Remove Duplicate Lines

Remove duplicate lines online free. Deduplicate text with trim and case options in your browser — no signup.

About Remove Duplicate Lines

Clean lists, logs, or keyword dumps by removing duplicate lines. TheToolss can trim whitespace and ignore case while keeping unique lines, privately in your browser.

How to use Remove Duplicate Lines

  1. Paste text that contains duplicate lines.
  2. Choose trim and case-insensitive options if needed.
  3. Process and copy the unique-line result.

Frequently asked questions

Is this tool free?
Yes. Remove Duplicate Lines is free on TheToolss.
Can matching ignore case?
Yes. Enable case-insensitive matching when needed.
Is text uploaded?
No. Processing runs in your browser.