Developer Tools
CSV to JSON Converter
Parse CSV with quoted fields and export rows as JSON objects or arrays.
✓ Free
✓ No account
◉ Runs on this device
Developer Tools
Powering up the tool…
TOOL CSV-TO-JSON-
What this tool does
About the csv to json converter
Choose delimiter and header handling, preview inferred columns and keep all values as strings unless you explicitly enable type inference.
How to use it
- Paste the CSV or upload the file.
- Pick the delimiter and whether the first row is headers.
- Preview the inferred columns; enable type inference only if you want numbers as numbers.
- Copy or download the JSON output.
Useful for
- Turn a spreadsheet export into JSON a script or API can consume.
- Convert semicolon or tab-delimited files that naive converters mangle.
- Prepare fixture data for tests from a hand-maintained CSV.
Straight answers
CSV to JSON Converter FAQ
Why are all my values strings?
By default, deliberately: “00423” becoming 423 has ruined many an ID column. Enable type inference explicitly when numeric conversion is what you actually want.
Can it handle quoted fields with commas inside?
Yes — the parser follows standard CSV quoting rules, which is precisely where split-on-comma home-brew scripts fall over.
Does my file get uploaded?
No. The file is read and parsed locally in your browser.