JSON & spreadsheets.Convert cleanly.
Convert JSON to Excel or CSV, or turn XLSX, XLS and CSV spreadsheets into structured JSON directly in your browser.
JSON to Excel
Format your JSON, generate an XLSX preview, then download it when you are satisfied.
JSON input
Preview before download
Nothing is downloaded when you convert. The generated spreadsheet appears below first.
XLSX, XLS & CSV
Legacy XLS, modern XLSX and CSV files are all handled directly in the browser.
Structured JSON
Headers are normalized, duplicate columns are preserved, empty rows are removed and JSON-like cells can be restored.
Private processing
Your files are processed locally in your browser and are not sent to a conversion server.
Your files stay on your device during conversion.