1. Fundamentals of Web Development (1-2 months)

• HTML/CSS: Learn the basics of structuring web pages and styling them. Focus on semantic HTML, CSS Grid, Flexbox, and responsive design.
• JavaScript: Understand core concepts such as variables, data types, functions, and DOM manipulation.
• Version Control (Git): Get comfortable with basic Git commands, branching, and merging.

2. Front-End Development (2-3 months)

• Advanced JavaScript: Dive deeper into ES6+ features, asynchronous programming (Promises, async/await), and error handling.
• Front-End Frameworks/Libraries: Learn popular libraries or frameworks like React.js, Vue.js, or Angular. Focus on component-based architecture, state management, and routing.
• Responsive Design: Master techniques for building applications that work across various screen sizes and devices.

3. Back-End Development (3-4 months)

• Server-Side Languages: Choose a language like Node.js (JavaScript), PHP, Python (Django/Flask), or Ruby on Rails. Learn how to handle server-side logic, routing, and middleware.
• Database Management: Understand SQL (e.g., MySQL, PostgreSQL) and NoSQL (e.g., MongoDB) databases. Learn how to perform CRUD operations, design schemas, and manage data relationships.
• API Development: Learn to create and consume RESTful APIs and GraphQL APIs. Understand concepts like authentication, authorization, and API testing.

4. Full-Stack Integration (2-3 months)

• Connecting Front-End and Back-End: Learn how to make HTTP requests from the front end to the back end and handle responses.
• Authentication & Authorization: Implement user authentication (e.g., JWT, OAuth) and manage user permissions.
• Session Management: Understand sessions, cookies, and local storage for managing user state.

5. DevOps and Deployment (1-2 months)

• Version Control: Use Git for version control in collaboration with tools like GitHub or GitLab.
• Deployment: Learn about deploying applications using services like Heroku, AWS, Azure, or DigitalOcean. Understand CI/CD pipelines and containerization (Docker).
• Monitoring & Logging: Implement logging, error tracking, and performance monitoring to ensure your application runs smoothly.

6. Advanced Topics (2-3 months)

• Performance Optimization: Focus on improving the speed and efficiency of your applications. Learn about caching strategies, code splitting, and lazy loading.
• Security: Understand web security principles such as XSS, CSRF, SQL Injection, and implement best practices to safeguard your applications.
• Testing: Learn different types of testing (unit, integration, end-to-end) and tools/frameworks for testing your applications.

7. Project Development & Portfolio Building (2-4 months)

• Build Projects: Work on full-stack projects to apply your skills. Start with simpler projects and gradually take on more complex ones.
• Portfolio: Create a portfolio website showcasing your projects, skills, and experience. This is crucial for job applications and freelance work.

Total Duration

Overall, the roadmap can take approximately 12-18 months depending on your prior experience, learning pace, and the time you can dedicate to study and practice.