TypeScript Formatter & Beautifier - Free Online

A TypeScript formatter cleans and indents TS files, aligning imports, interfaces, types, and functions. It highlights common syntax issues so you can debug faster. Use it for frontend, backend, or library code without opening an IDE. Everything runs locally for privacy.

1. Paste TS code: Add components, utilities, or declaration files.
2. Choose indentation: Select 2 or 4 spaces to match your style guide.
3. Get results: View formatted code instantly. Copy it or download as a .ts file.

• Readable reviews: Share tidy code in pull requests or docs.
• Quicker debugging: Clear indentation exposes missing braces, commas, or generics.
• Local privacy: No code leaves your device.

Use case 1: React components

Format TSX components before code review to highlight prop types and hooks clearly.

Use case 2: API clients

Beautify generated clients to inspect typings and method signatures.

Use case 3: Library declarations

Clean up .d.ts files to ensure exported types are easy to scan.

Basic example

Input: type User={id:number;name:string}
Output:

type User = {
  id: number;
  name: string;
};

Advanced example

Input: Minified TSX component with generics and hooks
Output: Multi-line, indented component showing props, state, and return JSX clearly.

Unterminated generics

If parsing fails, check for missing > in generic types. The formatter points to the first issue.

JSX syntax issues

Unclosed tags in TSX will break formatting. Close all tags before retrying.

• Keep 2-space indent to match common TS/JS style guides.
• Run your project linter after formatting for rule-specific fixes.
• Pair with the JavaScript formatter for plain JS files.

• Format GraphQL queries with the GraphQL formatter.
• Clean JSON configs using the JSON formatter.

Formatting happens locally in your browser. No TypeScript code is uploaded or stored.