CSV to JSON Converter
Convert CSV data to JSON format
CSV to JSON Converter is a free online tool from BrowserUtils that convert csv data to json format. It runs entirely in your browser — your data never leaves your device. No account required.
How to use CSV to JSON Converter
- 1 Paste or type your input into the editor above.
- 2 The tool processes your data instantly — right in your browser, with nothing sent to a server.
- 3 Copy the result with one click or continue editing your input.
About CSV to JSON Converter
Free online CSV to JSON converter. Transform CSV spreadsheet data into a JSON array of objects. This tool runs entirely in your browser — your data is never sent to a server. Just paste your input, get instant results, and copy with one click. No sign-up or installation required.
CSV to JSON Converter specs
- Runtime
- 100% client-side (browser)
- Built on
- Native JavaScript JSON.parse / JSON.stringify (RFC 8259 compliant)
- Cost
- Free — no account, no rate limits, no usage caps
- Browser support
- Chrome 90+, Firefox 88+, Safari 14+, Edge 90+
- Part of
- 299 developer tools on BrowserUtils (100% client-side)
Questions
How do I convert a CSV file to JSON?
Paste your CSV data into the input field with the first row as column headers. The tool will automatically parse each row into a JSON object using the headers as keys.
Does the CSV to JSON converter handle quoted fields with commas?
Yes, the converter correctly parses CSV fields enclosed in double quotes, so commas inside quoted strings are treated as part of the value rather than field separators.
Can I convert an Excel spreadsheet to JSON?
Export your Excel file as CSV first, then paste the CSV data here. Most spreadsheet applications support exporting to CSV format.
What delimiter does the CSV parser expect?
The parser expects comma-separated values by default, which is the standard CSV format. Fields containing commas should be enclosed in double quotes.
Does the CSV to JSON converter run offline?
Yes, parsing and conversion happen entirely in your browser. No data is uploaded to any server, and the tool works without an internet connection after loading.
How are empty CSV cells represented in JSON?
Empty cells are typically converted to empty strings or null values in the JSON output, depending on the context. Numeric columns with empty cells will show empty strings rather than zero.
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