Nothing ever leaves your device

Free Excel & spreadsheet tools, no uploads required

Convert, merge, split, and clean up spreadsheets entirely in your browser. Nothing is sent to a server, so there's no file size limit and no subscription.

Excel tools

CSV to Excel

Convert

Convert a CSV file into a formatted Excel (.xlsx) spreadsheet.

Excel to CSV

Convert

Convert an Excel spreadsheet into a plain CSV file.

JSON to Excel

Convert

Convert a JSON array of records into an Excel spreadsheet.

Excel to JSON

Convert

Convert an Excel spreadsheet's rows into a JSON array.

Excel to PDF

Convert

Convert an Excel spreadsheet into a printable PDF table.

Merge Excel Files

Organize

Combine multiple Excel or CSV files into one workbook, one sheet per file.

Split Excel File

Organize

Split a large spreadsheet into multiple smaller files by row count.

Remove Duplicate Rows

Clean

Find and remove duplicate rows from a spreadsheet.

Compare Excel Files

Clean

Compare two spreadsheets and see which rows differ between them.