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Kudzai Murimi
Kudzai Murimi

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Web Components in 2025: Building Better Websites for Everyone

Few days left to go to 2025, where web components are changing how we build and enjoy websites. These handy tools make creating websites easier, faster, and more fun—whether you're a tech wizard or just someone who loves smooth online experiences.

Let’s dive into what web components are, why they’re so cool, and how they’re making life easier for everyone online.

What Are Web Components?

Imagine building websites like playing with LEGO. You can create big, awesome structures using small, reusable blocks. Web components are like those LEGO blocks for the web. They’re tiny, reusable pieces like buttons, forms, or menus—that you can use again and again on any website.

For example:

Say you need a shiny blue “Buy Now” button. Build it once as a web component, and now you can add it to your blog, online shop, or any website you create!

Here’s what it looks like in action:

<buy-now-button></buy-now-button>
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Why Are Web Components So Cool?

1. They Work Everywhere

Think of web components like universal chargers—they just work. Whether your website is built with React, Vue, or plain old HTML, web components fit right in without any fuss.

2. Save Time for Teams

Let’s say one team uses React and another uses Angular. Normally, each team would build the same thing twice. With web components, you create it once, and both teams can share it. Less work, more awesome!

3. Keep Things Consistent

Big companies like Google and Microsoft love web components because they ensure everything on their websites looks and works the same. For example, a "Sign Up" button will look identical on every page or product because it’s the same web component.

How Do Web Components Work?

Web components are powered by three magical tools:

  1. Custom Elements

    You can create your own HTML tags, like <buy-now-button> or <user-profile>.

  2. Shadow DOM

    Keeps your component’s code private so it doesn’t mess with the rest of the site.

  3. HTML Templates

    Helps you design what your component looks like.

Example: Building a Button

Here’s how you’d make a shiny “Buy Now” button:

class BuyNowButton extends HTMLElement {
  constructor() {
    super();
    const shadow = this.attachShadow({ mode: 'open' });
    shadow.innerHTML = `
      <style>
        button {
          background-color: blue;
          color: white;
          padding: 10px;
          border: none;
          border-radius: 5px;
          cursor: pointer;
        }
      </style>
      <button>Buy Now</button>
    `;
  }
}

customElements.define('buy-now-button', BuyNowButton);
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Now you can use <buy-now-button> on any page, and it’ll always look awesome!

Where Are Web Components Used?

1. For Consistent Design

Companies use web components to make sure their buttons, forms, and menus look the same everywhere. For example, the same "Add to Cart" button might show up on their desktop site, mobile app, or even email campaigns.

2. For Big Projects

In big teams, different people work on different parts of a website. Web components let everyone build their section separately, but it all works together perfectly in the end.

Smarter Web Components

Web components don’t just look good—they can handle data and user interactions too!

Example: Updating a User’s Name

Let’s say you’re building a user profile card. It can update whenever someone changes their name:

class UserProfile extends HTMLElement {
  static get observedAttributes() {
    return ['name'];
  }

  attributeChangedCallback(name, oldValue, newValue) {
    this.innerHTML = `<p>Hello, ${newValue}!</p>`;
  }
}

customElements.define('user-profile', UserProfile);
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Here’s how you’d use it:

<user-profile name="Alice"></user-profile>
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Change the name, and the profile updates instantly!


Why Are Web Components Fast?

Web components are lightning-fast because they’re built into the browser. Unlike other tools, they don’t rely on bulky libraries. This means websites load quicker, which makes everyone happy!

Tools to Make Web Components Easier

Creating web components is getting simpler thanks to these handy tools:

  • Lit: A library that makes building components a breeze.
  • Storybook: Lets you see how your components look and behave in real-time.
  • Testing Tools: Ensure your components work flawlessly.

What’s Next for Web Components?

The future is bright! Here’s what’s coming:

  1. Better TypeScript Support

    This will help developers catch mistakes faster.

  2. Faster Server Rendering

    Makes websites load even quicker.

  3. Improved Developer Tools

    Debugging and testing will get much easier.

Web components aren’t just for techies, they’re for anyone who loves better, faster websites. They make the internet smoother, more consistent, and easier to build.

Next time you click a button or fill out a form online, think about this: It might just be a web component making everything work perfectly!

Here are some great resources to explore:

Enjoy building (or just enjoying) better websites with web components! 😊
I am always happy to receive more links and and sources for more info. We are always together in this journey. If you try something new today and it does not make sense, 🤯. Do not quit, it's normal try it again until it makes 💪!

Top comments (18)

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dannyengelman profile image
Danny Engelman

or chain those statements:

constructor() {
    super() // sets AND returns 'this' scope
       .attachShadow({ mode: 'open' }) // sets AND returns this.shadowRoot
       .innnerHTML = `YOUR HTML HERE`
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respect17 profile image
Kudzai Murimi
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macko profile image
Michael Nuertey

hello, how do you come about this snippet?

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dannyengelman profile image
Danny Engelman

Read The Fine Manual

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martygo profile image
Martins Gouveia

Your post is a gem 💎. Thanks for sharing. Bring more about Web Components if possible.

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respect17 profile image
Kudzai Murimi

Thank you so much, i promise you that i will!

Thanks for your support

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lucacestola profile image
Luca Cestola

... and they are standard. I remember Rob Eisenberg's foresight when, speaking for Aurelia, he noted that there was no need to invent the wheel again as so many other frameworks did.

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respect17 profile image
Kudzai Murimi

You're welcome

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wafa_bergaoui profile image
Wafa Bergaoui

The LEGO analogy is brilliant—it makes understanding web components approachable and fun! I particularly appreciate the clear examples that demonstrate how to create and use custom elements. Well done! 🎉

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respect17 profile image
Kudzai Murimi

i am happy that you found the article helpful

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uzondu9 profile image
Uzondu
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uzondu9 profile image
Uzondu

My current skills are in HTML, CSS, Sass, JavaScript, TypeScript(the basics) and Git(basic and intermediate concepts too). However I am still creating projects and building my portfolio. I have decided to avoid freelancing until I am really good, though when I was still starting out, I registered on Upwork out of excitement and have been offline since. But with every project I work on I become better and my most recent project:

has me so confident I now feel I should start freelancing but utilizing my first frontend skill which is HTML and using it to create email templates
Image
and I believe earning while learning will help to keep to me motivated
and transition slowly to selling more of my skills. Sorry if my comment is so long but the post seems to have something on this my new venture. I would like some advice on this and what it would take to learn it if would go this way.
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georgewl profile image
George WL

Honestly I really like the idea of web-components but feel like they're missing core features that libraries have as default

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deeee5 profile image
Dadirai Ngandu

Hi I am a fresh upstart who has no clue on webdevelopment and coding which software would you recommend I use and how I will also save them on github

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respect17 profile image
Kudzai Murimi

Hello @deeee5 !

Ok, worry not i am here to help you
First:
Do you have exprience with HTML, CSS and Javascript or did you read above them?
If you have not yet, you can learn about them for free in
freecodecamp.org/learn/?messages=s...

These are the basics to start with.

Have you ever used Codepen? codepen.io/
Have you ever used VS Code code.visualstudio.com/

CodePen and VS Code are used for code editing, as for now that's where you can practise coding

Let me know if you have enough info with the above then we can proceed.

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denis-mgaya profile image
Denis Mgaya

This is so cool

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