Your data stays put
Files are read and written in this tab. Nothing is sent to a server, so there is no upload limit and nothing to delete afterwards.
Everything runs in this tab — nothing is uploaded
Merge, split, clean and convert spreadsheets without installing anything. Every tool runs inside this page, so your files never leave your device.
Pick the job you need doing. Each one opens ready for a file.
Press Ctrl K anywhere to jump straight to one
Remove duplicate rows from your Excel files
Open toolCombine multiple Excel files into one workbook, one sheet per file
Open toolSplit a workbook into one file per worksheet
Open toolSplit one sheet into a separate file for each value in a column
Open toolConvert Excel files to JSON or CSV
Open toolStandardize text case across your spreadsheets
Open toolHave an Excel challenge? Tell us what you need and we will consider building it.
The same jobs, without the upload, the sign-up or the wait.
Files are read and written in this tab. Nothing is sent to a server, so there is no upload limit and nothing to delete afterwards.
Jobs that need a helper column, a VBA macro or a careful copy-paste-values step become a drop, a click and a download.
Once a tool page has loaded, it keeps working with no connection at all — handy on a locked-down machine or a plane.