Roadmap: How to Become a Front-End Developer in 90 Days

Discover a step-by-step 90‑day roadmap to become a front‑end developer, mastering HTML, CSS, JavaScript, modern frameworks and tools through hands‑on projects.

TECH CAREER PLAYBOOKS

By OnlineTechSkills Editorial Team

4/18/20254 min read

Introduction

In today’s digital economy, the ability to craft engaging, responsive, and performant web interfaces can open doors to countless career opportunities. Front-end developers bridge the gap between design and user experience they turn visual mockups into interactive realities. If you’ve ever wondered whether you could go from zero coding experience to landing your first front-end role in just three months, this guide is for you. By following a disciplined, day-by-day roadmap, you’ll build the skills, portfolio, and confidence necessary to break into tech no degree required.

1. Lay Your Foundation (Days 1–15)

HTML Semantics and CSS Fundamentals

Start by mastering the building blocks of the web: HTML for structure and CSS for styling. Focus on semantic tags like <header>, <nav>, <article>, and <footer> to ensure accessibility and SEO. With CSS, learn the box model, selectors, flexbox, and grid. A solid grasp of these basics sets you up for everything that follows.

Development Environment Setup

Install Visual Studio Code, configure essential extensions (Prettier, ESLint), and set up Git for version control. Familiarize yourself with Chrome DevTools for debugging and performance audits. By Day 15, you should be comfortable creating commits, branching, and resolving merge conflicts.

Next Steps:

  • Enroll in one of the best online platforms to learn practical tech skills in 2025

  • Read how to break into tech without a degree or tech background for motivational tips

2. Master JavaScript Basics (Days 16–30)

Core Concepts

Dive into JavaScript fundamentals: variables, data types, functions, loops, and conditionals. Understand how to manipulate the Document Object Model (DOM) to create dynamic behaviors. Practice writing clean, reusable code by breaking tasks into functions and modules.

Practice Exercises

Build a simple to-do list, a modal popup, and an image carousel. These micro-projects reinforce event handling and DOM updates.

Example 1: Dynamic Quiz Widget On Day 25, create a five-question quiz that displays one question at a time, tracks the score, and shows a final result. This exercise teaches:

  • Event listeners for button clicks

  • Updating the DOM to show/hide elements

  • Storing state in JavaScript objects

Next Steps:

3. Dive into Modern Frameworks (Days 31–60)

Choosing a Framework: React vs. Vue.js

Both React and Vue.js dominate the front-end landscape. React boasts a massive ecosystem and industry adoption, while Vue.js offers gentle learning curves and clear documentation. Choose one to focus on most of the concepts carry over between frameworks.

Core Framework Concepts

  • Components: Encapsulate UI and behavior

  • State and Props: Manage data flow

  • Lifecycle Methods / Hooks: Control side effects and data fetching

Example 2: Vue.js Dashboard for a Local Coffee Shop This project simulates a dashboard displaying daily sales, inventory levels, and customer feedback. You’ll implement:

  • A line chart showing sales trends using Chart.js integrated into Vue components

  • Reactive filters for date ranges and categories

  • A feedback form that submits to a mock API endpoint

By the end, you’ll understand how to structure larger apps, manage component state, and fetch external data.

Next Steps:

  • Follow our deep dive on how to build a responsive single-page application with React

  • Explore how to create dynamic dashboards with Vue.js and Chart.js for more examples

4. Build Real-World Projects (Days 61–80)

Project Ideas and Planning

Your portfolio should showcase at least three polished projects. Consider:

  • Personal Portfolio Site: A responsive showcase of your skills and projects

  • E-commerce Front End: Product listing, shopping cart, checkout flow

  • Data Visualization App: Use D3.js or Chart.js for interactive charts

Case Study 1: Interactive Recipe Finder 

Concept: A web app that lets users search recipes by ingredients, dietary restrictions, and cooking time. Tech Stack: React, Node.js mock API, Tailwind CSS Highlights:

  • Debounced search to minimize API calls

  • Client-side routing with React Router

  • LocalStorage for saving favorite recipes

Case Study 2: Real-Time Chat Interface 

Concept: A customer support chat widget embedded in a static website. Tech Stack: Vue.js, Firebase Realtime Database, Vuetify Highlights:

  • Two-way data binding for live message updates

  • Authentication with Firebase Auth (email/password)

  • Responsive design for mobile and desktop

Next Steps:

5. Portfolio, Networking, and Job Hunt (Days 81–90)

Portfolio Polish

Ensure your portfolio is responsive, accessible, and SEO-friendly. Host it on GitHub Pages or Netlify. Write concise case studies for each project, highlighting technical challenges and solutions.

Resume and LinkedIn

Tailor your resume for front-end roles, emphasizing projects and tangible results (e.g., "Improved page load by 30% using code-splitting"). Optimize your LinkedIn profile with a professional photo, summary, and featured projects.

Interview Prep

  • Coding Challenges: Use platforms like LeetCode and Frontend Mentor for practice

  • System Design: Understand basics like component architecture, state management, and performance optimization

Next Steps:

Actionable Takeaways

In the first phase (Days 1–15), make steady progress by completing a series of HTML and CSS mini‑projects and committing your work regularly to Git. During Days 16–30, solidify your JavaScript skills by building a to‑do list app, a dynamic quiz widget, and seeking feedback from an AI coding tutor. From Days 31–60, apply your knowledge in a modern framework by creating at least one sample single‑page application and a dashboard app. In Days 61–80, focus on finishing three polished, portfolio‑ready projects that demonstrate diverse front‑end capabilities. Finally, in the launch phase (Days 81–90), refine your portfolio site, perfect your resume and LinkedIn profile, and dedicate time to mock coding challenges and system design prep.

Conclusion

In just 90 days, you can transform from a novice to a competent front-end developer by following this structured plan. Remember, consistency is key, spend at least two hours a day coding, learning, and building. Start today with Day 1: set up your environment and write your first HTML page. Share your progress on Twitter or LinkedIn using #90DayFrontEndChallenge, and connect with fellow learners for accountability.

Try this tip today: Draft your first HTML page and push it to a new GitHub repository, your journey starts now.