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Convertisseur CSV vers JSON

Convertissez CSV en JSON et JSON en CSV en ligne. Gratuit, sans inscription.

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How to Use

  1. Select the conversion direction: CSV → JSON or JSON → CSV
  2. Paste your data into the input area
  3. Click Convert to transform the data
  4. Copy or download the converted output

Common Use Cases

  • Converting spreadsheet exports to JSON for API consumption
  • Transforming API responses to CSV for Excel analysis
  • Migrating data between different database formats
  • Preparing test data in different formats

Frequently Asked Questions

How do I convert CSV to JSON online?
Paste your CSV data into the input area. The first row is used as headers. Click Convert to generate a JSON array of objects.
Can I convert JSON back to CSV?
Yes. Switch to JSON → CSV mode, paste your JSON array, and the tool will generate a CSV file with headers derived from object keys.
Does it handle nested JSON objects?
Yes. Nested objects are flattened using dot notation (e.g., address.city) when converting to CSV columns.