ToolHavenHub
Data Studio
ToolHavenHub · Data Studio

Convert yourdata.

Convert CSV to JSON and JSON to CSV instantly — right in your browser. Great for spreadsheets, APIs and data cleanup. Nothing is uploaded.

Open tool →How it works
CSV ⇄ JSONBoth Ways
InstantIn Browser
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The Tool

CSV ⇄ JSON converter

Paste CSV or JSON and convert.

Free Online CSV to JSON & JSON to CSV Converter

This data converter turns spreadsheet-style CSV into structured JSON, and JSON arrays back into CSV — ideal for importing/exporting data, feeding APIs, or cleaning up datasets. It understands quoted fields and commas inside values, and produces neatly indented JSON output.

All conversion happens locally in your browser, so your data stays private. Free, mobile friendly and no signup.

How to use

  1. Choose CSV to JSON or JSON to CSV.
  2. Paste your data into the input box.
  3. Click Convert and copy the result.

Frequently Asked Questions

Does it handle quoted CSV fields?
Yes, it supports quotes and commas inside quoted values.
What JSON shape is needed for JSON to CSV?
An array of flat objects, e.g. [{"name":"Asha","age":30}].
Is my data uploaded?
No, everything runs in your browser.
Is it free?
Yes, 100% free.