Free tool, no sign-up
Your student list is a mess. Clean it in one pass.
Paste the sheet you actually have, the one with six different phone formats, names in shouting capitals, and "No Email found" sitting where an email should be. This fixes what it can, shows you every single change it made, and hands you a second file listing the rows only a human can settle.
- Free, forever
- No account needed
- Nothing is uploaded
Paste your list
Open the sheet in Excel, select everything including the header row, copy, and paste below. Or upload a CSV. We never read .xlsx files and nothing leaves this page.
Which columns must be filled?
Tick the ones a row cannot do without. Any row missing one of these is sent to the attention file rather than the clean file.
Paste your list first and the column names appear here.
What to fix
Nothing is uploaded
The whole clean-up runs inside your own browser. Your student list is never sent to us, never stored on a server, and there is no account involved. Close the tab and it is gone.
This is real personal data about children. Keep the exported files somewhere only staff can reach, and delete the messy original once you are happy with the clean one.
What happened
Nothing read yet.
Duplicates to resolve
Grouped by matching phone number or by a near-identical name. We never merge or delete on your behalf, because only you know which record is the real one.
Every change we made
Before on the left, after on the right, per cell. Nothing is altered silently.
Rows needing a human
Download
The cleaned table
More free tools
Set your brand once, use it everywhere.
Every tool in the Toolkit picks up the logo, colours and contact details from your Brand Kit. Set it up once and you never type them again.