Duplicate Line Remover
Paste a list and remove duplicate lines, keeping the first occurrence of each.
Removed 4 duplicate lines.
How to use this tool
Paste your list — email addresses, log lines, keywords, anything line-separated — into the Input box on the left; duplicates are removed instantly as you type, keeping only the first occurrence of each line. The Input and Result labels show a live count of total versus unique lines, and a message below the boxes tells you exactly how many duplicates were removed. Toggle Case-sensitive on if "Apple" and "apple" should count as different lines, or leave it off to treat them as the same.
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