Browser utility · No upload
CSV to JSON Converter
Convert CSV to JSON or JSON back to CSV — free, private, and instant.
Runs locally in your browser — your input is never uploaded or stored.
About this tool
CSV to JSON Converter lets you convert CSV to JSON or JSON back to CSV without installing an app or creating an account. Choose comma, tab, pipe, or semicolon delimiters and preserve quoted field values.
Turn a spreadsheet export into JSON for an API or config file, or flatten a JSON array back into CSV for Excel and Google Sheets.
How it works
- Enter or choose your values
- Review the instant result
- Copy or download the result
Frequently asked questions
How do I use CSV to JSON Converter?
Enter or choose your input in the tool above. The result updates immediately or appears when you select the action, ready to copy or download.
What if my CSV values contain commas?
Quoted fields are preserved, so values that contain commas, quotes, or line breaks convert correctly rather than splitting into extra columns.
Is CSV to JSON Converter free, and is my data private?
Yes. CSV to JSON Converter is free with no account or watermark, and it runs entirely in your browser so your input is never uploaded, stored, or shared.
Does it work on phones and tablets?
Yes. It works in current browsers on Android, iPhone, iPad, Windows, macOS, and Linux.