Front end

What the front end is

The front end, also called the client side, is everything of a website or application that runs in the user's browser and that a visitor actually sees and touches. It covers the layout, typography, colours, images, buttons, forms, menus and animations, and the way the interface responds when someone clicks, scrolls or types. If a person can see it or interact with it directly, it belongs to the front end.

The core technologies

The front end rests on three languages. HTML provides the structure and content of a page: headings, paragraphs, links, images. CSS controls presentation: layout, spacing, colours, fonts and responsive behaviour across screen sizes. JavaScript adds interactivity and logic in the browser: menus that open, forms that validate, content that updates without a full page reload. On top of these sit frameworks and libraries such as React or Vue for complex apps, while tools like Webflow and Framer let teams produce clean front-end code visually.

Front end versus back end

A website has two sides. The front end is what runs in the browser and what the user experiences. The back end is what runs on the server: databases, business logic, authentication and APIs the visitor never sees directly. A useful image is a restaurant: the front end is the dining room, the menu and the presentation, while the back end is the kitchen. The two communicate, often through APIs, so the visible interface can show and save real data.

What front-end quality affects

The front end carries most of what users judge a site on. It determines whether pages load fast, feel smooth and work on every device, all of which affect conversion. It shapes accessibility, deciding whether people using keyboards or screen readers can use the site. And it strongly influences SEO, because performance, mobile-friendliness and clean markup are ranking and page-experience signals. A beautiful design fails if the front-end build is slow, broken on mobile or inaccessible.

Common mistakes

Frequent problems include heavy pages with oversized images and scripts that slow loading, layouts that break at some screen sizes because responsiveness was an afterthought, ignoring accessibility, and cluttered markup that hurts both performance and SEO. Over-engineering a simple site with a heavy JavaScript framework it does not need is another common trap.

Front-end work at BeBranded

The front end is where our website and design work becomes real for visitors. We build fast, responsive, accessible interfaces in Webflow, Framer and custom stacks, with clean structure and performance in mind, not just visuals. Because we treat design and front-end build as one continuous effort, the experience we design survives into the final product: quick to load, smooth to use and consistent on every device, which protects both conversion and search performance.