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Bulk Data Cleaner

Clean, filter and deduplicate spreadsheet data with your own rules — keep only what you need.

What it does

  • Keep or drop selected columns
  • Row filters with contains, equals, gt, lt, empty and more
  • Deduplicate by chosen column(s)
  • Drop empty rows and trim whitespace
  • Download the cleaned result as CSV

How it works

  1. 1Upload a spreadsheet (XLSX or CSV).
  2. 2Choose which columns to keep.
  3. 3Add row filters and pick a dedupe column.
  4. 4Clean, preview, and download the result.

Use cases

  • Removing duplicates from a contact list
  • Filtering rows that meet a condition before import
  • Trimming and normalising messy exported data

Try Bulk Data Cleaner

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Frequently asked questions

What does the Data Cleaner accept and export?
It accepts XLSX, XLS or CSV files up to 8 MB and exports the cleaned rows as CSV.
Does the original file get changed?
No. You download a cleaned copy; your uploaded file is processed and then discarded.
Which row is kept when duplicates are removed?
The first row for each unique combination of the selected deduplication columns is kept; later matches are removed.