JSON to TypeScript
Generate TypeScript interfaces from JSON data
What is JSON to TypeScript?
JSON to TypeScript generates TypeScript interfaces or type definitions from JSON data, giving you fully typed structures instantly.
When to use this tool
- Creating type definitions for API response payloads
- Generating interfaces from sample JSON data
- Setting up types for third-party API integrations
- Speeding up TypeScript project setup with real data shapes
How it works
Recursively analyzes the JSON structure, infers types for each property (string, number, boolean, array, nested object, null), and generates corresponding TypeScript interface declarations with proper optional markers.
Examples
About JSON to TypeScript
Generate TypeScript interfaces from JSON data It runs entirely in your browser — no files are uploaded to any server, ensuring complete privacy and instant results.
- •Validate JSON syntax instantly
- •Format or minify JSON output
- •Convert JSON to YAML, CSV, or XML
- •Handle large files in-browser
Last updated: 2025-01-15
FAQ
Generate TypeScript interfaces from JSON data
Yes, completely free. No signup required.
Yes. Runs entirely in your browser, no files uploaded.
Yes, works on any device with a modern browser.
No, everything runs in your browser.