Free · no sign-up · browser-based
CSV to JSON Converter
Convert CSV to JSON or JSON arrays to CSV without uploading your data.
Local CSV and JSON conversion
The CSV parser supports quoted fields, commas, and line breaks. The first CSV row becomes the JSON object keys. Your data stays in the browser.
Example
A CSV header of name,score followed by Alex,10 becomes one JSON object.
Privacy
Tool inputs and files are processed in this browser and are not saved to a Modu Tools account. Ordinary site analytics or ads may load separately.
Limitations
Complex spreadsheets, formulas, encodings, and schema types may need a dedicated data tool.
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