JSON to TypeScript Converter – Paste JSON, Get Interfaces If you work with APIs or config files, you’ve probably spent time manually writing TypeScript interfaces to match JSON structures. I built JSON to TypeScript Converter to cut that down to seconds. The tool does one thing: you paste JSON, and it generates clean, readable TypeScript interfaces. That’s it. No account needed. No data stored. Just input and output. It handles nested objects, arrays, optional fields (based on null values), and basic type inference. The output is formatted with Prettier, so it’s ready to drop into your codebase. There’s a free tier that covers most use cases. You can convert up to 50KB of JSON at once, and there are no usage limits. It’s enough for daily use, whether you’re prototyping or integrating third-party APIs. For heavier needs, there’s a Pro tier at $9/month .…