CRM CSV Cleaner
Clean, review and deduplicate CRM contact exports directly in your browser.
Your file stays on your device.
Drop your CSV here
orCSV · Max 10 MB
Choose a CSV to analyze its structure.
Review data health, apply safe fixes and choose which duplicate rows to keep.
Your file stays on your device. Analysis runs in browser memory. No data is uploaded or stored by this app.
How it works
Analyze locally, apply safe fixes, review duplicates and download a cleaned copy.
- 01
Add your CSV.
- 02
Analyze data health and review safe fixes.
- 03
Review duplicates and download your cleaned CSV.
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A few useful answers
Can I clean a CSV today?
Yes. Analyze your CSV, apply conservative email and name suggestions, review duplicate groups and download a cleaned copy. Your original file stays unchanged.
Will my contacts be uploaded?
No. Files are read and analyzed only in browser memory on your device. No CSV data is uploaded, saved or sent to external services.
Which files are supported?
Select one UTF-8 CSV file up to 10 MB, with a header row. Commas, semicolons, quoted values and Windows or Unix line endings are supported.