CSV ↔ JSON Converter

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Convert CSV to JSON and back — RFC 4180 compliant, no uploads.

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See how it works

Watch a quick simulation of this tool in action — no file needed.

How to use CSV ↔ JSON Converter

Follow these steps — everything happens instantly in your browser.

  1. 1

    Step 1. Pick the direction: CSV → JSON or JSON → CSV.

  2. 2

    Step 2. Optionally change the delimiter (comma, semicolon, tab, pipe).

  3. 3

    Step 3. Paste your input and click Convert.

  4. 4

    Step 4. Copy the output — error messages show line and column.

Why use this tool

Frequently asked questions

Everything you might want to know about csv ↔ json converter.