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CSV to JSON Converter
Convert CSV files to JSON arrays with flexible parsing options. Upload a file or paste data and export JSON instantly.
How to use this tool
- Paste CSV or upload a file, then choose delimiter detection and header mode.
- Adjust parsing options like dynamic typing and empty-line handling.
- Copy or download JSON output, then export the diagnostics report if you need validation details.
Parser controls
- Auto-detect mode works for most files, but you can force comma, semicolon, tab, or pipe delimiters.
- Header mode maps each row to named keys; disabling it keeps positional arrays.
- Dynamic typing can infer numbers and booleans to reduce manual cleanup.
Output and diagnostics
- Export as formatted JSON array or JSONL depending on your downstream workflow.
- Diagnostics include row count, detected delimiter, and parser error summaries.
- Use the report export when auditing malformed files or inconsistent rows.
FAQ
- Does this handle quoted values and embedded commas?
- Yes. The parser supports quoted fields, escaped quotes, and embedded delimiters.
- What is the difference between JSON and JSONL output?
- JSON output wraps all rows in an array, while JSONL outputs one JSON object per line.
- Can I inspect parse issues before exporting?
- Yes. The diagnostics section highlights parse errors by row and can be exported as a report.
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