What is JavaScript Framework?

JavaScript is the programming language that runs in web browsers. A framework is a set of ready-made building blocks and rules on top of it, so developers do not start from scratch. React, Vue and Angular are well-known examples. Next.js builds on React.

Frameworks matter to owners because they affect speed, flexibility and long-term cost. A modern framework can make pages feel instant, support complex features like dashboards and logins, and make a site easier to update later. The wrong choice can make changes slow and expensive.

You do not need to pick one yourself. What matters is that your site is built on a mainstream, well-supported tool, so you are never locked to one developer. We choose frameworks based on your goals and use Next.js for many custom builds.