About the TypeScript Formatter
TypeScript adds complex type annotations, interface definitions, generic type parameters, and union/intersection types on top of standard JavaScript. When type definitions become dense or minified, readability suffers. This TypeScript Formatter parses TS code and aligns type signatures with clean spacing.
This tool is built for TypeScript developers sharing type definitions, documenting API contracts, or refactoring large interfaces. It cleanly indents type aliases, interfaces, function signatures, enums, and class definitions.
To use the tool, paste your TypeScript code into the editor, select your preferred indentation width (2 or 4 spaces), and click 'Format TypeScript'. The tool formats the types and outputs clean code ready to copy or download as a .ts file.
For instance, an interface like 'export interface ApiResponse<T>{data:T;status:number;errors?:string[];}' is formatted with each property on its own indented line, making optional fields and generics crystal clear.
A common TypeScript best practice is keeping interface properties consistently formatted with trailing semicolons to prevent ambiguity in complex nested types.
Tip: Use this tool alongside our JSON to TypeScript converter to quickly transform API payloads into polished, production-grade type declarations.