Marketing · Tool
CSV Audience List Cleaner
Normalize headers, trim spaces, and dedupe rows in pasted CSV.
Cleaned output
Paste a CSV above. Headers will be normalized, whitespace trimmed, and exact duplicate rows removed.
About this tool
Audience uploads fail on whitespace, mismatched headers, and duplicate rows. Paste a CSV and this cleaner normalizes headers, trims every cell, and removes exact-duplicate rows — ready to upload to Google, Meta, or your CRM.
How to use it
- 1Paste your raw CSV into the editor.
- 2Choose which columns to treat as the dedupe key.
- 3Copy or download the cleaned CSV.