Bootstrap vs. Tachyons

ImageBy SW Habitation
Bootstrap

Bootstrap

vs
Tachyons

Tachyons

You know how building a website can feel like a lot, especially when you’re trying to style every little thing yourself? Buttons, forms, layouts… it adds up fast. That’s where UI frameworks really save the day. They give you a bunch of premade design elements that you can just drop in and go. It’s like having a design starter pack that helps your site look clean and professional, without spending forever tweaking the details.

What is Bootstrap ?

Bootstrap is the most popular CSS Framework for developing responsive and mobile-first websites. Do you know it was originally developed by Twitter now X and is now maintained by a large community of developers. Bootstrap provides a collection of pre-designed HTML, CSS, and JavaScript components that can be used to build websites quickly and easily.

Key Features of Bootstrap

Bootstrap
  • Responsive Grid: 12-column Flexbox grid with multiple breakpoints.
  • Prebuilt Components: Includes modals, tooltips, carousels, navbars, etc.
  • JavaScript Plugins: Native JS components — no jQuery dependency now.
  • Sass Source: Source code in Sass for easy customization.
  • Utility Classes: Tons of helper classes for spacing, colors, displays.
  • Theming Support: Customizable via Sass variables.

Advantages of Bootstrap

  • Fast Setup: Quickly spin up pages with minimal styling needed.
  • Consistency Across Browsers: Ensures uniform UI elements.
  • Large Ecosystem: Thousands of themes, templates, starters available
  • Modular: Easily import only needed components via Sass.
  • Strong Community: Longstanding support and wide adoption.

Disadvantages of Bootstrap

  • Learning Curve: Advanced customization requires more expertise
  • Overuse of Classes: Cluttered HTML, harder to maintain.
  • Heavy File Size: Includes unnecessary CSS/JS, increasing load times.
  • Limited Customization: Hard to deeply customize without overriding defaults.
  • Uniform Design: Sites can look similar unless customized heavily.

What isTachyons?

Tachyons is a functional/atomic CSS framework that uses small, reusable utility classes. Instead of big UI components or deeply nested CSS, Tachyons encourages developers to style elements using many tiny, single-purpose classes.

Let's check by the example,

Copy Code
1 2 3 <button class="f6 link dim br3 ph3 pv2 mb2 dib white bg-dark-blue"> Click Me! </button>

Here, each class f6, br3, ph3 controls a specific CSS property like font size, border radius, padding, etc. This modular approach makes styling predictable and reusable.

Tachyons was one of the innovator of the utility-first CSS movement—it influenced modern frameworks like Tailwind.

Key Features of Tachyons

Tachyons
  • Atomic CSS Classes: Every class does one thing (e.g., pa3 = padding).
  • Responsive Utilities: Classes adapt to multiple screen sizes.
  • Small Bundle Size: Around 14KB minified & gzipped.
  • Performance-Oriented: Encourages minimal CSS output.
  • Accessible Defaults: Typography and spacing built for readability.
  • Framework-Free: Works with plain HTML, React, Vue, or any frontend.
  • Rapid Prototyping: Compose UIs quickly with utility classes.

Advantages of Tachyons

  • Stable: Mature and widely battle-tested since 2015.
  • Highly Composable: Mix classes freely to achieve complex designs.
  • Consistent: Predictable, reusable naming system.
  • Fast & Lightweight: Tiny CSS footprint.
  • Great for Prototypes: Quickly test ideas without writing custom CSS.
  • Utility-First Approach: No deep CSS overrides needed.

Disadvantages of Tachyons

  • Smaller Community: Fewer themes, templates, and ecosystem resources.
  • Messy HTML: Can lead to class-heavy markup that’s harder to read.
  • No Components: You must build everything (buttons, navbars, modals) manually.
  • Learning Curve: Class names (pa3, f5) are shorthand and non-intuitive for beginners.
  • Not Actively Maintained: Less frequent updates compared to newer frameworks.

Comparison Between Bootstrap vs Tachyons

FeaturesBootstrapTachyons
PhilosophyPre-styled components for fast UI developmentFunctional CSS with small, single-purpose classes
Ease of UseVery beginner-friendlyVery easy, just apply atomic classes
CustomizationLimited; via Sass variablesLimited customization; mainly extend via custom CSS
Design SystemBasic design consistencyPredefined design scale (spacing, typography, colors)
ResponsivenessBuilt-in responsive gridBuilt-in responsive classes (mobile-first)
File SizeMedium to large without customizationVery small (~14KB minified)
Learning CurveLowVery low (intuitive class names)
PricingFree and open-sourceFree & open-source
Best ForQuick UIs, admin dashboards, MVPsLightweight, fast prototyping & production
Styling MethodSass, plain CSSAtomic utility classes directly in HTML
AccessibilityBasic, not WCAG-firstNo built-in a11y, but encourages semantic HTML
Dark ModeManual implementationNo native dark mode, requires custom setup
FrameworkAny (HTML/CSS/JS)Any (pure CSS, framework-agnostic)
Bundle SizeLarge if all components usedTiny (14KB gzipped)

Use Cases of Bootstrap

  • Projects where consistency outweighs custom design
  • Legacy apps or CMS integration
  • Quick MVPs and prototypes
  • Dashboard templates, admin panels

Use Cases of Tachyons

  • Rapid prototyping and MVPs.
  • Building custom UIs without depending on pre-styled components.
  • Designers who want total control over design instead of prebuilt themes.
  • Developers who like atomic/functional CSS.
  • Lightweight projects where performance is critical.

Conclusion

UI frameworks make building a polished website way easier. Whether you're working on something simple or a big project, they help you get things looking just right without having to stress over every little design decision. With ready-to-use components, responsive layouts, and modern styles, you can build faster and smarter.

So, pick one that works for you, and start creating a site that looks amazing from the get-go.

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Frequently asked questions

Can I use Bootstrap without JavaScript libraries?

Is Bootstrap responsive?

Do I need to know HTML, CSS, and JavaScript to use Bootstrap?

How does Bootstrap help with mobile responsiveness?

How do I start using Tachyons?

What makes Tachyons different?

How big is Tachyons?

Can I customize Tachyons?

Is Tachyons enough for UI development?