Cursor AI Tutorial: From Installation to Mastery [2026]

Cursor is the best AI code editor in 2026. This tutorial covers everything from installation to advanced features.

Getting Started

Install Cursor

1. Go to cursor.com
2. Download the desktop app (macOS/Windows/Linux)
3. Install and open
4. Sign in (free tier available)

First Look

Cursor looks like VS Code because it's built on it. All your VS Code extensions, themes, and settings transfer over.

Core Features

1. AI Autocomplete

Start typing and Cursor predicts what you want to write. Press Tab to accept.

Tip: Write clear function names and comments — Cursor reads these to guess your intent.

2. Chat (Ctrl+K or Cmd+K)

Open inline chat to ask AI questions about your code:
- "Explain this function"
- "Find potential bugs"
- "Suggest improvements"

3. Composer (Ctrl+Shift+I or Cmd+Shift+I)

The most powerful feature. Make changes across multiple files:
- "Add dark mode support"
- "Create a login component"
- "Refactor the database layer"

4. Agent Mode

Let Cursor autonomously plan and execute tasks:
- Searches your codebase
- Runs terminal commands
- Creates and modifies files
- Installs packages

Real Workflow

Task: Add a search feature to your app

1. Open Cursor
2. Open Composer (Ctrl+Shift+I)
3. Type: "Add a full-text search feature
   - Search bar in the header
   - Results page with pagination
   - Debounce input (300ms)
   - Use existing API endpoints"
4. Review the changes in diff view
5. Accept or modify

Keyboard Shortcuts

Pro Tips

1. Use .cursorrules — Create a .cursorrules file in your project root to set project-specific instructions
2. Reference files — Use @filename in Chat to reference specific files
3. Clear context — Start fresh for each unrelated task
4. Review diffs — Always review AI changes before accepting

Summary

Cursor is the most practical AI coding tool in 2026. Start with Chat for questions, graduate to Composer for multi-file changes, and use Agent for autonomous tasks.