Turn a CSV or Excel file into a clean JSON array of objects in one click. Runs in your browser, keeps leading zeros, and checks your data for problems before you ship it to an API.
Drop a .csv, .tsv, .xlsx or .ods file. Delimiter and encoding are detected automatically.
Array of objects keyed by header (best for APIs) or array of arrays. See a live preview.
Download the .json instantly. Found duplicates or messy emails? Clean them with SheetFix first.
Upload your CSV, choose 'array of objects', and click Download JSON. Each row becomes an object with your column headers as keys.
Values are kept exactly as text, so IDs, postal codes and phone numbers with leading zeros stay intact.
Yes. XLSX, XLS, ODS and TSV files are supported as well as CSV.
Yes, the JSON download is free and needs no account.
No. The file is read and converted in your browser.