CSV to JSON Converter
Paste your CSV data and convert it to JSON instantly
Frequently Asked Questions
What delimiters does this CSV to JSON converter support? +
The converter auto-detects commas, tabs, and semicolons as delimiters. It analyzes your data and picks the most likely delimiter automatically, or you can manually select one from the dropdown.
Does this tool send my CSV data to a server? +
No. All conversion happens entirely in your browser using JavaScript. Your data never leaves your device, making it safe for sensitive or private information.
What does "use first row as keys" mean? +
When enabled, the first row of your CSV is treated as column headers. Each subsequent row becomes a JSON object with those headers as property names. When disabled, each row becomes a simple array of values.
Can I convert CSV files with quoted fields? +
Yes. The parser correctly handles quoted fields, including fields that contain commas, newlines, or escaped quotes within double-quoted strings, following the RFC 4180 CSV standard.
Is there a size limit for the CSV data? +
There is no hard limit enforced by the tool. Since processing happens in your browser, very large files (over 50MB) may be slow depending on your device. For typical use, it handles thousands of rows instantly.