Last updated: April 13, 2026
JSON Formatter for TypeScript Developers
Quick Answer
DevToolHQ's json formatter works great alongside TypeScript. Use it to quickly json formatter during development, then integrate the pattern into your TypeScript codebase using the code example below.
Use Cases in TypeScript
- 1.Format API responses in TypeScript for debugging
- 2.Pretty-print configuration files
- 3.Validate JSON payloads from webhooks
- 4.Debug REST API request/response bodies
TypeScript Code Example
// TypeScript — strict JSON typing
interface ApiResponse<T> {
data: T;
meta: { total: number; page: number };
}
function prettyPrint<T>(obj: T): string {
return JSON.stringify(obj, null, 2);
}
// Parse with unknown type assertion
function parseJSON<T>(raw: string): T {
return JSON.parse(raw) as T;
}
// Typed JSON replacer
const replacer = (key: string, value: unknown) =>
value instanceof Date ? value.toISOString() : value;
console.log(JSON.stringify({ createdAt: new Date() }, replacer, 2));Try the tool directly
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Frequently Asked Questions
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