DevTidy › Convert › CSV to JSON

CSV to JSON Converter

Paste CSV with a header row and get a JSON array, one object per row. Quoted fields, embedded commas and newlines are handled. 🔒 Runs locally. Nothing uploaded.

Output

Numbers, true/false and null are typed automatically; untick Detect types to keep everything as strings.

Frequently asked questions

Is my data uploaded?

No. DevTidy runs entirely in your browser. Your input is processed on your device in a background Web Worker and never sent to a server, so it is safe for API keys, customer data and production configs.

Can it handle large files?

Yes. Heavy work runs in a Web Worker so the page stays responsive, and there is no upload size limit. Multi-megabyte inputs are fine; the practical limit is your device memory.

Related tools

JSON to CSVJSON FormatterYAML to JSON