Best Simple Grid Alternatives & Competitors in 2025

Simple and flexible HTML, CSS, and JS for popular UI components and interactions.

Key Bootstrap features:

Responsive Design Pre-designed Components Cross-browser Compatibility Extensive Documentation

Open Source

Grid based on CSS3 flexbox.

Key Flexbox Grid features:

Responsive Design Simplified Alignment Consistency Cross-Browser Compatibility

Open Source

RealityMAX is the AI-powered 3D design collaboration platform, 100% online. Cooperate remotely with your colleagues on 3D projects and easily share your work with clients. Create Web3D and AR experiences in a snap, without a line of code.

Key RealityMAX features:

AI image enhancer Upload multiple 3D models Edit 3D model materials Change 3D model texture

Visit website freemium $40.0 / Monthly (Pro with up to 500 GB of storage space)

Automatically build your grid design's CSS code ✨.

Key CSS Gridish features:

Enhanced Layout Control IBM's Reliable Backing Integration with Design Tools Responsive Design Support

Open Source

Bulma is an open source CSS framework based on Flexbox and built with Sass. It's 100% responsive, fully modular, and available for free.

Key Bulma features:

Simple and Elegant Design Responsive Layouts Ease of Use BEM Methodology

Open Source

🏊 + ⛵️ + 👨‍💻 | 🇦🇺 ↔️ 🇧🇪.

Key Lucas Gruwez features:

Diverse Project Portfolio Active Contributions Open Source Involvement Comprehensive Documentation

Build awesome user interfaces with CSS flexbox.

Key FlexboxPatterns features:

Ease of Use Time-Saving Educational Resource

A utility-first CSS framework for rapidly building custom user interfaces.

Key Tailwind CSS features:

Utility-First Approach Customization Consistent Design Responsive Design

Open Source

An email course about emotional design.

A modern responsive front-end framework based on Material Design.

Key Materialize CSS features:

Responsive Design Material Design Component Variety Customization

Open Source

A Beautiful Boilerplate for Responsive, Mobile-Friendly Development.

Key Skeleton CSS features:

Lightweight Simplicity Responsive Grid Clean Design

Open Source

A set of small, responsive CSS modules that you can use in every web project.

Key Purecss features:

Lightweight Responsive Modular Easy Integration

Open Source

A lightweight and modular front-end framework for developing fast and powerful web interfaces.

Key UIKit features:

Modularity Extensive Documentation Responsive Design Customization

Open Source

Latest mobile design patterns & elements library.

Key Mobbin features:

Extensive UI Database Search and Filter High-Quality Screenshots Regular Updates