Office · Data
Contact List Cleaner
Paste a messy pile of names, emails and phone numbers. Get back one tidy, deduplicated list. Cleaning happens in your browser — your contacts never leave your machine.
When would I use this?
Someone hands you “the mailing list”: half a spreadsheet export, a few lines copied from emails, and a colleague’s phone notes — SHOUTING names, Last, First entries, the same person in there three times with three phone formats. Paste the lot here and it becomes one clean table: duplicates merged, names properly cased and split, phones tidied — ready to download as a CSV or paste straight into a BCC field. Nothing is uploaded anywhere; it all happens on your computer.
01 Paste your messy list
Runs entirely in your browser — nothing is uploaded.
…or drop a file here, or click to browse
.txt or .csv? · read locally, never uploaded
02 Options
03 Clean contacts
Paste contacts above — the cleaned list appears here automatically.
Nothing to clean yet. Paste a list, drop a file, or hit “Try an example”.
Excel-friendly adds a UTF-8 BOM? so accents survive the trip. “Copy emails only” gives a deduped, comma-separated list ready for a BCC field.