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CSV ⇄ JSON Converter

Convert CSV to JSON or JSON to CSV. Runs entirely in your browser — nothing is uploaded.

Click to upload a file, or paste text below

.csv file

How to use

Choose CSV → JSON or JSON → CSV.
Upload a file or paste your data directly into the box.
Click Convert, then copy or download the result.

🔒 Your data is processed entirely in your browser. It is never uploaded to any server. For JSON → CSV, your JSON should be an array of objects (or a single object).