underpinning shadcn/ui, daisyUI, and a large share of agent-generated web UIs.Here is the catch
long utility strings can make markup dense and difficult to scan
the class vocabulary has an upfront learning curve
dynamically constructed class names require care to be detected by the build process
Does this well
reviewers consistently value the speed of styling without switching between component and CSS files
shared utility constraints make spacing and visual tokens more consistent
large ecosystem and strong agent familiarity make examples and integrations easy to find
Pricing
Checked by hand on 2026-07-23. Prices in this category change often — if this looks wrong, it probably is.
Key features
Utility-first CSS compositionResponsive and state variantsTheme tokens and custom utilitiesBuild-time CSS generation
Sources we read
Quick facts
More in this area
The rest of the Open source column.- 1shadcn/uiThe dominant modern UI approach (~119.7k★) — copy-paste, own-your-code React components (Radix + Tailwind) that coding agents build most component UIs from.
- 3Material UI (MUI)The longest-standing React component library (~98.6k★) implementing Google's Material Design — the enterprise default for years.
- 4Ant DesignEnterprise-class React component library (~98.8k★) — comprehensive components, hugely adopted in enterprise and across Asia.
- 5daisyUIThe most popular Tailwind component library (~41.8k★) — semantic class names and themes layered on top of Tailwind.
- 6Chakra UIAccessible, composable React component system (~40.5k★) — a popular choice for SaaS product UIs.
- 7Radix UI (Primitives)Low-level accessible, unstyled React primitives (~19.1k★) — the foundation shadcn/ui is built on.