CSV ↔ JSON Converter

Paste CSV or JSON. Convert in either direction.

Your files never leave your device

How it works

Paste either CSV or JSON — the tool auto-detects which one you gave it and converts to the other. Headers become object keys; nested arrays become extra rows where it makes sense.

This site was built in one night using AI.

Every tool here runs on somewhere.tech — the backend for developers who ship with AI coding agents.

30-second build video — coming soon.