This lightweight TypeScript Formatter formats TypeScript-like code and does quick static validation checks in-browser. It is meant for fast styling and preliminary lint-like feedback without sending code to a server.
TypeScript Formatter — format & validate
Paste TypeScript code below, click Format to pretty-print, or Validate to run quick static checks.
Example:
const greet = (name: string) => console.log(`Hello ${name}`)
Formatted output
Result of the formatter — copy or download.
Not formatted
Validation report
Validation results will appear here after clicking "Validate".
Intro
This lightweight TypeScript Formatter formats TypeScript-like code and does quick static validation checks in-browser. It is meant for fast styling and preliminary lint-like feedback without sending code to a server.
Why use this tool?
- Quickly clean up indentation and spacing for readability.
- Get instant static checks for common issues (unmatched braces, missing semicolons, `==` vs `===`).
- No external dependencies; runs fully in your browser.
How to use
- Paste your TypeScript code into the editor.
- Choose indent size (2/4/tab).
- Click Format to pretty-print; click Validate to run checks.
- Copy or download the formatted code.
FAQ
No. All formatting and validation happens locally in your browser — nothing is sent to our servers.
No. This tool does lightweight formatting and static checks. For type-checking and compilation use the TypeScript compiler (tsc) or the TypeScript Playground.
You can adjust the indent size. For advanced rule changes (braces on new line, wrapping rules), integrate Prettier or ESLint in a more feature-rich environment.
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