CSV ↔ JSON Converter

Convert a CSV table to JSON objects or flat JSON objects to CSV. Keep column names explicit and preview the resulting data.

Open the interactive workspace with JavaScript enabled. Preview and editing are free.

How to use CSV ↔ JSON Converter

1. Choose the conversion direction.
2. Load or paste data and choose the CSV delimiter.
3. Prepare the result and export CSV or JSON.

Output and supported files

CSV ↔ JSON. 5 MB; 5,000 rows; 100,000 cells. CSV values become strings; JSON missing/null values become empty cells. Nested JSON is rejected.

Do my files leave my device?

Your file contents stay in your browser. Account, credits and tool-usage requests reach Oxodian.

Related tools

Files are processed on your device. Sign in for five daily free credits; one export or started session costs one credit. Unused daily credits do not roll over. Device and file limits apply.