CSV to JSON
Convert any CSV file to JSON format instantly. Perfect for developers, data analysts, and anyone working with APIs.
100% Private — Files stay in your browserInstant processing
Drop your CSV file here
Supports .csv files up to 5MB
How to csv to json
- Upload your JSON file.
- The file will be processed instantly in your browser — no server upload required.
- Preview the result in the data table below.
- Click "Download" to save the output file to your device.
CSVTools.dev provides free online tools for working with CSV and JSON data. All processing happens locally in your browser, ensuring your data remains completely private and secure. No registration required.