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Bootstrap vs Sass: What are the differences?

Bootstrap: Simple and flexible HTML, CSS, and JS for popular UI components and interactions. Bootstrap is the most popular HTML, CSS, and JS framework for developing responsive, mobile first projects on the web; Sass: Syntactically Awesome Style Sheets. Sass is an extension of CSS3, adding nested rules, variables, mixins, selector inheritance, and more. It's translated to well-formatted, standard CSS using the command line tool or a web-framework plugin.

Bootstrap can be classified as a tool in the "Front-End Frameworks" category, while Sass is grouped under "CSS Pre-processors / Extensions".

"Responsiveness", "UI components" and "Consistent" are the key factors why developers consider Bootstrap; whereas "Variables", "Mixins" and "Nested rules" are the primary reasons why Sass is favored.

Bootstrap and Sass are both open source tools. Bootstrap with 134K GitHub stars and 66K forks on GitHub appears to be more popular than Sass with 12K GitHub stars and 1.93K GitHub forks.

Spotify, Twitter, and Lyft are some of the popular companies that use Bootstrap, whereas Sass is used by Airbnb, StackShare, and Asana. Bootstrap has a broader approval, being mentioned in 7044 company stacks & 1115 developers stacks; compared to Sass, which is listed in 2101 company stacks and 1485 developer stacks.

Advice on Bootstrap and Sass
Needs advice
on
Tailwind CSSTailwind CSS
and
BootstrapBootstrap

I am planning to redesign my entire application, which is currently in Bootstrap. I heard about Tailwind CSS, and I think its really cool to work with. Is it okay if I use Bootstrap and Tailwind together? I can't remove Bootstrap altogether, as my application is using the js dependencies of Bootstrap, which I don't want to disturb.

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Replies (3)
Ivo Pereira

Factually talking about systems, we gotta make two bold headlines about each one: Bootstrap has been around for a while, has a vast community and much probably will not be gone in a while. Tailwind in the other hand, is the trendy framework starting from the past year. Referring to UI, I really prefer Tailwind, however I can't ignore the fact that a lot of libraries that emerged felt short in the end after a few years (a point where Bootstrap kept his status).

You are able to use both them together but I advise you — it will be a mess. And you gotta hope that you won't have any kind of conflicts between class naming and other general styling.

My recommendation would be to use one and only one. Perhaps rebuild the UI with a specific framework in mind, otherwise you will start to workaround things of both frameworks to contradict each other - and your team (if you work with one) will hate you.

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Arslan Ameer
at Synares Systems Pvt Ltd · | 5 upvotes · 301.6K views
Recommends
BootstrapBootstrap

You might have heard about bootstrap 5. Bootstrap is now totally jQuery free. i have tried foundation and bulma too. but eventually fall again for bootstrap, as it is most convenient and stable. i use bootstrap with less or sass.

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Barry Hylton
Recommends
BootstrapBootstrap

I use both of these regularly. If you're going to have to use Bootstrap due to your js dependencies, stick with Bootstrap. I actually prefer Tailwind, but trying to use both of them and make them "play nice" feels like making things more complex with no real benefit.

EDIT: Sorry for the late response, I just noticed how old this is. StackShare sent me this in an email for some reason so I assumed it was relatively fresh.

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awesomebanana2018
Needs advice
on
StylusStylusSassSass
and
PostCSSPostCSS

Originally, I was going to start using Sass with Parcel, but then I learned about Stylus, which looked interesting because it can get the property values of something directly instead of through variables, and PostCSS, which looked interesting because you can customize your Pre/Post-processing. Which tool would you recommend?

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Replies (1)
Recommends
PostCSSPostCSS

You're not correct with saying "vs Postcss". You're using Less/Sass/Stylus/... to produce "CSS" (maybe extended means it has some future features) and then in any case PostCSS will play (it is shipped with Parcel/NextJS/CRA/...)

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Daniel Hernández Alcojor
Frontend Developer at atSistemas · | 8 upvotes · 442.1K views
Needs advice
on
UIkItUIkItBulmaBulma
and
BootstrapBootstrap

I'm building, from scratch, a webapp. It's going to be a dashboard to check on our apps in New Relic and update the Apdex from the webapp. I have just chosen Next.js as our framework because we use React already, and after going through the tutorial, I just loved the latest changes they have implemented.

But we have to decide on a CSS framework for the UI. I'm partial to Bulma because I love that it's all about CSS (and you can use SCSS from the start), that it's rather lightweight and that it doesn't come with JavaScript clutter. One of the things I hate about Bootstrap is that you depend on jQuery to use the JavaScript part. My boss loves UIkIt, but when I've used it in the past, I didn't like it.

What do you think we should use? Maybe you have another suggestion?

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Replies (6)
Recommends
UIkItUIkIt

I have used bulma in several projects. We could not customize with the websites very well. Also when we need "quick solutions" Bulma is not suitable (I mean basic animations, to-top buttons, transparent navbar solutions etc. For these solutions, you need extra js codes).

Everybody knows about Bootstrap (heavy but popular).

Now we start a new project with UI kit, I like it. Pros: It is fast and lightweight and imho it has very good UI. Cons: Small community. Documentation.

Check this link for kick-off. https://github.com/zzseba78/Kick-Off

Maybe it is helpful.

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Damien Lucchese
Recommends
BulmaBulma

Been checking out Bulma, myself, and really dig it. I like that it's a great base level jumping off point. You can get a layout going with it, pretty quickly, and then customize as you want. It definitely sounds like it's the one you're leaning towards but a big factor would be who will be using it most? Your boss, yourself, others? Whichever you like best, you'll prob be most productive with but if in the end your boss says it has to be UIkit, then best to be open-minded and give it another shot. Sometimes you may not jive with new tools in your stack, at first, but then they can become tools you learn to love. Best to you in your decision! Take care & keep safe.

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Recommends
DiezDiez

I've moved away from the concept of UI kits. Not that many support CSS grid. A lot of the icons are easier to use in SVG. I've had success in the concept of design framework and design tokens. I build my brand identity in Figma, and extract in Diez. Then Diez integrates into React and SASS. Much easier because design is decoupled from software in a central authority, and software updates automatically from design changes.

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Recommends
BulmaBulma

Honestly - pick whatever you are the most comfortable with. You can achieve almost the same effects with different tools, so why not use something I like using?

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Tomer Fishaimer
Frontend Architect at Aqua Security · | 2 upvotes · 284.8K views
Recommends
Tailwind CSSTailwind CSS

Actually it really depends on your needs, there are 3 types of UI frameworks you can use:

  1. A complete set of UI components like: https://react-bulma.dev/en/getting-started.

    Pros:

    Having a lot of pre-built UI components saves a lot of time

    Cons:

    need to learn the react framework and the bulma styles, and it's harder to customize to your needs

  2. A pure css framework, like Bulma, where you write all the components yourself.

    Pros:

    A lot of flexibility to build the components you need

    Cons:

    You are bound to Bulma classes and markup.

    Takes more time since you need to build the components

  3. A utility class framework like: https://tailwindcss.com/.

Pros:

Most flexible, mix and match classes as you like and build your own markup

Very easy to customize to your needs

Cons:

Might take time to get used to and takes more time since you need to build the components

If you choose options one, then it's just a matter of deciding what style you like (material,ant, bulma) and go with the library that implements it If you go with pure css and build your own components, I can't recommend tailwind enough, I've been finding myself building entire pages without writing a single line of css.

And if later on, the designer wants to make a change to some color, or size, I just need to change one value in the config file, and the entire app is updated.

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Needs advice
on
UIkItUIkItTailwind CSSTailwind CSS
and
BootstrapBootstrap

We are re-modifying the existing portal to the new one. Looking out for a CSS framework where over-rides are possible, the performance of page loading, extendable, etc Please suggest between tailwind, UIkit and bootstrap frameworks explaining in detail on different factors. I request your help on the same.

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Replies (2)
Brett Stevenson
Recommends
BootstrapBootstrap

I'm a big proponent of Tailwind and I personally use it whenever I get the chance, mostly because it's not really a UI-kit, but it sounds like in this case a UI-kit like Bootstrap with pre-defined components is more what you are looking for. Bootstrap is (relatively) extendable and overridable and makes it really simple to make a decent looking UI using a handful of pre-defined classes, whereas with Tailwind you configure the classes and create your own components. My main reason for replacing Bootstrap in my workflow is that it feels like the component creation has become so abstracted from the developer that any meaningful customization becomes a chore, resulting in many websites having the generic "Bootstrap-look". Nonetheless, it is effective for creating a pleasant and responsive UI. Though, I don't have any experience with UIkit.

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Collins Ogbuzuru
Front-end dev at Evolve credit · | 0 upvotes · 259.4K views
Recommends
Tailwind CSSTailwind CSS

Hey Sai, My thoughts on UIkit - It's beautiful, it's fast and it has good animation too. Why would I choose it ? Nothing other than giving the internet a new look .

My thoughts on Bootstrap - it's beautiful, if used well. It's very fast and has clean class naming convention unlike Uikit.

Why I would choose it ? It's been tested and trusted, I can find a whole lot of resources and a community around it. Also with the type of project you working on I bet Bootstrap would do the job .

My thoughts on tailwind - classic, difficult to set up and clean utilities. I wouldn't think of tailwind the way I would to Bootstrap or UIkit. What do I mean ? Tailwind is more like a tool set to create your own design flow rather than giving you a pre-designed button it gives you the ability to design yours.

My final thoughts.

If you have the time , setup and use tailwind it will give you a great chance when it comes to extending and performance.

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Decisions about Bootstrap and Sass
Bridget Sarah
Full Stack Developer at Bridget Sarah · | 10 upvotes · 352.6K views

I do prefer to write things from scratch however when it came to wanting to jump-start the frontend, I found that it was taking me a lot longer hence why needing to use something very fast.

Bootstrap was the boom when it came out, I didn't like it, to be honest, set in its way and a pain to over-ride and in addition, you can tell from a distance if you're using boostrap and as everything looks the same.

I came across Tailwind CSS as I wanted more dynamic features, you could say, I've been now doing it for a few days and I love it a lot. I've been practising with the full stack part installed but I an't we wait until I do a new project, and I'll e able to select exactly what I want. Much faster.

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Fonts and typography are fun. Material Design is a framework (developed by Google) that basically geeks out on how to assemble your typographical elements together into a design language. If you're into fonts and typography, it's fantastic. It provides a theming engine, reusable components, and can pull different user interfaces together under a common design paradigm. I'd highly recommend looking into Borries Schwesinger's book "The Form Book" if you're going to be working with Material UI or are otherwise new to component design.

https://www.amazon.com/Form-Book-Creating-Printed-Online/dp/0500515085

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Pros of Bootstrap
Pros of Sass
  • 1.6K
    Responsiveness
  • 1.2K
    UI components
  • 943
    Consistent
  • 778
    Great docs
  • 677
    Flexible
  • 466
    HTML, CSS, and JS framework
  • 411
    Open source
  • 375
    Widely used
  • 368
    Customizable
  • 241
    HTML framework
  • 76
    Popular
  • 76
    Easy setup
  • 75
    Mobile first
  • 56
    Great grid system
  • 50
    Great community
  • 38
    Future compatibility
  • 34
    Integration
  • 28
    Very powerful foundational front-end framework
  • 24
    Standard
  • 23
    Javascript plugins
  • 19
    Build faster prototypes
  • 18
    Preprocessors
  • 14
    Grids
  • 8
    Clean
  • 7
    Good for a person who hates CSS
  • 4
    Easy to setup and learn
  • 4
    Rapid development
  • 4
    Love it
  • 3
    Great and easy to use
  • 2
    Great and easy
  • 2
    Provide angular wrapper
  • 2
    Community
  • 2
    Powerful grid system, Rapid development, Customization
  • 2
    Popularity
  • 2
    Great customer support
  • 2
    Clean and quick frontend development
  • 2
    Easy to use
  • 2
    Great and easy to make a responsive website
  • 2
    Sprzedam opla
  • 1
    Material-ui
  • 1
    Geo
  • 1
    It's fast
  • 1
    Boostrap
  • 1
    Pre-Defined components
  • 1
    Not tied to jQuery
  • 1
    Responsive design
  • 1
    Design Agnostic
  • 1
    Recognizable
  • 1
    Intuitive
  • 1
    Love the classes?
  • 1
    Reactjs
  • 1
    Felxible, comfortable, user-friendly
  • 1
    The fame
  • 1
    Easy setup2
  • 1
    Painless front end development
  • 1
    So clean and simple
  • 1
    Numerous components
  • 0
    Frefsd
  • 608
    Variables
  • 593
    Mixins
  • 467
    Nested rules
  • 411
    Maintainable
  • 299
    Functions
  • 150
    Modular flexible code
  • 141
    Open source
  • 112
    Selector inheritance
  • 107
    Dynamic
  • 96
    Better than cs
  • 4
    Used by Bootstrap
  • 2
    If and for function
  • 1
    Better than less
  • 1
    Inheritance (@extend)
  • 1
    Custom functions

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Cons of Bootstrap
Cons of Sass
  • 25
    Javascript is tied to jquery
  • 16
    Every site uses the defaults
  • 15
    Grid system break points aren't ideal
  • 14
    Too much heavy decoration in default look
  • 8
    Verbose styles
  • 1
    Super heavy
  • 1
    Needs to be compiled

Sign up to add or upvote consMake informed product decisions

What is Bootstrap?

Bootstrap is the most popular HTML, CSS, and JS framework for developing responsive, mobile first projects on the web.

What is Sass?

Sass is an extension of CSS3, adding nested rules, variables, mixins, selector inheritance, and more. It's translated to well-formatted, standard CSS using the command line tool or a web-framework plugin.

Need advice about which tool to choose?Ask the StackShare community!

What companies use Bootstrap?
What companies use Sass?
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What tools integrate with Sass?

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What are some alternatives to Bootstrap and Sass?
Semantic UI
Semantic empowers designers and developers by creating a shared vocabulary for UI.
jQuery
jQuery is a cross-platform JavaScript library designed to simplify the client-side scripting of HTML.
Material
Express your creativity with Material, an animation and graphics framework for Google's Material Design and Apple's Flat UI in Swift.
React
Lots of people use React as the V in MVC. Since React makes no assumptions about the rest of your technology stack, it's easy to try it out on a small feature in an existing project.
Foundation
Foundation is the most advanced responsive front-end framework in the world. You can quickly prototype and build sites or apps that work on any kind of device with Foundation, which includes layout constructs (like a fully responsive grid), elements and best practices.
See all alternatives