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Frontend Academy

Develop visually stunning and responsive websites with Frontend Development Academy. A CoddyKit learning path of 41 short courses and 163 interactive lessons, with a 24/7 AI tutor at your side.

Courses
41
Lessons
163
Interactive steps
2,186
Free to start
Course 1
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About the mobile app: Learn Frontend Web Development →

Curriculum

41 courses in this path

Every course in the Frontend Academy path, in learning order. The first one is free.

1

A13 lessonsFree

Understand what frontend developers actually do, why this is one of the most in-demand and creative tech careers, and how HTML, CSS, and JavaScript work together.

  1. 1What is Frontend Development?
  2. 2The Frontend Tech Trio
  3. 3Your Future as a Frontend Dev
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2

A14 lessonsPRO

Understand the foundations of the web: how browsers request pages, what DNS does, how HTTP works, and what happens when you type a URL. You'll finish knowing exactly what a browser does before a sing…

  1. 1Browsers DNS and HTTP: The Request Lifecycle
  2. 2HTML CSS and JavaScript: Each Layer's Job
  3. 3How a Page Renders: Parsing DOM CSSOM Layout Paint
  4. +1 more
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3

A14 lessonsPRO

Learn the building blocks of every webpage. Write valid HTML5 documents using semantic elements, structure content with headings and lists, embed images and links, and build accessible forms.

  1. 1Document Structure: DOCTYPE html head body
  2. 2Semantic Tags: header nav main article footer
  3. 3Text Images Links and Lists
  4. +1 more
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4

A14 lessonsPRO

Style your HTML with confidence. Learn how the cascade and specificity work, apply colors and typography, master the box model, and control layout with display properties and positioning.

  1. 1Selectors and the Cascade
  2. 2Colors Typography and the Box Model
  3. 3Display: block inline flex grid basics
  4. +1 more
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5

A14 lessonsPRO

Write your first JavaScript programs. Learn to declare variables, work with primitive data types, define functions, and control program flow with conditionals and loops.

  1. 1Variables: let const var and Scope
  2. 2Data Types: string number boolean null undefined
  3. 3Functions: declarations expressions arrow functions
  4. +1 more
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6

A14 lessonsPRO

Work like a professional frontend developer. Master Chrome DevTools for inspecting and debugging, configure VSCode with helpful extensions, and set up code quality tools like Prettier and ESLint.

  1. 1Chrome DevTools: Elements Console Network
  2. 2VSCode: Extensions Emmet Shortcuts
  3. 3Prettier and ESLint Setup
  4. +1 more
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7

A24 lessonsPRO

Add types to JavaScript and catch bugs before they reach the browser. Learn TypeScript's type system, annotate variables and functions, define interfaces, and compile TypeScript to JavaScript with ts…

  1. 1Why TypeScript: Types Catch Bugs at Compile Time
  2. 2Primitive Types Unions and Type Aliases
  3. 3Interfaces and Object Types
  4. +1 more
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8

A24 lessonsPRO

Make your HTML interactive with JavaScript. Select elements, listen for events, read and change content, and dynamically create or remove elements using the Document Object Model.

  1. 1querySelector and querySelectorAll
  2. 2addEventListener and Event Object
  3. 3Changing Content: textContent innerHTML classList
  4. +1 more
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9

A24 lessonsPRO

Build layouts that work on any screen size. Learn the viewport meta tag, use Flexbox and Grid for fluid layouts, and write media queries using a mobile-first approach.

  1. 1The Viewport Meta Tag
  2. 2Flexbox for Layout
  3. 3CSS Grid for Layout
  4. +1 more
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10

A24 lessonsPRO

Deepen your HTML knowledge. Build fully accessible forms with ARIA attributes, use the full range of HTML5 input types, leverage native validation, and write markup that communicates structure to all…

  1. 1Form Controls: input types select textarea
  2. 2ARIA and Accessibility: label role aria-*
  3. 3Semantic HTML5: semantic vs div soup
  4. +1 more
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11

A24 lessonsPRO

Level up your JavaScript with modern syntax and powerful built-in methods. Manipulate arrays with map, filter, and reduce, destructure objects, spread data, use template literals, and write modular c…

  1. 1Array Methods: map filter reduce find
  2. 2Object Destructuring and Spread
  3. 3Template Literals and Optional Chaining
  4. +1 more
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12

A24 lessonsPRO

Use Git effectively as a frontend developer. Learn the core commands for saving work, understand branching for feature development, push to GitHub, and collaborate through pull requests.

  1. 1git init add commit and status
  2. 2Branching: branch checkout merge
  3. 3Remote Repos: push pull clone
  4. +1 more
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13

A24 lessonsPRO

Bring interfaces to life with CSS motion. Use custom properties for maintainable design tokens, add smooth transitions to state changes, build keyframe animations, and respect users' motion preferenc…

  1. 1CSS Custom Properties: declaring and updating
  2. 2Transitions: property duration timing
  3. 3@keyframes Animations
  4. +1 more
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14

B14 lessonsPRO

Go beyond basics to truly master CSS layout. Explore Flexbox alignment and wrapping in depth, harness CSS Grid template areas and auto-fit, combine both techniques, and use CSS custom properties for…

  1. 1Flexbox Deep Dive: alignment wrapping order
  2. 2CSS Grid: template-areas auto-fit minmax
  3. 3Combining Flexbox and Grid
  4. +1 more
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15

B14 lessonsPRO

Understand the modern JavaScript toolchain. Use ES module syntax, manage packages with npm, spin up instant dev servers with Vite, and learn the bundling concepts that keep production bundles small.

  1. 1ES Modules: import export and dynamic import
  2. 2npm and package.json: dependencies scripts
  3. 3Vite: dev server and build
  4. +1 more
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16

B14 lessonsPRO

Go deeper into TypeScript's type system. Write reusable generic functions, use utility types to transform interfaces, build mapped and conditional types, and narrow types safely at runtime.

  1. 1Generics: T extends and constraints
  2. 2Utility Types: Partial Required Pick Omit
  3. 3Mapped Types and Conditional Types
  4. +1 more
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17

B14 lessonsPRO

Build your first React applications. Understand JSX syntax, compose UIs from functional components, pass data with props, and manage local state with the useState hook to create interactive interface…

  1. 1JSX: Syntax and Transpilation
  2. 2Functional Components and Props
  3. 3useState Hook: State and Re-renders
  4. +1 more
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18

B14 lessonsPRO

Synchronize React components with external systems. Learn how useEffect works, fetch data from APIs on mount, display loading and error states, and clean up side effects correctly with AbortControlle…

  1. 1useEffect Basics: Dependencies and Cleanup
  2. 2Fetching Data on Mount
  3. 3Handling Loading and Error States
  4. +1 more
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19

B14 lessonsPRO

Build your first Vue 3 applications using Single-File Components. Learn the Options API, core directives, and how to communicate between parent and child components with props and emits.

  1. 1Vue SFC: script template style
  2. 2Options API: data methods computed
  3. 3Directives: v-if v-for v-bind v-on
  4. +1 more
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20

B14 lessonsPRO

Build interfaces that everyone can use. Understand WCAG conformance levels, use semantic HTML as the accessibility foundation, apply ARIA roles and attributes correctly, and ensure full keyboard navi…

  1. 1WCAG Levels A AA AAA
  2. 2Semantic HTML as the Foundation
  3. 3ARIA Roles and Attributes
  4. +1 more
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21

B24 lessonsPRO

Master asynchronous JavaScript from the ground up. Understand the event loop, move from callback patterns to Promises, and write clean async/await code with proper error handling.

  1. 1The Event Loop: Call Stack Queue Microtasks
  2. 2Callbacks and Callback Hell
  3. 3Promises: then catch finally Promise.all
  4. +1 more
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22

B24 lessonsPRO

Master the full React hooks API. Share data without prop drilling using useContext, manage complex state with useReducer, optimise performance with useMemo and useCallback, and extract logic into cus…

  1. 1useContext for Global State
  2. 2useReducer for Complex State
  3. 3useMemo and useCallback for Performance
  4. +1 more
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23

B24 lessonsPRO

Unlock the full power of Vue 3 with the Composition API. Use ref and reactive for reactive state, computed and watch for derived values and side effects, and build reusable composables.

  1. 1ref() and reactive()
  2. 2computed() and watch()
  3. 3The setup() Function and script setup
  4. +1 more
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24

B24 lessonsPRO

Manage application-wide state effectively. Learn Redux Toolkit for React, lightweight Zustand as a simpler alternative, Pinia for Vue, and the principles that help you decide when global state is act…

  1. 1Redux Toolkit: createSlice and configureStore
  2. 2Zustand for Lightweight React State
  3. 3Pinia for Vue: defineStore and storeToRefs
  4. +1 more
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25

B24 lessonsPRO

Write automated tests for your frontend code. Set up Jest, test React components with Testing Library, test Vue components, and mock modules and API calls so tests stay fast and isolated.

  1. 1Jest Setup and Basic Tests
  2. 2@testing-library/react: render userEvent
  3. 3@testing-library/vue: mounting components
  4. +1 more
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26

B24 lessonsPRO

Write CSS that scales. Learn the BEM naming convention for predictable selectors, scope styles with CSS Modules, add CSS directly in JavaScript with styled-components and Emotion, and adopt Tailwind…

  1. 1BEM Methodology: Block Element Modifier
  2. 2CSS Modules: Scoped Class Names
  3. 3CSS-in-JS: Styled-components and Emotion
  4. +1 more
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27

B24 lessonsPRO

Connect your frontend to backend APIs. Use the native Fetch API for all HTTP methods, add Axios for interceptors and base URLs, handle HTTP errors gracefully, and cache server data with SWR or React…

  1. 1Fetch API: GET POST PUT DELETE
  2. 2Axios: Interceptors and Base URL
  3. 3Error Handling: HTTP Status Codes
  4. +1 more
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28

B24 lessonsPRO

Build production React applications with Next.js. Understand both the Pages Router and the modern App Router, distinguish Server from Client Components, choose the right rendering strategy, and add s…

  1. 1Pages Router vs App Router
  2. 2Server Components and Client Components
  3. 3SSG SSR and ISR
  4. +1 more
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29

B24 lessonsPRO

Build full-stack Vue applications with Nuxt 3. Use file-based routing and auto-imports to eliminate boilerplate, fetch server data with composables, extend functionality with modules, and deploy as s…

  1. 1File-based Routing and Auto-imports
  2. 2useFetch and useAsyncData
  3. 3Nuxt Modules: Image Auth i18n
  4. +1 more
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30

B24 lessonsPRO

Turn websites into app-like experiences. Write a Web App Manifest for installability, register Service Workers for offline support, implement caching strategies, and add push notifications.

  1. 1The Web App Manifest
  2. 2Service Worker Registration and Lifecycle
  3. 3Offline Caching Strategies: CacheFirst NetworkFirst
  4. +1 more
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31

B24 lessonsPRO

Build real-time user interfaces. Use the native WebSocket API, integrate the Socket.io client library, receive server-sent events for one-way data streams, and apply UI patterns for live data like op…

  1. 1WebSocket API: open message close error
  2. 2Socket.io Client Integration
  3. 3Server-Sent Events for One-Way Streaming
  4. +1 more
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32

B24 lessonsPRO

Master the fast-evolving JavaScript toolchain. Extend Vite with plugins and use it for SSR, understand how esbuild achieves its speed, manage workspaces with pnpm, and accelerate monorepo builds with…

  1. 1Vite: Plugin System and SSR Mode
  2. 2esbuild: Speed and Limitations
  3. 3pnpm Workspaces for Monorepos
  4. +1 more
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33

C14 lessonsPRO

Make your sites fast and measure the improvement. Understand Core Web Vitals, run Lighthouse audits, optimise images for the web, and reduce JavaScript payload size with code splitting and lazy loadi…

  1. 1Core Web Vitals: LCP FID CLS
  2. 2Lighthouse Audits and Scoring
  3. 3Image Optimization: lazy loading formats WebP
  4. +1 more
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34

C14 lessonsPRO

Push TypeScript to its limits. Build types with template literal types, annotate React components and hooks with precise generics, enable strict mode to eliminate unsafe any usage, and explore decora…

  1. 1Template Literal Types
  2. 2Decorators and Metadata
  3. 3TypeScript with React: FC generics hooks
  4. +1 more
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35

C14 lessonsPRO

Write React code the way library authors do. Build compound components backed by Context, apply render props and HOCs to share cross-cutting concerns, render outside the tree with Portals, and recove…

  1. 1Compound Components with Context
  2. 2Render Props and HOC Patterns
  3. 3Portals for Modals and Tooltips
  4. +1 more
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36

C14 lessonsPRO

Master advanced Vue 3 patterns used in professional applications. Share logic across a component tree with provide/inject, load components asynchronously with Suspense, write custom directives, and e…

  1. 1provide() and inject() for Dependency Injection
  2. 2Async Components and Suspense
  3. 3Custom Directives
  4. +1 more
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37

C14 lessonsPRO

Design frontend applications that scale to large teams. Apply Atomic Design to component hierarchies, manage multiple packages with Turborepo monorepos, implement micro-frontend Module Federation, an…

  1. 1Atomic Design: Atoms Molecules Organisms
  2. 2Monorepo Setup with Turborepo
  3. 3Micro-frontends: Module Federation
  4. +1 more
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38

C14 lessonsPRO

Build and maintain a shared component library. Document components in Storybook, define design tokens with Style Dictionary, version and publish to npm, and integrate the system into consuming applic…

  1. 1Storybook: Stories Controls and Docs
  2. 2Design Tokens with Style Dictionary
  3. 3Versioning and Publishing to npm
  4. +1 more
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39

C14 lessonsPRO

Defend your users against web security threats. Prevent XSS with output encoding and Content Security Policy, protect against CSRF with SameSite cookies and tokens, configure CSP headers, and impleme…

  1. 1XSS Prevention: Output Encoding CSP
  2. 2CSRF: SameSite Cookies and Tokens
  3. 3Content Security Policy: nonce and hash
  4. +1 more
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40

C14 lessonsPRO

Automate the delivery of your frontend. Write GitHub Actions workflows to lint, test, and build on every push, deploy automatically to Vercel, Netlify, and Cloudflare Pages, manage environment variab…

  1. 1GitHub Actions for Frontend: lint test build
  2. 2Deploying to Vercel Netlify and Cloudflare Pages
  3. 3Environment Variables in CI
  4. +1 more
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41

C24 lessonsPRO

Operate at the senior level. Approach system design interviews with frontend-specific frameworks, foster a healthy code review culture, grow junior engineers through mentoring and documentation, and…

  1. 1Frontend System Design Interviews
  2. 2Code Review Culture and PR Best Practices
  3. 3Mentoring and Technical Documentation
  4. +1 more
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Course Overview

Build the Full Spectrum of Modern Frontend

Frontend development is the discipline of turning code into everything a user sees and interacts with in a browser — HTML structure, CSS presentation, JavaScript behaviour, and the frameworks and tooling that tie them together at production scale. This track covers the complete stack: from how the web delivers a page to writing type-safe React and Vue applications, optimising performance, and deploying through a CI/CD pipeline.

What You Will Learn

You will start with HTML, CSS, and JavaScript fundamentals, then gain fluency in TypeScript, the DOM and Browser APIs, responsive design, and ES6+ patterns including async programming and modules. From there you move into React (hooks, advanced patterns, Next.js SSR) and Vue 3 (Composition API, Nuxt 3 SSR), state management, frontend testing, CSS architecture, and real-time interfaces with WebSockets. The track closes with web performance optimisation, frontend security, design systems, and frontend CI/CD and DevOps.

The Learning Path

Forty-one courses span levels A1 through C2. The A1 and A2 courses establish the foundations — how the web works, semantic markup, CSS animations, Git, and TypeScript introduction. B1 and B2 courses build professional competence: CSS Layout Mastery, JavaScript Modules and Build Tools, React and Vue 3 fundamentals, API integration, Progressive Web Apps, and Server-Side Rendering with both Next.js and Nuxt 3. The C1 courses handle senior-level concerns: Advanced TypeScript for Frontend, React Advanced Patterns, Vue Advanced Patterns, Frontend Architecture, Design Systems and Component Libraries, Frontend Security, and Frontend CI/CD and DevOps. The track ends at C2 with Senior Frontend Engineering, which consolidates everything into production-grade practice.

How It Works

Each course is split into short, hands-on lessons you complete in the built-in code editor with real-time feedback. An AI tutor is available whenever you get stuck, and every concept is reinforced through exercises that reflect real browser and framework behaviour rather than contrived examples.

Tools

Practice with AI, not just read

Supercharge your learning with AI-powered tools and features

AI Code GeneratorGenerate code with AIAI Bug FixFind & fix code errorsPROAI InsightDeep code analysisPROAI ChatChat with AI tutorAsk Super QuestionGet expert-level answersPROCreate LessonAI-powered lesson builderPROStart Certification ExamEarn your certificatePROCode EditorWrite & run codeStart ChallengeTest your skills

How You'll Learn

  1. 01

    Interactive Lessons

    Hands-on coding exercises with real-time feedback

  2. 02

    AI Tutor

    Get instant help from our AI when you're stuck

  3. 03

    Built-in Editor

    Write and run code directly in your browser

  4. 04

    Certificate

    Earn a certificate when you complete the course

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HTML for Kids logoHTML for KidsIntroduce kids to web development with fun and easy HTML lessons at HTML for Kids.HTML Academy logoHTML AcademyBuild strong foundations in web development by learning HTML at HTML Academy.Angular Academy logoAngular AcademyLearn Angular to build scalable and modern web applications with Angular Academy.Vue Academy logoVue AcademyCreate interactive and efficient user interfaces with Vue.js through Vue Academy.Sveltejs Academy logoSveltejs AcademyBuild fast and simple user interfaces with modern techniques at Svelte Academy.Web Accessibility Academy logoWeb Accessibility AcademyBuild inclusive websites everyone can use. Master semantic HTML, ARIA, keyboard and scree…
FAQ

Frequently Asked Questions

Is the Frontend Academy course free?

Yes. You can start the Frontend Academy course for free and complete its interactive lessons at no cost. An optional PRO subscription unlocks advanced AI tools and a shareable certificate.

Do I need prior experience to learn HTML?

No. The course begins with the fundamentals and gradually moves to more advanced topics, so you can start even with no prior HTML experience.

How will I learn HTML on CoddyKit?

You learn by doing. Short interactive lessons pair a clear explanation with a hands-on coding exercise that runs in real time, and a 24/7 AI tutor gives personalized help whenever you get stuck.

Do I get a certificate for completing Frontend Academy?

Yes. PRO learners can take an exam and earn a shareable certificate of completion with a verifiable code for the Frontend Academy course.

Can I learn HTML on my phone?

Yes. CoddyKit is available on the web and as native iOS and Android apps, so you can learn HTML on any device and your progress syncs across them.

How much does CoddyKit PRO cost?

The first course of Frontend Academy is free. CoddyKit PRO unlocks every course: $5.90 per week, $7.90 per month, $29.90 per year, or $69.99 once for lifetime access with no renewals.

How long does it take to complete Frontend Academy?

Frontend Academy has 41 courses and 163 lessons. Most lessons take about 5–10 minutes, so the whole path is roughly 19 hours of hands-on practice, at your own pace.

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