CSV converter

CSV to JSON Converter

Turn spreadsheet and database exports into developer-friendly JSON objects while preserving the original column names.

No upload Free to use Works on mobile

Data tool

CSV to JSON

CSV data 0 characters

Delimiter Infer numbers and booleans

0 results

The first row becomes the object property names.

Use auto detection or select comma, semicolon, tab, or pipe.

Each remaining row becomes an object in a JSON array.

Convert spreadsheet samples into JSON request data.

Prepare records for demos and local applications.

Inspect tabular exports as structured objects.

Is CSV to JSON free to use? +

Yes. CSV to JSON is free to use without an account or usage meter.

Is my data uploaded or stored? +

No. The processing for this tool runs locally in your browser. Entered content is not sent to our server.

Are numbers and booleans converted automatically? +

Optional type inference can convert obvious numbers, true, false, and null values; otherwise values remain strings.

Keep working

Convert a JSON array of objects into CSV with a combined header set and correctly escaped values.

Compare CSV data by ID, email, SKU, or another key. Find added, removed, and changed rows even when row order differs.

Extract one column from CSV, TSV, semicolon, or pipe-delimited data online. Select by header name or column number with quoted-field support.

Validate JSON online and locate syntax errors with line and column details. Format valid JSON without uploading your data.