Remove Duplicate Lines
Delete repeated lines in your content.
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See allFrequently asked questions
- Is the Remove Duplicate Lines free to use?
- Yes. The Remove Duplicate Lines is completely free with no sign-up, no usage limits, and no watermarks.
- Is my text sent to a server?
- No. The Remove Duplicate Lines runs entirely in your browser using JavaScript — your text never leaves your device, so it is safe to use with private or sensitive content.
- What does the Remove Duplicate Lines do?
- Free online duplicate line remover — keep only the first occurrence of each line, with case-insensitive and trim options.
- Does the Remove Duplicate Lines work on mobile?
- Yes. It works in any modern web browser on desktop, tablet, and mobile — there is nothing to install.