All tools
Pick the task you need. Every tool is free, with no sign-up and nothing to install.
Clean up
Finds identical rows and keeps just one.
Deletes rows that are empty or contain only whitespace.
Cleans up leading/trailing spaces, repeated spaces, and line breaks in one pass.
Hides part of a name, phone number, or email before you share a file.
Makes phone numbers and dates consistent across a column.
Merge & split
Combines multiple Excel/CSV files into one sheet or one workbook.
Creates one sheet per value in a column (department, region, etc).
Compares two files and finds the rows that only appear in one.
Splits one column into several, or joins several columns into one.
Convert
Converts CSV to Excel while keeping leading zeros and long numbers intact.
Converts Excel to a clean UTF-8 CSV that won't show garbled text.
Re-saves a garbled CSV so it opens correctly in Excel.
Saves a CSV in the legacy encoding (Windows-1252, etc.) an older system needs.