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Quick Answer

Our free online TypeScript editor lets you write, compile, and run TypeScript code directly in your browser. Features real-time type checking, error highlighting, and instant JavaScript output with no installation required.

How It Works

1

Write your TypeScript code in the editor

2

See real-time type errors and suggestions

3

Click Run to compile and execute

4

View JavaScript output and console results

Key Facts

  • Write and run TypeScript code instantly in the browser
  • Real-time type checking and error detection
  • See compiled JavaScript output
  • Latest TypeScript version support
  • Share your code via URL
  • No installation or sign-up required

Frequently Asked Questions

Which TypeScript version is supported?

We use the latest stable TypeScript version with support for all modern features including decorators, generics, and advanced types.

Can I use npm packages?

Basic type definitions for common libraries are available. For full npm support, consider using our bundled environment.

Is my code stored anywhere?

No, all compilation and execution happens in your browser. Your code is only stored if you choose to share it via URL.

Can I see the compiled JavaScript?

Yes, the editor shows the compiled JavaScript output alongside your TypeScript code.