Free online data converters
Move tables between Excel, CSV and JSON without installing anything. Choose the sheet, delimiter, encoding and header row, and download a clean file ready for a database, an API or a spreadsheet.
New
Excel and CSV
Move data between sheets and plain text.
XLS, XLSX ↔ CSVOpen tool
New
CSV and JSON
Structured data, in the shape you need.
CSV ↔ JSONOpen tool
GOOD TO KNOW
Data tools: common questions
A few answers to keep things simple.
Do my spreadsheets get uploaded?+
No. Both converters work in your browser, so your data stays on your device. Files are uploaded only if you switch on server processing, and even then nothing is stored.
What is the difference between CSV and JSON?+
CSV is a plain table of rows and columns, ideal for spreadsheets. JSON stores records as key–value objects, the format most web APIs and apps use.