TypeScript Formatter
FreeFormat and prettify TypeScript code with Prettier
interface X{
a:number;
b:string;
}
const y:X={
a:1,b:"z"}
;About TypeScript Formatter
TypeScript adds type annotations, generics, and interfaces that make consistent formatting even more valuable for readability. The TypeScript Formatter runs your code through Prettier, applying uniform indentation, spacing, and line breaks so types, decorators, and complex signatures stay clean and easy to follow.
Paste your code and the tool reformats it instantly while keeping every type and statement intact. It's free, browser-based, and requires no account. Use it to standardize a file before committing, clean up code copied from a snippet or playground, or apply consistent style to TypeScript that came from another editor, keeping your annotations and interfaces neatly laid out and your codebase uniform across the team.
Common uses
- Format TypeScript with generics and interfaces into a clean, consistent layout
- Apply Prettier style to a snippet copied from the TypeScript playground
- Tidy decorators and type annotations before committing a component or service
- Standardize a file pasted from another editor so indentation and quotes match
- Make a dense type-heavy module readable before a code review
How to use
- 1
Configure options
Set your preferences using the options panel below.
- 2
Click Generate
Click the process button to generate your result instantly.
- 3
Copy or download
Copy the result to clipboard or download it directly to your device.
Why ToolHub?
- Clean readable code
- Standards-compliant formatting
- One-click beautify
FAQ
What does it use to format the code?
It uses Prettier with TypeScript support, so it understands type annotations, generics, and interfaces while reformatting.
Does it type-check my code?
No. It formats style only. It does not run the compiler or report type errors; use your build tools for that.
Will it change my type annotations?
No. Types, generics, and signatures are preserved exactly. Only whitespace and line layout are adjusted.
Does it handle TSX and decorators?
Yes. TSX syntax and decorator usage are supported and formatted along with the rest of the file.
Can I use TypeScript Formatter on mobile?
Yes — ToolHub is fully responsive and works on iPhone, Android, tablets and all modern browsers. No app install needed.