JSON ↔ CSV

How to use

Paste JSON (object or array of objects) or CSV into the input. After you stop typing, the tool detects the format and converts automatically — no Convert button needed. A short hint under the output shows which direction ran (JSON → CSV or CSV → JSON).

Tips

• Auto-detect: a value that starts with { or [ and parses as strict JSON becomes CSV; everything else is treated as CSV and converted to JSON.
• JSON → CSV works best with an array of flat objects; a single object becomes one data row. Flatten nested fields first if you need their values in cells.
• While you are still typing incomplete JSON/CSV, conversion may fail until the document is valid — finish the structure, then pause briefly.
• Configs or exports with secrets should stay in a local tool, not on sites that upload content.