Convert CSV files to JSON or JSON arrays to CSV. Load from file or paste directly.
Always verify your converted data
Automated conversion is not perfect. Special characters, numbers stored as text, date formats, and nested structures may not convert exactly as expected. Always review the output manually before using it.
Number detection
Numbers and booleans are automatically detected and typed correctly.
Nested objects
When converting JSON→CSV, nested objects are serialized as JSON strings.
Headers required
CSV→JSON requires the first row to be column headers.
Always verify
Check your output for missing fields, wrong types, or encoding issues.