How to Convert JSON to CSV (and Back) in Your Browser

Moving data between formats is a constant chore — an API returns JSON but your spreadsheet wants CSV, or a config is YAML but your code expects JSON. A browser-based converter does it instantly without sending your data anywhere.

Convert in 3 steps

1. Open the Data Converter and pick a conversion (e.g. JSON → CSV).
2. Paste your data into the input box.
3. The result appears live on the right — copy it and you're done.

For JSON → CSV, use an array of objects; column headers come from the object keys. Everything runs locally — nothing is uploaded.

More conversions

• CSV → JSON — turn a spreadsheet export into structured JSON.
• YAML ↔ JSON — switch config formats in one click.
• JSON → TypeScript — generate interfaces from a sample response.