CSV to JSON Converter
Convert CSV data to JSON format with automatic delimiter detection, header row support, and type inference. All processing happens in your browser.
CSV Input
JSON Output
How to Use the CSV to JSON Converter
Paste or type your CSV data into the CSV Input field. The converter processes your data in real time and displays the result in the JSON Output panel. Click Copy to copy the JSON to your clipboard.
Options
- Header Row — When enabled, the first row is used as JSON object keys. Disable this to get arrays instead of objects.
- Type Inference — When enabled, numbers, booleans, and null values are automatically converted to their native JSON types. Disable to keep all values as strings.
Features
- Automatic delimiter detection (comma, tab, semicolon, pipe)
- Header row support — outputs objects or arrays
- Type inference for numbers, booleans, and nulls
- Row count badge shows how many records were parsed
- Handles up to 1MB of CSV data
- 100% client-side — your data never leaves the browser
FAQ
What delimiters are supported?
The converter automatically detects commas, tabs, semicolons, and pipes. You do not need to specify the delimiter manually — PapaParse handles detection for you.
What does the Header Row option do?
When Header Row is enabled, the first row of your CSV is treated as field names and each subsequent row becomes a JSON object with those keys. When disabled, each row is output as an array of values.
Is my data safe?
Yes. All conversion happens entirely in your browser using the PapaParse library. No data is sent to any server.