30+ Best Free HTML5/CSS3 UI Kits for Fast Web Design

CSS UI Kits have large number of basic and essential elements for a web design and is available for free download. These ui kits can speed up your web development process to new heights thus giving you extra time to spare. Copy the html and css code into your web page elements and you are all set to enjoy the beautiful design. With raging trend of flat design we have included them in our topic as well as it is currently seek more often by the design community. Make sure to check browser compatibility before implementing them in your popular websites as these user interface elements are not 100% tested.

Changing element color to match your website tone is simple and you just have to use some hex code websites to match your needs. Photoshop PSD can be found in some kits here but they are just additional feature as we don’t need it here as the work is  almost completed by converting them into HTML, CSS & JS. I have included some css ui frameworks which have less code and still does the work perfectly. Check all these frameworks and they are fun to play around. Also psd ui kits are also introduced in our last topic.

Stay tuned for more updates on this as i will keep checking for best html & css3 ui kits. Here you will 25 free ui kits with css3 which can be downloaded and which are workable in local system before moving to the server.

Also find more amazing topics to improve your productivity

Material Kit

Demo More Info / Download

free bootstrap 3 ui kit with material design

Paper Kit

Demo More Info / Download

paper kit - bootstrap ui template


Poly ui kit

A simple ui kit to get you started with basic navigation, login forms, grid system and tab accordion and much more.

Demo Download

polu - css3 ui kit


This is a simple ui kit which has a small memory footprint to load all web elements included with it faster than you can expect.  It is built on top of Normalize.css and can offer real benefits to those who are already familiar with the platform. This is a must have as it provides a huge variety of pre built layouts to get to started instantly.


pure css ui kit


A light weight ui kit developed by arun and forked in github which is meant to offload your work on creating great looking html template from scratch. Css mint has brilliant pricing card templates, photo cards, tables, buttons, sign in forms and even upload buttons to get you started in a matter of minutes.


Lightweight and simple to use UI Kit

Bootstrap 3 UI Kit – Get it Done

A bootstrap 3 template for creating amazing html templates with easy code can be done with this kit. With all essential elements including html,css, js files this css ui kit can be a powerful tool for any newbie or expert developers.

Download Page

Creative ui Kit

One UI Kit for Boostrap 4

Demo More Info / Download

one ui kit in css

Availity UI Kit

Demo More Info / Download

Availity UI Kit powered by Bootstrap 3

Modern Flat Dashboard UI Kit

A visually appealing dashboard for your business with free css3 code is ready to download. Contains some dashboard elements as well as widgets to make your website sidebar look cool.

Demo Download

dashboard kit for websites

Pixelkit 10 Free Bootstrap-UI-Kits

A kit with  over 10 theme UI styles for those who like to speed up the designs. Since this kit comes with bootstrap framework most developers, designers will find it easy to work with. Humongous css and less ui kit for all.


pixel css uikit

Responsive Flat UI

A set of these UI elements to both integrate and sit side by side with the latest version of Bootstrap. This set also contains amazing eCommerce basket to add cart options to your theme with download buttons as an alternative option.


responsive flatui


Flat Admin UIkit

A simple dashboard kit for your admin page with nice flat design visuals to improve overall usage. Showcase a particular place with current weather, summary of the important places etc.


flat uikit


Creative CSS Ui kit

A responsive css kit with all price template, widgets like twitter tweet displays, download hover buttons, social buttons, a cool slider. Must have pure css snippet for all.


ios flat css uikit


Email UI kit Dashboard

A UI kit for email management with flat design style and many more options. Place to compose, sent, receive mails are already represented with sidebar menus.


email dashboard

BOOTFLAT – open source Flat UI KIT

A faster workaround for smarter design elements with HTML CSS code which can be implemented right away on your website. Built with bootstrap 3.1 css framework and visually flat, bootflat is now a resourceful tool for many designers and developers. Must have ui kit for all who code.



Interactive Flat Design UI / Only HTML5 & CSS3

An all in one dashboard template which is purely css3 in design. This snippet code can be downloaded from codepen.


Interactive Flat Design UI

Free HTML Flat UI

Flat UI Free is made on the basis of Twitter Bootstrap in a stunning flat-style, and the kit also includes a PSD version for designers. Colored, stylish icons can easily be modified and used in a wide variety of projects, as they contain original layers. Glyphs are also available in psd, html/css and svg formats.



Free PSD/HTML Web UI Elements Kit (Set)

This time it’s about a cool Web User Interface Kit (Set) PSD, HTML + CSS + jQuery, that was specially made for DesignModo by our friends from Pixeden.


PSD Web UI Elements Kit


This includes everything from GUI switches and buttons, to radio buttons and checkboxes. I also included the Photoshop PSD file for those who want to edit the design or make the images bigger.



Futurico UI HTML

Futurico UI HTML is written using the SASS preprocessor. If you are not familiar with SASS you can use the CSS version instead. It would be quite hard to create this pack without having solid architecture & code style.



CSS styles for build Windows 8 Metro UI stylable interface.


Metro UI CSS


Here is my very first fully coded CSS3 UI Kit. This includes everything from a search box, checkboxes, radio buttons, and more! Everything is code! Enjoy .



Web ui css kit

The core framework of UI kit has almost no styling in order to keep it slim. Therefore we provide two additional distributions with a gradient and an almost flat style. Each style comes as a single CSS file as well as a minified version.


Customizer UIkit

CSS User Interface UI Kit

Metro style and semi-flat design are all the rage nowadays. Gumby 2’s UI kit embraces the latest design trends and allows you to pick and choose, or even mix flat design with more graduated design styles.


Design Styles ui kit


Make your ugly websites beautiful.  UI css is a tool for creating clean user interfaces for the web. The download includes a css file with styles for all the elements, including :hover and:active states. Enjoy!


ui.css kit

ML Strap: Twitter Bootstrap Theme

ML Strap is a UI kit and theme built on the well-known Twitter Bootstrap framework, which means the set is highly customizable and easy to use. The source file includes all the standard elements you need to design a website: buttons, input forms, toggles, navigation bars and much more, all available in .PSD and HTML5/CSS3.


Bootstrap template

Eureka UI Kit

A dark green ui kit for free with html & css elements.



YAUI Kit v2

Version 2 of Yet Another UI kit with HTML, css3 and js elements.


YAUI css jquery ui kit

Flat UI CSS/HTML kit

Free to use. Doesn’t work in Firefox, contributions are appreciated. (Navigation, Dropdowns, Checklist, Input, Search & Range).


free UI Kit

Free Flatby UI kit

Flatby is a free, flat ui kit for your projects. It uses SCSS type sass for stylesheets, and is (usualy) under development.


free Flatby UI

99Lime HTML KickStart

Ultra–Lean HTML5, CSS, & JS Building Blocks for Rapid Website Production. HTML KickStart Tested and working in IE 8+, Safari, Chrome, Firefox, Opera, Safari IOS, Browser and Chrome Android.


HTML KickStart

Do you find these interesting ? Get more css snippets for free.


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