Convert Data
About This Tool
This converter transforms data between CSV (Comma-Separated Values) and JSON (JavaScript Object Notation) formats.
CSV to JSON: Parses CSV data and converts each row into a JSON object. The first row can be used as property names (headers).
JSON to CSV: Takes an array of JSON objects and flattens them into CSV rows. All unique keys become column headers.
Features:
- Multiple delimiter support (comma, semicolon, tab, pipe)
- Handles quoted values with commas inside
- Optional nested object flattening
- Auto-detection of number and boolean types
- Download converted data as a file
All processing happens in your browser. Your data is never sent to any server.
Privacy & Limitations
- All calculations run entirely in your browser -- nothing is sent to any server.
- Results are computed locally and should be verified for critical applications.
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CSV JSON Converter FAQ
What is CSV JSON Converter?
CSV JSON Converter is a free developer tools tool that helps you Convert CSV to JSON and JSON to CSV.
How do I use CSV JSON Converter?
Enter your input values, review the calculated output, and adjust inputs until you reach the result you need. The result updates in your browser.
Is CSV JSON Converter private?
Yes. Calculations run locally in your browser. Inputs are not uploaded to a server by default, and refreshing the page clears session data.
Does CSV JSON Converter require an account or installation?
No. You can use this tool directly in your browser without sign-up or software installation.
How accurate are results from CSV JSON Converter?
This tool applies standard formulas or deterministic processing logic for estimates. For medical, legal, tax, or investment decisions, verify with a qualified professional.
Can I save or share outputs from CSV JSON Converter?
You can bookmark this page and copy outputs manually. Results are not persisted in your account and are typically not embedded in the URL.