TypeScript Formatter
Format and beautify TypeScript code with Prettier-style indentation. Handles interfaces, generics, decorators, type aliases, and async/await patterns.
TypeScript & Prettier
TypeScript is a typed superset of JavaScript developed by Microsoft. The dominant formatting tool for TypeScript is Prettier, which uses 2-space indentation by default (configurable). Prettier is opinionated and has almost no configuration options by design — the goal is to end formatting debates. The TypeScript team internally uses Prettier for the TypeScript compiler codebase itself.
Frequently Asked Questions
interface supports declaration merging (you can add properties by redeclaring the interface), and is generally preferred for object shapes and class contracts. type is more flexible — it can represent unions, intersections, tuples, and primitive aliases. Microsoft's TypeScript team recommends interface for public API shapes.any disables type checking entirely — you can call any property or method on an any value without errors. unknown is the type-safe alternative — you must narrow the type (via typeof, instanceof, or type guards) before using it. Prefer unknown over any for values whose type you don't know at compile time.experimentalDecorators) that allow you to attach metadata or modify the behaviour of classes, methods, properties, and parameters. They are widely used in frameworks like Angular (@Component, @Injectable) and NestJS (@Controller, @Get).What is TypeScript Formatter?
TypeScript Formatter is a free online utility designed to help developers, designers, and technical professionals work more efficiently. This tool runs entirely in your browser — no installation required, no data sent to any server.
How to Use TypeScript Formatter
- Paste or type your input in the editor area above.
- Click the action button to process your content.
- Copy the output or download the result.
Key Features
- 100% Free — No registration or payment required.
- Client-side Processing — Your data never leaves your browser.
- Instant Results — Get output in milliseconds.
- No Installation — Works directly in your web browser.
- Mobile Friendly — Works on phones, tablets, and desktops.
Who Uses TypeScript Formatter?
This tool is widely used by web developers, software engineers, data analysts, students, and IT professionals who need a quick and reliable way to process data without setting up complex software environments.