CSV to JSON

CSV to JSON Converter.

Convert CSV to JSON online — transform tabular data into JSON arrays or keyed objects instantly in your browser.

Your files never leave your device

Drop your CSV file here, or click to browse

CSV files · Processed locally · Max recommended 50 MB

Output format: Array of objects Keyed object

Convert CSV to JSON Online

Transform CSV data into JSON for APIs, web applications, and data pipelines. Unlike server-based converters, your data stays on your device. Learn more in our CSV vs JSON guide.

Frequently Asked Questions

What JSON formats are supported?

Array of objects (default) or keyed object format where the first column becomes the key.

Is the conversion done locally?

Yes. Your CSV is converted to JSON entirely in your browser.