Which direction can I convert?

Both ways — CSV to JSON and JSON to CSV are supported.

Is my data sent to a server?

No. The conversion runs locally in your browser, so your data stays private.

Does it handle nested JSON?

Flat tabular data converts cleanly; deeply nested structures may need flattening first.

Converter

CSV ↔ JSON Converter

Convert between CSV and JSON formats. Convert from CSV to JSON or JSON to CSV.

Upload CSV File

Result (JSON)

Enter CSV to see JSON

Output Character Count: 0

CSV ↔ JSON Converter

Convert data between CSV and JSON in both directions. Paste a CSV table to get clean JSON, or paste JSON to get a CSV file — ideal for moving data between spreadsheets, APIs and code.

How to use

Paste your CSV or JSON data into the input area.
Choose the direction: CSV to JSON or JSON to CSV.
Review the converted output instantly.
Copy or download the result for your spreadsheet or app.

Frequently asked questions

Which direction can I convert?: Both ways — CSV to JSON and JSON to CSV are supported.
Is my data sent to a server?: No. The conversion runs locally in your browser, so your data stays private.
Does it handle nested JSON?: Flat tabular data converts cleanly; deeply nested structures may need flattening first.