CSV Deduplicator

Flekify

Data

CSV Deduplicator

Remove duplicate CSV rows locally.

Processed locally in your browser.

Case-sensitiveTrim before comparing

Keep the last matching row

Delimiter

Input CSV

Duplicate inspection

Only show duplicate groups

Choose columns to compare or use all columns, then remove repeated records.

The first matching row is kept by default. The header is not counted as a data row.

Your data stays in this browser. Nothing is sent to a server.

CSV Viewer

Preview CSV headers and rows locally.

CSV to JSON

Convert header-based CSV to a JSON array locally.

JSON to CSV

Convert an array of JSON objects to CSV locally.