Duplicate Line Remover
Remove duplicate lines while keeping first or last occurrences.
Everything is processed in your browser. Nothing you enter is sent anywhere.
Tool
Lines
Remove duplicate lines privately in your browser.
Paste a list
Keep the first or last occurrence of each duplicate line.
Why Dockzio?
Simple tools that respect your time and your privacy.
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Open a tool and get to work immediately.
Private by design
Processing happens locally in your browser whenever possible.
Beautifully built
Clean, fast interfaces designed for everyday productivity.
About the duplicate line remover
Remove repeated lines from lists, logs, or exports while keeping either the first or last occurrence.
Matching options
Optional trim and case-insensitive matching help when source data is messy.
Privacy first
All processing runs locally in your browser. Nothing you enter is sent to a Dockzio server.
FAQ
Quick answers to common questions.