Free tools that clean messy Excel and CSV lists right in your browser. Your file never leaves your computer — no upload, no account, no limits.
Formats US phone numbers as (212) 555-0142, standardizes addresses and removes duplicate rows — in one pass.
Get the toolShows duplicate rows side by side. You pick what gets deleted — nothing is removed automatically.
Get the toolTurns text into real dates, shows 1.23E+11 numbers in full, converts text numbers and fixes ZIP code zeros.
Get the toolDeletes empty rows and columns and fills blank cells with a value or the value above.
Get the toolUSPS-style addresses: "42 oak st., 10001 new york" becomes "42 Oak St, New York, NY 10001".
Get the toolCombines columns with any separator — First + Last Name = "John Smith". No formulas needed.
Get the toolTitle Case, UPPERCASE, lowercase or Sentence case — keeps McDonald, LLC and NY correct.
Get the toolRemoves extra and invisible spaces that break VLOOKUP, filters and duplicate checks.
Get the toolDownload the tool you need (one small file) or use it right on this website. Free, no sign-up.
Double-click the file — it opens in Chrome, Edge, Firefox or Safari. Then choose your Excel or CSV file.
Click Run, check the before/after examples and save. Your original file stays untouched on your PC.