Duplicate Line Remover
Remove duplicate lines from text lists.
Remove duplicate lines from text lists.
Remove duplicate lines from text lists. This page is designed for people who need to remove repeated lines from text. Use the controls above to complete the task and review the result before using it elsewhere.
Try “apple, banana, apple” on separate lines and confirm only the repeated line is removed.
Case, spaces, and line endings can determine whether two lines count as duplicates; retain the source for comparison. Supported formats, processing limits, and output quality depend on the controls and services available on this page. If an operation fails, try a small supported sample and read any error message rather than assuming the file was processed.
Before using private, confidential, or business-sensitive material, review the processing note shown by this tool and the ArfaAI Privacy Policy. Some tools may use browser features, external libraries, or third-party services; do not assume every workflow is local-only. Keep an original copy of important files until you have verified the result.
Use the example above with a small input, compare the result with the original, and reopen any downloaded file in a compatible application.
Confirm the input type, required fields, browser permissions, and file size. If an external service is used, it may also be temporarily unavailable or rate-limited.
Review it first. Check accuracy, formatting, file integrity, and any rights or privacy obligations that apply to your content.