20+ Best Free & Premium Bootstrap UI Kits for 2021

bootstrap UI kit

If you are a designer and looking for a great bootstrap UI kit, then this article will help you find the best & fresh UI kits for 2021 that will make your design look more attractive and highly compelling.🤩

The design quality of a website or application you are building majorly depends on the quality of tools you are using for your workflow. It’s always a great idea of designing a project using available resources, rather than designing an application from scratch. This is where a UI kit comes into the picture.

Before moving to the collection, let’s first understand what exactly UI kits are and why you should use this for your design? Don’t worry!! We’ll soon explore this great collection.🙂

What is the User Interface (UI)?

UI kits are a set of useful resources that allows you to properly plan the structure of your design without sacrificing your unique and original ideas. A UI kit generally contains an assortment of graphic files including UI components for the purpose of user interface design. With the help of UI kits, designers can create outstanding visuals in reasonable timeframes. So instead of wasting your time figuring out how to implement components, UI kits let you focus on what you do best: creating great designs.

The Bootstrap UI kit contains UI components like fonts, layered design files, icons, color variations, documentation, and HTML/CSS files. The selection of bootstrap UI kits heavily depends on design requirements. There are UI kits can that are fairly simple with a few buttons and design components, and extremely robust with toggles that change fonts, colors, and shapes. You can check the image below to get an idea about a few useful UI kit components.

Why you should use the Bootstrap UI kit?🧐

There are some reasonable benefits of using Bootstrap UI kit for your application like:

  • It helps in saving a huge amount of designing time.
  • You don’t need to start designing from scratch.
  • It helps in increasing your productivity and profitability.
  • You can easily change your design and add elements and components anytime.
  • A good UI kit helps you develop your design skills.

If you are looking for free bootstrap admin templates for your next great app look no further, we have a great collection of Bootstrap Admin Template Free Download and Bootstrap Admin Template Github that can help you to develop responsive and elegant web apps.🔥

Check out this excellent article for more details on “What’s a UI Kit and Why Should You Use One?”.🔥

You can also go through this article if you don’t know how to use the UI kit in the Interface.

Now, Let’s check out the collection of Bootstrap UI kits for 2020 below:🔥

Frest UI Kit Sketch Template (Premium)🔥

Frest UI kit is compatible with sketch, Figma, and Adobe XD. This is a clean and minimal designed UI kit with reach UI components and elements that a developer looks for. Frest is also well documented and can be used for any kind of web application.


  • Clean & minimal design
  • Bootstrap grid Systems
  • Detailed UI
  • Organized layered sketch files
  • Trendy google fonts
  • Set of icons
  • Includes 5 well-organized layouts
  • 50+ elements, 60+ components
  • 40+ charts, 2 dashboards, 7 Applications

Free Material Design UI Kit is a Bootstrap 4 UI Kit with a modern, new design inspired by Google’s material design. This kit features some additions that extend the normal Bootstrap components with exciting new features and web elements that are surely going to spice things up in your designs. The first impressions are clear, the kit is going to add more creativity to your designs, the look of the component designs becomes more mature, and in turn more modern and appealing.


  • Buttons with Many different sizes
  • Material Design With Material Color
  • Carousel
  • Breadcrumbs with 2 different variants.
  • Contextual variations badge.
  • 4 different types of inputs.
  • Checkbox & Radio Buttons
  • Navigation comes with 2 unique & modern design.
  • Pagination with 2 styles rounded and circle style.
  • 8 type of typography scale category
  • 3 type of javascript components
Pixel Lite – Free Bootstrap 4 UI KIT

Pixel lite is an accessible first and open source Bootstrap UI Kit under the MIT License. It also features over 80 premium elements and 4 example pages. Besides, Pixel Lite Bootstrap 4 UI Kit is a well crafted UI Kit based on Bootstrap 4 Components. Furthermore, the Kit is Mobile First and Fully Responsive.


  • 100 premium Bootstrap 4 Components
  • 3 fully responsive pages
  • 100% W3C Validated files
  • Vibrant and bright colors
  • Well documented
  • Images, logos, and fonts are free
Pixel Pro – Premium Bootstrap UI Kit

Pixel Pro is a premium Bootstrap UI Kit featuring over 1000 components, 35 examples pages, and a fully-fledged dashboard. Currently, at version 4 and with over a year of updates it is one of the bestseller items on Themesberg empowering over 150 developers who already purchased this product. It is fully responsive and 100% W3C HTML validated.

Documentation: https://themesberg.com/docs/pixel-bootstrap/getting-started/quick-start/


– over 1000 premium Bootstrap components
– 35 example pages including 3 landing pages, pricing, contact, support center, etc.
– user dashboard included with messaging, invoices, settings
– online documentation for components, getting started
– 6 months of premium support
– the latest stable version of Bootstrap 4.5
– upcoming version for Bootstrap 5 alpha
– Sass files included
– Gulp and BrowserSync for development workflow
– quality checked by Themesberg
Shards – Web UI Kit (Free)

Shards is a modern UI toolkit for web makers based on the popular Bootstrap 4 framework. With Bootstrap 4 at its core, Shards is responsive by default being able to adapt and reflow its layout to any screen size.


  • Free UI Kit
  • MIT License
  • Version: 3.0.0
  • Requires: 4.3.1
  • 10 extra custom components
  • 2 custom pre-build landing pages
  • Supports both Material and Font Awesome Icon packs
Material Design for Bootstrap 4 (Free)

Material Design Bootstrap is a professionally implemented Bootstrap 4 UI html kits with material design look and feel. It has 400+ material UI elements, 600+ material icons, 74 CSS animations, SASS files, templates, tutorials and many more.


  • Free to use for personal or commercial use
  • 500+ material UI elements, 600+ material icons and 77+ CSS animations
  • 5000+ Basic Components and 8+ Basic Modules
  • Enhanced Bootstrap Modals
  • It comes with BrandFlow – Bootstrap automation software

You can also check a quick guide video I have shared below to understand how to implement this UI kit in your project.


Startup UI Kit (Free)

Startup is a fully responsive UI kit. It is based on Bootstrap 4. This UI kit will make it a breeze to build your own clean landing pages and help launch your startup. The free version includes 16 UI cards that you can mix and match to create your own unique layouts. besides,  it is based on Bootstrap and you will find it very easy to expand and build upon the included templates.


  • Build with bootstrap 4
  • Free to use only for personal use
  • It includes 16 UI cards
Helium UI Kit (Free)

Helium is Free and Premium Bootstrap 4 UI Kit built with latest Bootstrap 4, comes with ready to use 100+ Handcrafted Components and UI Elements. The UI kit developed using the latest technologies such as – Bootstrap 4.3.x, HTML5, CSS3, and Sass. It is a very well-designed and highly-customizable Free Bootstrap UI Kit that comes with a block-based code structure, so you can build your own complete web layout in minutes. Each and every block is placed/categorized in separate HTML/CSS/Sass files.


  • Free Bootstrap 4 UI Kit
  • 100 Ready to use components and elements
  • It comes with Owl Carousel, Icon packs, form validator, maps, etc.
  • Clean and Responsive design
  • Sass used as stylesheet preprocessor
Web Flat Gui (Free)

Web Flat Gui UI Kit Responsive Web Template is a clean, Flat, and Sportive look Bootstrap Template Plain and bold UI kit that includes lots of user interface elements for web applications and widgets. It comes with a free flat responsive web design template. Web Flat Gui UI Kit template is built in a Fancy style, however, it can be customized as per the user requirements.


  • Free UI Kit
  • Highly Responsive
  • Designed with a clean flat grid system
  • It comes with Fluid Responsive Layout
  • Compatible Browsers: Google Chrome, Firefox, Safari, IE 10, Opera, etc
Material Mobile UI Kit (Free)

Material Mobile UI Kit is a clean, Flat and Sportive look Bootstrap Template Plain and bold UI kit that includes lots of user interface elements for web applications and widgets.


  • Free mobile UI kit
  • A clean flat grid system
  • For personal and commercial usage
  • Compatible Browsers: Google Chrome, Firefox, Safari, IE 10, Opera, etc
Fire UI Kit (Free)

Fire is a free Bootstrap ui Kit. It features a bold design and an massive number of design elements. Besides, there are 99 different UI elements and a fully responsive kit. Furthermore, this ui kit is a perfect choice for webpage as well as mobile app designs.

Lead UI (Free)

Lead UI is a Bootstrap 4 UI kit . Featuring an attractive clean design, the Lead UI features essential Bootstrap components carefully designed so you can build web pages real easily.

WrapKit Lite (Free)

WrapKit Lite is Free Bootstrap UI Kit. It allows you to create anything like complete websites, landing pages, coming soon, homepages, etc. It comes with some stunning ready to use UI Blocks & Elements to make your life even easier to use it directly for your projects.


  • Free Bootstrap 4 UI kit
  • It comes with 17+ UI blocks, 25+ UI elements, and 1 landing page
  • SaSS Base CSS
  • Google Web Fonts
  • Multi-Level Dropdown Menu
  • Search Engine Optimised Code
  • Sticky Headers
Aryo UI kit (Free)

Ayro UI is a modern bootstrap UI kit.  It also has a refreshing & trendy design. Besides, it comes with everything you need to build a complete web user-interface. Furthermore, each and every essential element offers unique variations. AyroUI specially crafted for a startup, SaaS, business, and agency-related web projects.


  • 400+ UI elements
  • 150+ amazing sections
  • 3 full-featured HTML templates
Froala Design Blocks (Free)

Froala Design blocks is a bootstrap ui kit. With an amazing Sketch library, Froala Design Blocks is a tool that helps developers and designers speak the same language. Over 170 responsive design blocks ready to be used in your web or mobile apps. All blocks are based on the Bootstrap Library, and they are the building blocks for beautiful websites.


  • Free UI kit
  • Includes a Sketch file
  • Free PSD file
  • Ready to use 170+ design block
Miri UI kit (Pro)

Miri UI Pro is a modern UI Kit designed based on the Bootstrap framework. It is rich in features and components. From buttons to checkboxes to tables to Example Pages, everything required to build powerful user interfaces can be found with Miri. It also contains well-designed Products, Testimonials, Blog posts, Register, Login, Pricing, and more page.


  • 10+ Example Pages
  • Huge collection of components
  • Excellent Documentation
  • Buttons, Tables, Alerts, and more
  • Clean, simple, and elegant design

FADE is a responsive Bootstrap 4 UI Kit built for everyone who wants to create web-apps or websites on the Bootstrap framework amazingly fast; you don’t have to be a web developer or a designer to use this UI Kit, it’s very easy to use even for newbies. Furthermore, FADE helps you to create your next Bootstrap project much faster than before. FADE comes with a simple and elegant design with a focus on content and readability. FADE UI Kit was built using SASS for easier and faster customizations.

  • More than 200 UI components
  • Fully responsive
  • Excellent Documentation
  • Different types of Buttons, Navbars, and Social Buttons.
Fabrx UI Kit Pro for Bootstrap (Premium)

Fabrx UI Kit Pro for Bootstrap 4. It is a stunning library which comes with 250+ wireframes, 500+ components, and ready-made templates. Besides, it is fully coded in HTML / CSS and built with Bootstrap 4 framework.


  • Super Clean Code
  • Fully Documented
  • 500+ Custom Components
  • 250+ Wireframes
  • Light and Dark Mode
BS4 Start – UI Kit (Premium)

BS4Start is a responsive Bootstrap 4 UI / Starter Kit built. It is useful to develop web-apps or websites on the Bootstrap framework very fast; you don’t have to be a web developer or a designer to use this Starter Kit, it’s very easy to use even for newbies. Besides, BS4Start helps you to create your next Bootstrap project much faster than before. Furthermore, BS4Start comes with a simple and elegant design with a focus on content and readability. This template was built using SASS for faster customizations.


  • Fully Responsive
  • Retina Ready
  • Font Awesome Icons
  • Material Icons
  • 6+ Starter Templates
  • 300+ UI Components
Vurox Admin Dashboard UI Kit (Premium)

Vurox is a completely handcrafted, beautiful, clean & minimal designed admin template. It has Dark, Light Layouts. Also, it’s perfect for web applications like Web analytics, Sales monitoring, Product management, CRM, CMS, Saas based interface, eCommerce, Project management apps, Admin Panels, etc. Furthermore, it’s designed so perfectly that you need too little customization for it.


  • Dark & Light Mode
  • 500+ UI Components
  • Flexible Component
  • Retina Ready
Modern Touch UI Kit
Modern Touch UI Kit

Modern touch Bootstrap UI Kit is not only it’s eye candy but using this flat UI kit will guarantee your website to be functional as well.


  • Built on Bootstrap
  • Commercial use license
  • Scalable vector graphics
  • Made for 960 Grids
  • Layered PSD files
Avalon – Mobile UI Kit (Premium)

Avalon is a mobile UI Kit for travel application that is designed major by Sketch application also available for Adobe XD. The template contains +100 screens and +40 reusable components for universal travel application or booking industry. Avalon contains common screens for an app needs when you getting started with universal booking application


  • +100 screens
  • +40 reusable components
  • Symbol library easy to use
  • Well organized layers and groups
  • Support change color schema
Summer Sale UI Kit

Summer Sale UI Kit is a clean, Flat, and chocolaty color Bootstrap Template Plain and minimal UI kit that includes lots of user interface elements for web applications and widgets like calendar, Menus, Video player, charts, maps, etc.


  • Available in both Free and Premium versions
  • It comes with High Resolution
  • Compatible Browsers: Google Chrome, Firefox, Safari, IE 10, Opera, etc
  • It supports Fluid Responsive Layout
  • It includes 4 plugins i,e. Slider, Calendar, Player, and Range Selector

Well, it’s always preferable to choose a ready-made UI kit to design an application, as you don’t need to start your designing work from scratch. Not only this but going for a ready-made UI kit will always reward you as it has many reach benefits.

This collection of bootstrap UI kit contains various free and premium UI kits with amazing features and components.

To craft this collection, we have gone through various UI kits available out there and analyzed which one works best as per the latest trend. After considering certain parameters like performance, usability, compatibility, responsiveness, rich components, and elements, etc, the items jotted down in this collection.

Each UI Kit is enriched with useful components. Although, you must check Frest UI Kit and Material UI kit for your upcoming project.

If you are looking for a UI kit that works best as per the latest trend then this collection will definitely help you with the best alternatives out there to try.

Feedbacks will be highly appreciated. Comment below if you have any suggestions or feedback.

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