Layer CSS

Lightweight CSS framework to build your own fluid layouts

20 Alternatives To Layer CSS

Bootstrap Zero

Open-source, free Bootstrap templates collection.
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Bulma

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

CSS Grid Generator

Simple tool to generate css grids

CSS Peeper

Smart CSS viewer tailored for Designers.

Figma Super Tidy

Figma plugin to easily align, rename and reorder your frames

Lit

World’s smallest responsive CSS framework (398 bytes!)
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Material-UI

A CSS Framework and a Set of React Components that Implement Google’s Material Design

Method Wireframe Kit

Find your method of being incredibly fast in prototyping.
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Milligram

A minimalist CSS framework

One Stop Map

A huge collection of editable & printable vector maps

Proto

Proto® Mini Impact Wrenches- Pistol Grip Proto® Flex Head Precision 90 Pear Head Ratchets Proto® 550E 88" Power Workstation - 18 Drawer, Safety Red and Gray J558846-18SG-PD Proto® 550E 88" Power Workstation - 18 Drawer, Safety Red and Gray Proto® Mu…

Purgecss

Easily remove unused CSS
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Renaissance

The Freshest CSS Framework

SnapUp

Wireframe faster / create amazing user interfaces

Spectre

Spectre is a web application to diff screenshots.

Unnamed

A colorful CSS framework made by a human not an AI

Unused CSS finder

Crawl your website and find unused CSS

WING

A phone carrier that is actually nice to you.

Wireframe Deck of Cards

A physical way to build and revise website and app layouts