---
title: "Skeleton vs Bootstrap 3 vs Foundation 5 - CSS Framework Comparison"
description: "Comparison of three popular CSS frameworks: Skeleton, Bootstrap 3, and Foundation 5. Which one to choose for your project?"
date: 2014-04-18
category: Web Development
tags: ["CSS", "Bootstrap", "Foundation", "frontend"]
url: https://uper.pl/en/blog/skeleton-bootstrap-foundation-comparison/
---

# Skeleton vs Bootstrap 3 vs Foundation 5 - CSS Framework Comparison

Choosing a CSS framework greatly impacts project development. Let's compare three popular solutions: Skeleton, Bootstrap 3, and Foundation 5.

## Skeleton

**Characteristics:**
- Fixed 960px grid with 16 columns
- Minimalist UI toolkit
- Very lightweight structure (~400 lines CSS)

**Advantages:**
- Simplicity and lightness
- Easy to learn
- Doesn't impose style

**Disadvantages:**
- No responsiveness (fixed width)
- Limited components
- Last update: 2012

## Bootstrap 3

**Characteristics:**
- Fluid 12-column grid
- Responsive (breakpoints: 480px, 768px, 992px, 1200px)
- Mobile-first from version 3
- Rich set of UI components

**Advantages:**
- Huge community and documentation
- Many ready-made templates
- Regular updates

**Disadvantages:**
- Large size
- "Bootstra

ppy" look of sites
- May be overkill for small projects

## Foundation 5

**Characteristics:**
- Configurable grid (default 12 columns, possible 1-16)
- Mobile-first with advanced optimization
- SASS support
- Responsive media and video

**Advantages:**
- Greatest configuration flexibility
- Advanced mobile features
- Form validation
- Touch device optimization

**Disadvantages:**
- Steeper learning curve
- Smaller community than Bootstrap

## Comparison

| Feature | Skeleton | Bootstrap 3 | Foundation 5 |
|-------|----------|-------------|--------------|
| Size | ~400 lines | ~6000+ lines | ~5000+ lines |
| Grid | Fixed 960px | Fluid 12-col | Fluid, configurable |
| Mobile-first | No | Yes | Yes |
| Preprocessor | No | LESS | SASS |
| Components | Minimum | Rich set | Rich set |

## Which to Choose?

- **Skeleton** - for simple, static sites
- **Bootstrap** - for rapid prototyping and standard projects
- **Foundation** - for advanced mobile projects

## Summary

Each framework has its place. Bootstrap offers the fastest start, Foundation gives the most control, and Skeleton is ideal when you need the minimum.