DMALLX

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Tool

CSV dedupe & cleaner

Pick a key column, remove or mark duplicates, and export a cleaned CSV. No upload.

Paste CSV

First row is header Key column index Trim Lowercase key

Output preview

Cleaning an email column?

Use the email-specific cleaner for syntax checks, or the Gumroad kit for a full hygiene checklist.

Email list cleaner →

Privacy: Runs locally. Nothing uploaded.

DMALLX
Free Data Cleaning Tools. Templates on Gumroad. Bulk delivery via Upwork in 24h.

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