With all of the trend changes and advancements that CSS goes through, we shouldn’t be surprised at the volume of free resources and tools that have been released recently. These time-saving CSS libraries and tools have been built to make your lives that little bit easier and also offer a clear learning window into CSS properties that you may not have adopted yet, or fully understand quite yet.
In this collection we have collected 50 of our favorite CSS libraries, frameworks, and tools that have all been released this year.
All of the tools and libraries have been categorized into the following categories: Flexbox Tools & Libraries, CSS Grid Tools, CSS Button Libraries, CSS Components, CSS Animation Tools, CSS References, Guides & Checklists, Atomic CSS Frameworks,CSS Web Frameworks, Lightweight CSS Frameworks, and finally, a bunch of Miscellanous CSS Tools.
CSS Flexbox Tools & Libraries
Waffle Grid – An easy to use flexbox grid system.
RAGrid – A flexbox grid that uses recognizable attributes instead of classes.
Taffy – An open source, lightweight, modern CSS framework built with Flexbox.
Griddd – A dead simple, customisable, flexbox-based grid.
Flexbox Cheatsheet – An interactive guide for CSS Flexbox properties, with plenty of examples.
For more Flexbox resources, take a look at this post.
CSS Grid Tools & Libraries
Griddy – An online tool for learning the CSS Grid.
Graaf – A collection of pure CSS grid overlays for designing.
CSS Grid Cheat Sheet
CSS Grid Cheat Sheet – A CSS grid visual guide.
For an introduction to CSS Grid, take a look at this post.
CSS Button Libraries
Bttn.css – Awesome buttons for awesome projects!
Hover Buttons Library
Hover Buttons Library – A collection of animated CSS/SCSS buttons.
Buttons – A collection of CSS buttons.
Social Share Kit
Foundation Building Blocks
Foundation Building Blocks – Collection of over 100 components to jump start your projects.
Balloon.css – Simple tooltips made of pure CSS.
Fontisto – The iconic font and CSS toolkit.
Pretty Checkbox – A pure CSS library to beautify checkbox and radio buttons.
CSS Checkbox Library
CSS Checkbox Library – A huge library of CSS Checkboxes for every taste.
SCSS Only Slider
SCSS Only Slider – This tutorial will teach you how to create a SCSS only responsive slider.
CSS Loader – Simple loaders for your web applications using only one div and pure CSS.
CSS Animation Tools & Libraries
Animatelo – Just-add-water Web Animations.
Vivify – A free CSS animation library.
Animista – A place where you can play with a collection of pre-made CSS animations, tweak them and get only those you will actually use.
Obnoxious.CSS – Animations for the strong of heart, and weak of mind.
For even more CSS animation tools and resources, take a look at this round-up.
CSS References, Guides & Checklists
50 Cheatsheets, References and Guides for CSS – A huge collection of CSS-related cheatsheets and guides that span a variety of subjects.
CSS Database – A comprehensive list of CSS features and their positions in the process of becoming implemented web standards.
CSS Triggers – An interactive resource that lets you see how CSS properties utilize browser resources.
Flawless Typography Checklist
Flawless Typography Checklist – A complete typography master course in the form of an interactive visual checklist.
Sassmagic – An extensive Sass reference guide.
Boilrplate – A curated directory of boilerplates to help you start your projects.
Atomic CSS Frameworks
Fractures– A Baseline atomic CSS toolkit that helps you bootstrap design-systems and prototypes by providing a set of non-blocking, atomic, utility classes.
Biomatic UI – A flexible atomic-focused CSS framework.
CSS Web Frameworks
Tailwind CSS – A utility-first CSS framework for rapid UI development.
PaperCSS – The less formal CSS framework.
Shoelace.css – A back to the basics CSS starter kit, for when you don’t need the whole boot.
Turret CSS – A styles and browser behaviour normalisation framework for rapid development of responsive and accessible websites.
Trowel – A Sass toolkit that allows you to create and use CSS frameworks.
Unnamed – A colorful CSS framework made by a human not an Ai.
awsm.css – A CSS library for beautify semantic HTML markup without classes, attributes, etc.
Brutalist Framework – An open source framework for the brutalist web design trend.
BBC Grandstand – A collection of common CSS abstractions and utility helper classes.
iotaCSS – A smart open source SASS based OOCSS framework built for scale.
Semantic UI – A development framework that helps create beautiful, responsive layouts using human-friendly HTML.
Luxbar – Featherweight, responsive, CSS only navigation bar.
mini.css – Aims to provide as much functionality as possible in about 5KB gzipped.
Wireframe CSS – A minimal CSS framework for wireframing.
Less Grid Boilerplate
Less Grid Boilerplate – A lightweight 12-column CSS grid system built with CSS Grid and LESS.
Petal – A modern, light CSS UI framework. Based on LESS.
Tent CSS – Pulling inspiration from outdoor survival, Tent CSS is unglamorously simple and robust. The framework is designed to be used as a foundation for building websites.
Spectre.css – A lightweight, responsive and modern CSS framework for faster and extensible development.
We recently published a collection of new, lightweight CSS frameworks.
Miscellanous CSS Tools
Gradientify – A collection of top gradients with copy and paste CSS code.
Critical Path CSS Generator
Critical Path CSS Generator – Speed up your page render time in no time.
Grabient – An online tool for creating all sorts of gradients that can be exported as CSS or to Sketch.
CSSRooster – A bot that writes CSS classes for HTML with deep learning.
WebGradients – A free collection of 180 linear gradients that you can use as content backdrops in any part of your website.
Angled Edges – A Sass mixin for creating angled edges on sections by dynamically encoding SVGs.
Plumber – Create better looking documents and speed up CSS development by adding vertical rhythm to your page.
For more web designer tools: 50 Tiny, Time-Saving, and Free Tools for Web Designers.
You might also like to take a look at the Top 50 CSS Tools from earlier in the year.