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CSV ↔ JSON Converter

Detect delimiters, infer simple types and preserve CSV escaping.

Local execution receiptinput path disclosedTool content stays out of MonoTools URLs and API requests.
Working input
Browser memory
Cross-tool handoff
Session only · 10 min
URL payload
Never
Export
Explicit action

Verify it: open DevTools Network, clear the log, use the tool, then inspect fetch/XHR requests. Page assets and optional aggregate analytics may use the network; tool input is not included.

Full privacy model
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How to use

  1. 01Choose CSV -> JSON or JSON -> CSV.
  2. 02Paste your source data and adjust the delimiter when needed.
  3. 03Copy the converted output from the right panel.
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FAQ

Does it handle quoted CSV fields?
Yes. The parser supports quoted cells, escaped quotes and multi-character rows with common delimiters.
Is the file uploaded?
No. Conversion runs in your browser memory and never sends data to a server.
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