Example
[
{ "name": "Alice", "age": "30" },
{ "name": "Bob", "age": "25" }
]
CSV to JSON Converter
Convert CSV with or without headers into JSON instantly in your browser. Free online CSV to JSON converter with delimiter options — no data uploaded.
Enter the values below, then press Calculate (or press Enter). The calculator updates your results instantly. Try different values to see how your inputs change the outcome.
- CSV data — enter a value. A typical CSV data would be name,age Alice,30 Bob,25.
- Delimiter — enter a choice from the options.
- First row is headers — enter a yes/no option.
- Review your results — the key output is highlighted, with supporting figures below.
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Results
JSON output
| Detail | Value |
|---|---|
| Rows |
What is this calculator for?
Convert CSV data into a JSON array of objects, using the first row as headers or generating generic col0/col1 keys.
How to Use This Calculator
Enter the values below, then press Calculate (or press Enter). The calculator updates your results instantly. Try different values to see how your inputs change the outcome.
- CSV data — enter a value. A typical CSV data would be name,age Alice,30 Bob,25.
- Delimiter — enter a choice from the options.
- First row is headers — enter a yes/no option.
- Review your results — the key output is highlighted, with supporting figures below.
What You'll Need
- CSV data
- a value · required
- Delimiter
- a choice from the options (Comma (,), Semicolon (;), Pipe (|), Tab) · optional
- First row is headers
- a yes/no option · optional
About This Calculator
This CSV to JSON converter parses CSV (respecting quoted fields and escaped quotes) and produces a pretty-printed JSON array.
If the first row contains headers, each later row becomes an object keyed by those headers. Disable the headers option to get objects keyed generically as col0, col1, and so on. Comma, semicolon, pipe, and tab delimiters are supported.
Parsing runs locally in your browser — your data never leaves your device.
Worked Examples
Frequently Asked Questions
Are numeric values kept as strings?
Yes — cells are parsed as strings to avoid data loss (leading zeros, phone numbers, IDs). Use the JSON formatter or a typed converter if you need to coerce types.
Does it handle quoted commas inside fields?
Yes. Fields surrounded by double quotes can contain the delimiter, and doubled quotes inside are unescaped correctly.