How it works
- Input. Paste your content or drop a supported file.
- Options. Adjust the options for the result you need.
- Process. Run the tool, then copy or download the result.
Prepare tables
CSV → JSON
Convert CSV tables into ready-to-use JSON.
TXT, CSV, TSV, JSON or MD · UTF-8 · up to 10 MiB. Each input, including files: up to 500,000 code points.
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Prepare tables
How it works: CSV → JSON
Convert a simple CSV table into a JSON array directly in the browser. Column headers become object keys and each data row becomes one object.
Input → Result
Input
id,code 1,BR 2,PT
Result
[
{
"id": "1",
"code": "BR"
},
{
"id": "2",
"code": "PT"
}
]Common uses
- Prepare sample data for an API
- Move spreadsheet rows into a web project
- Inspect a CSV export as structured data
Formats and limits
- With headers enabled, each header must be nonempty and unique. Invalid quoting and inconsistent field counts stop conversion.
- Cells remain strings: 007 stays "007". No automatic date, boolean or numeric type inference is performed.
2026-10-07