Cheetset

CSV <-> JSON Converter

Convert CSV to JSON and JSON to CSV instantly.

CSVJSON
Result
📖How to Convert CSV & JSON
1Select Mode
Choose 'CSV to JSON' or 'JSON to CSV' depending on your need.
2Input Data
Paste your data into the left input area.
3Configure
For CSV, check 'Header JSON' if the first row contains column names.
4Convert
Click 'Convert' to generate the output in the right panel.
💡Common Use Cases
Converting Excel data (CSV) for use in web APIs (JSON).
Flattening JSON API responses into CSV for spreadsheet analysis.
Migrating data between different systems.
❓FAQ
Is my data sent to a server?
No, all conversions happen entirely within your browser using JavaScript. Your data never leaves your device.
Can it handle large files?
Yes, practically limited only by your browser's memory, but works well for most typical data files.
Frequently Used Together
JSON Formatter
Format, validate, and minify your JSON data.
UUID Generator
Generate and copy secure, unique UUID v4 strings in bulk.
JWT Decoder
Decode JWTs instantly in your browser. No server-side processing for your security.
Unix Timestamp Converter
Convert Unix timestamps to human-readable dates and vice versa.
CSV <-> JSON Converter