About SheetSweep
Spreadsheet tools that stay in your browser
SheetSweep is a focused set of tools for cleaning, converting, validating, merging, splitting, and comparing spreadsheets. Everything runs entirely in your browser.
I’m Nos, the solo builder behind it. I made SheetSweep because I was tired of spreadsheet tools that upload your files to their servers or force you to create an account before doing simple work.
Try SheetSweep freePrivate by design. Your files never leave this browser tab — no uploads, no servers, no signup. What happens in your spreadsheet stays in your spreadsheet.
1Built for real spreadsheet workThe tools handle CSV, TSV, XLSX, and XLS files, with JSON support in the converter.
2Made by one personSheetSweep is designed and maintained by Nos, a solo builder focused on useful, straightforward tools.
3No upload. No signup.Your spreadsheets never leave your browser tab, and you do not need an account to use the free tools.