Member record check

Open a member CSV and list possible duplicate pairs and stale records, with the reason and score for each. The sample list is synthetic. Serve this folder (see README.md) instead of double-clicking the page, so the sample can load.

Your file never leaves this tab. This page reads the CSV in your browser and uploads nothing. It reads up to 20,000 records and 5 MB. It lists records for a person to review. It never merges or deletes. Reload the page to forget the file.

Needs these column names in the first row: member_id, first_name, last_name, email, phone, street, zip, last_activity, last_reviewed. Dates look like 2026-09-30. Other columns are ignored.

Settings you choose

These numbers are examples, not standards. Results update when you change a setting. The sample uses 4 October 2026 as its as-of date, so its result stays the same.

Loading the sample list.