Remove Duplicate Lines Remove Duplicate Text Select All Text Clear All Text Remove Empty Lines Case Sensitive This tool will allow you to quickly remove duplicate lines of text. Simply paste your text in this window and select the "Remove Duplicate Lines" button above. By default, the check is not case sensitive. Please click the "Case Sensitive" checkbox if you would like to enable this. You can also check the "Remove Empty Lines" to remove any empty lines in between your text data. Quick Example: Select the "Remove Duplicate Lines" button and these three identical lines will be trimmed to one. Select the "Remove Duplicate Lines" button and these three identical lines will be trimmed to one. Select the "Remove Duplicate Lines" button and these three identical lines will be trimmed to one. No data is sent to our server, what you generate here is secure. Load File Save File