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Real TypeScript compiler in the browser — see compiled JS, type errors, and AST live.
(compile output will appear here)
Real typescript compiler. Compiles + type-checks live as you type. JSX toggle switches to .tsx input. Note: full lib.dom.d.ts / lib.es*.d.ts isn't loaded — most type errors still surface but DOM and built-in types may show as unknown.
Write TypeScript in your browser, see compiled JavaScript and type-check errors live. Pick the target (ES2015 → ESNext), toggle strict mode, enable JSX, choose module format. Output panel switches between compiled JS, type errors, and AST. Everything runs locally with the real TypeScript compiler.
Learn how to write, compile, and debug TypeScript code directly in your browser using the live compiler.
Access the TypeScript Playground tool
Open the TypeScript Playground in your browser to access the real-time compiler and editor interface.
Write or paste your TypeScript code
Enter your code into the editor to see live type-check errors and instant JavaScript compilation.
Configure compiler and target settings
Select your desired JavaScript target from ES2015 to ESNext and toggle strict mode or JSX support.
Choose your preferred output format
Toggle the output panel to switch between compiled JavaScript, diagnostic type errors, or the Abstract Syntax Tree.
Review and export your results
Analyze the generated code and fix any highlighted type errors before copying the final JavaScript output.
Estimated time: PT2M
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