FREE · DEVELOPER TOOLS
CSV ↔ JSON Converter.
Convert CSV with headers to JSON, or a JSON object array to CSV.
How to use CSV ↔ JSON Converter
Choose the direction, paste data, then convert. CSV mode expects a header row.
How it works
CSV fields can contain commas, quotes or line breaks when quoted properly. Values remain strings when converting CSV to JSON. CSV export protects cells starting with spreadsheet formula characters to reduce accidental formula execution.
Example
name,age followed by Alex,30 → [{"name":"Alex","age":"30"}].
Questions about CSV ↔ JSON Converter
Is CSV ↔ JSON Converter free, and do I need an account?
Yes. This tool is free to use in your browser without an account. Processing takes place on your device.
What are the limits and what should I check?
Maximum 200,000 characters and 5,000 rows. JSON input must be an array of flat objects. Review the result before using it in your work.
Is my input sent to a server?
Your input is processed in your browser and is not uploaded by this tool. Files and pasted text are cleared when the page is refreshed. Normal website requests are still required to load the page and its libraries. Read the privacy explanation.