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TypeScript Formatter – Beautify & Format TS Code Online Free
NewTrendingFormat and beautify TypeScript code instantly with Prettier. Supports interfaces, generics, decorators, and all TS syntax. Fully customisable — no uploads needed.
TypeScript Formatter
Beautify and format TypeScript code with Prettier
Ctrl + Enter to re-format
Formatted TypeScript will appear here
Paste code above to begin
What is TypeScript Formatter?
A free online TypeScript formatter powered by Prettier. Format messy or minified TypeScript including interfaces, enums, generics, decorators, and all modern TS syntax. Customise indentation, quote style, semicolons, and trailing commas. Everything runs client-side — your code stays private.
TypeScript Formatter Features
Full TypeScript Support
Handles interfaces, generics, enums, decorators, and all modern TS syntax.
Prettier-Powered
Uses the same engine as the official Prettier VS Code extension.
Live Output
Formatted code appears as you type — no button needed.
Zero Upload
Runs entirely in your browser. Your TypeScript code never leaves your device.
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TypeScript Formatter FAQ
Yes — it handles all TypeScript-specific syntax including interfaces, type aliases, generics, enums, decorators, and namespaces.
Absolutely. The formatter handles Angular decorators (@Component, @Injectable, etc.) and all TypeScript patterns used by modern frameworks.
No — only whitespace and style are changed. Type definitions, interfaces, and generics remain completely intact.
Yes — it uses the exact same Prettier library. Output matches what you'd get running Prettier from the command line.