F

Foundation

The most advanced responsive front-end framework

The most advanced responsive front-end framework in the world. Foundation for Sites provides a complete set of UI components for building responsive websites.

30K

GitHub Stars

supported

TypeScript

medium

Learning Curve

3.8

DX Score

Visit Website → Documentation GitHub

Pricing

Model

free

Free Tier

MIT licensed, fully open source

Features

✓ XY Grid system
✓ Motion UI animations
✓ Accessibility focused
✓ JavaScript plugins
✓ Sass mixins
✓ Responsive breakpoints
✓ Building blocks
✓ CLI tools

Pros

+ Enterprise-grade framework
+ Excellent accessibility support
+ Flexible grid system
+ Animation library included
+ Professional quality components

Cons

- Steeper learning curve
- Smaller community than Bootstrap
- Heavier than minimal alternatives
- Less active development

Best For

enterprise

Alternatives

Bootstrap

Bulma

Tailwind CSS

css enterprise responsive accessibility grid