CSV Duplicate Row Remover

Remove exact duplicate records locally with a selectable one-character delimiter while keeping the first row.

DUPLICATE REVIEW · LOCAL CSV STUDIO

Keep the first. Review the repeats.

Remove exact duplicate records locally with a selectable one-character delimiter while keeping the first row.

Source rows4 parsed · 24 characters

REPEAT DETECTOR

Keep the first copy of each exact row.

1duplicates found

01id | nameHEADER

021 | AnaKEEP FIRST

032 | BoKEEP FIRST

041 | AnaDUPLICATE

Input delimiterOne character · comma by default · fields are compared exactly

✓

Comparison is exact after CSV parsing: capitalization and spaces matter. Header row is retained once.

02 / RESULT

Unique records

18 output characters

1 duplicate rows removed

Everything stays in this tab. Quoted fields are parsed before changes; review the transformed sample before importing it into another system.

Need a feature from the original version? Open the current ECECH tool

How this app works

Paste a CSV sample, choose the operation’s small set of controls, and review the converted output. Quoted delimiters are parsed before rows or columns are changed. Processing stays in this browser.