CSV to JSON Converter

Paste a CSV and download a clean JSON file, with headers preserved. Utilisation gratuite sans compte, adresse e-mail ni paiement. Le résultat est téléchargé immédiatement.

Paste a CSV and download a clean JSON file, with headers preserved.

Convert CSV to JSON in one click. Choose your delimiter, decide whether the first row is a header, and pick array-of-objects or array-of-arrays output. Live preview, clean.json download.

Category: Text
Availability: Free to use without an account, email address, subscription, or payment.
Input: Entered in the browser

How it works

Paste your CSV into the editor.
Pick your delimiter and whether the first row is a header.
Process and download the.json file.

Use cases

Convert a CSV export from a spreadsheet to JSON for an API request.
Turn a downloaded CSV report into JSON for a Node script.
Clean up a CSV pasted from a database tool and ship it as JSON.
Prep a CSV file for import into a NoSQL store that expects JSON.

Frequently asked questions

Does it handle quoted fields with commas inside?

Yes. The parser understands quoted fields, escaped quotes (""), and both LF and CRLF line endings, so values containing commas or newlines are preserved.

Can I use a tab or semicolon delimiter?

Yes. Pick Tab, Semicolon, Pipe, or define your own single character on the Options panel.

Array of objects vs array of arrays, which should I pick?

Array of objects uses the header row as keys (most APIs and JS code expects this). Array of arrays is just the raw rows, useful when you don't have headers or want positional data.

Is there a size limit?

Up to 2 MB of CSV per conversion, comfortably tens of thousands of rows. Split larger files into separate runs.

Using the interactive tool

Open the canonical HTML page to provide input and generate or download a result. This Markdown alternate contains the complete descriptive and instructional content, but it does not execute the interactive interface.