CSV to JSON Converter
Convert CSV to JSON and JSON back to CSV, with delimiter detection, quoted fields and type inference.
Otherwise columns are named column_1, column_2…
Turns 42 and true into real JSON values.
CSV input
JSON output
Output appears here as you paste.
About the csv to json converter
Handles real-world CSV properly: quoted fields containing commas, escaped quotes and embedded newlines all survive the conversion. The delimiter is detected automatically or you can set it yourself, and optional type inference turns numeric and boolean columns into real JSON types instead of strings. Going the other way, JSON arrays become CSV with headers derived from the keys, and a table preview shows the parsed result before you copy it.
This tool runs entirely in your browser. Nothing you type is uploaded, and it keeps working with no connection at all — including as an installed app.