Convert CSV to JSON — structured data for apps and APIs
Upload a CSV and instantly convert it to JSON arrays you can copy or download. Ideal for developers, dashboards, and data preparation tasks.
CSV to JSON Converter
How it works
This converter parses your CSV into structured JSON arrays. It is ideal for API payloads, JavaScript apps, dashboards, and data cleaning workflows. Use header mode for clean key-value objects.
- Auto-detect works for most exports; choose semicolon for many EU datasets.
- Header mode outputs an array of objects:
[{"name":"..."}, ...]. - No upload: all parsing happens in your browser.
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FAQ
Header mode uses the first row as keys. No-header mode generates column names like col1, col2.
This tool keeps values as strings by default to avoid losing formatting. You can convert types later in your code.
Yes. Local-only conversion.