Does it handle headers automatically?

Yes, the first row of your CSV is automatically used as JSON keys.

Can I convert JSON arrays to CSV?

Yes, JSON arrays of objects are converted into CSV rows with object keys as headers.

Is my data sent anywhere?

No. All processing is local in your browser.

CSV ↔ JSON Converter

Instantly convert CSV files and text to JSON format and vice versa. Fully local and private.

Output Result

What are CSV and JSON formats?

CSV (Comma-Separated Values) is a very simple file format used to store tabular data, like a spreadsheet or database. JSON (JavaScript Object Notation) is a lightweight data-interchange format that is easy for humans to read and write and easy for machines to parse.

Free CSV to JSON Converter Online

CSV and JSON are two of the most widely used data formats in software development and business analytics. CSV excels in tabular data for spreadsheets, while JSON handles hierarchical data for APIs and web applications. Our converter bridges these two worlds seamlessly.

The tool auto-detects headers and data types, handling edge cases like quoted fields, escaped characters, and multiline values. All conversion happens in your browser for complete data privacy.

How to Use This Tool

Paste your CSV or JSON data into the input area.
Select the conversion direction (CSV→JSON or JSON→CSV).
Copy or download the converted result.

Frequently Asked Questions

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