JSON ⇄ CSV Converter
Convert in either direction. Nested JSON objects are flattened into dot-separated columns. Your data never leaves your browser.
id,name,role,location.city,location.remote,skills 1,Ada,Data Analyst,London,true,SQL; Python 2,Grace,BI Developer,Austin,false,Power BI; DAX
How to use the JSON ⇄ CSV Converter
- 1Choose JSON → CSV or CSV → JSON.
- 2Paste your data into the input box.
- 3Copy the result or download it as a file.
Frequently asked questions
How are nested JSON objects converted?
They're flattened into dot-separated column names, so {"location": {"city": "London"}} becomes a location.city column. Arrays of simple values are joined with semicolons.
Can it turn dot columns back into nested JSON?
Yes — with 'Nest dot.columns' on, a location.city column becomes a nested object when converting CSV to JSON.
Is my data uploaded?
No. It runs entirely in your browser — nothing you paste or type is uploaded to our servers or stored.
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