This free online CSV to JSON converter lets you change csv spreadsheet files into json data format right inside your web browser. There is nothing to install, no account to create and no watermark added to your result.
Unlike most converters, EverythingConverter never uploads your files to a server. The entire CSV to JSON conversion happens locally on your own device, which means your documents and media stay completely private and the process works even on slow connections.
How to convert CSV to JSON
- Click the upload area above or drag and drop your CSV file into it. You can also browse and pick a file from your device.
- EverythingConverter reads the file directly in your browser and starts to convert it to JSON automatically. Nothing is sent to any server.
- When the conversion finishes, your new JSON file downloads right away. You can convert another file at any time, completely free.
CSV and JSON explained
What is a CSV file?
CSV (Comma Separated Values) is a simple text format for tabular data. Almost every spreadsheet and database can read and write CSV, which makes it the lingua franca of data exchange.
What is a JSON file?
JSON is the standard data format for the web and APIs. It stores structured data as human readable key value pairs and arrays, and is supported by every modern programming language.
Convert CSV to JSON on any device
You can convert CSV to JSON on Windows, Mac, Linux, Chromebook, Android and iPhone, straight from Chrome, Safari, Edge or Firefox. There is no app to install and no account to create. Because the conversion runs on your own device, it also works offline once the page has loaded, and you can convert as many files as you want.
Frequently asked questions
How do I convert CSV to JSON for free?
Upload your CSV file to the converter above and it will be turned into a JSON file automatically. The tool is completely free, with no limits on how many files you can convert and no watermark on the result.
Is it safe to convert CSV to JSON here?
Yes. EverythingConverter converts your CSV file entirely inside your browser. Your file is never uploaded to a server, so no one but you ever has access to it. This makes it one of the most private ways to convert CSV to JSON online.
Can I convert multiple CSV files at once?
Yes. You can drop or select as many CSV files as you like and they are all converted to JSON in one batch, then bundled into a single ZIP download. It is the fastest way to bulk convert CSV to JSON.
Do I need to install any software?
No. The CSV to JSON converter runs in any modern web browser on Windows, macOS, Linux, Android and iOS. There is nothing to download or install.
Is there a file size limit?
Because the conversion runs on your own device, the practical limit depends on your computer's memory rather than a server quota. Most everyday CSV files convert instantly, and there is no artificial cap.
How long does it take to convert CSV to JSON?
For typical files it is almost instant, since the conversion happens locally with no upload or download wait. Large media files take a little longer because your device does the encoding, but there is never a queue.
What is the difference between CSV and JSON?
CSV (Comma Separated Values) is a simple text format for tabular data. Almost every spreadsheet and database can read and write CSV, which makes it the lingua franca of data exchange. JSON is the standard data format for the web and APIs. It stores structured data as human readable key value pairs and arrays, and is supported by every modern programming language. Converting CSV to JSON gives you the strengths of the JSON format for your specific use case.