Convert CSV to JSON online in seconds. Paste text or drop a file, preview every column, and copy or download clean JSON without uploading your data.
Your CSV stays on your device and is never uploaded.
Paste comma-separated values into the input editor or upload a .csv file. This online CSV to JSON converter recognizes headers and common delimiters, builds a preview, and turns each row into a clean JSON object. Adjust the options whenever your data uses tabs, semicolons, pipes, or no header row.
Automatically identify commas, tabs, semicolons and pipes, or choose the exact delimiter yourself.
Handle quoted fields, multiline values and duplicate headers while optionally detecting numbers, booleans and null.
Files are processed completely in your browser. Nothing is sent to a server, saved or shared.
Paste CSV text or choose a CSV file, review the detected delimiter and header options, then select Convert to JSON. Copy the output or download it as a .json file.
Yes. Quoted fields may contain commas or other delimiters, escaped double quotes and line breaks. These values remain together during conversion.
Yes. Auto detection supports comma, tab, semicolon and pipe delimiters. You can also select any of these separators manually.
Turn off First row is headers. The converter will output each row as a JSON array instead of creating objects with property names.
Values with leading zeros remain strings. Standard numbers, true, false and null can be detected automatically, or you can turn type detection off to keep every value as text.
No. Parsing, previewing and conversion happen locally in your browser. Your data never leaves your device.
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