Droy37 Tools

Private by design

Small tools.
Local data.
Less busywork.

Focused utilities for awkward data jobs—built to work locally, explain what they change, and stay out of your way.

Try Contact CSV Doctor LiteView source

Available now · Free Lite edition

Contact CSV Doctor

Clean mismatched contact fields, normalize email and phone formatting, and merge exact duplicates before importing into Google Contacts, Outlook, or another CRM.

The tool is a self-contained HTML file. Your contact data is processed in browser memory and never sent to us.

Clean up to 25 contacts free →
Contact CSV Doctor interface showing contact cleanup results

Practical guides

Fix the file before the import

Outlook

Fix Outlook CSV import errors

Check encoding, headers, delimiters, malformed rows, and duplicate behavior.

 Data cleanup

Deduplicate a contact CSV safely

Use normalized email and phone values without uploading a customer list.

 Migration

Move Google Contacts to Outlook

Export, inspect, clean, test, and import without losing track of the original.