What Should a Web Developer Know in 2025?

The web development industry evolves fast — and 2025 is no exception. With the rise of headless CMSs, AI-assisted coding, and stronger focus on performance and accessibility, the expectations from developers keep growing.

Whether you’re just starting out or hiring a new team member, it’s important to understand what a web developer should know today.

In this article, we break down the key skills, tools, and technologies every modern developer should be familiar with in 2025.

What Should a Web Developer Know in 2025?

A modern web developer is expected to do more than just write clean HTML and CSS. In 2025, they need to think in components, optimize for performance, and understand the full stack — or at least how it all connects.

Here are the things every web developer should know this year:

• HTML5, CSS3, and JavaScript (ES6+) – still the foundation
• Version control (Git/GitHub) – a must for team collaboration
• Responsive & accessible design – mobile-first and WCAG 2.2 standards
• Performance basics – Core Web Vitals, image optimization, lazy loading
• Basic SEO structure – understanding semantic markup and metadata
• AI-assisted development – prompt writing, code generation, and tool integration

Frontend Technologies to Know

Frontend has become much more dynamic and component-based. If you ask what should I know for web development in 2025 — this is a good place to start.

Also useful: working knowledge of Figma, GSAP, Framer Motion.

Backend Stack & DevOps Basics

Even if you’re a frontend dev, understanding the backend helps collaboration and debugging. Here’s what a junior web developer should know about the server side:

• Node.js + Express – fast, JavaScript-friendly APIs
• REST & GraphQL – how APIs are structured
• MyQL or MongoDB – database fundamentals
• Basic security (HTTPS, auth, validation)
• Understanding CI/CD workflows (GitHub Actions, Vercel)

You don’t need to master DevOps — but knowing what to know to become a web developer in a team setting means understanding the full workflow.

Tools & Soft Skills

Technical skills are just one piece. When we hire at Deveit, we also look at:

• Clear communication (especially async)
• Experience with task managers (Jira, Trello, Linear)
• GitHub commit habits & documentation
• Curiosity and ability to learn quickly
• Team collaboration and code reviews

Knowing what to know to be a web developer also means being a good teammate.

Tips for Junior Developers

Still wondering what should a junior web developer know to get hired in 2025?

• Focus on 1–2 real projects (not just tutorials)
• Learn Git and GitHub first — then React
• Deploy something: Vercel, Netlify, or your own VPS
• Ask questions, document your work, and be consistent
• Don’t wait for “perfect” — ship, learn, repeat

At Deveit

At Deveit, we work with web developers every day — from frontend engineers to full-stack product teams. Whether you’re hiring devs or building your own skills, it helps to know what’s essential in today’s tech stack.

Looking for a tech team that knows modern tools, clean code, and how to ship fast?

Let’s talk →

Final Thoughts

Still asking what should I know to become a web developer in 2025?

Here’s the cheat sheet:

• HTML, CSS, JavaScript
• Git & GitHub
• React & Tailwind
• Component-based thinking
• Performance optimization
• Team tools (Jira, CI/CD)
• Communication & documentation

Web development is no longer just “making pages” — it’s about building fast, secure, scalable experiences. And the more you understand, the more valuable you are — to your team, your clients, or your own future startup.