TEXT TOOLS

Remove Duplicate Lines 🧹

Remove repeated lines from lists, keywords and pasted text while keeping control over case, whitespace and which copies to retain.

Keep first or last matchCase-sensitive optionsPrivate browser cleanup

Paste Text Or List

Input text

Keep duplicate

Output mode

Trim spaces around lines Remove blank lines Case sensitive matching Add line numbers to output

🛡️ This duplicate text remover runs locally in your browser. Your pasted text is not uploaded by this tool.

Clean Output

Duplicates removed

Paste text to remove duplicate lines.

Input lines

Unique lines

Output lines

Duplicate groups

Output text

Use the options to keep the first duplicate, keep the last duplicate, ignore case, remove blank lines or show only duplicates.

Duplicate Report

Duplicate groups and repeat counts will appear here.

Repeated line	Count
No duplicate lines found yet.	0

Blank lines removed 0

Match mode Ignore case

Keep mode First occurrence

Output type Unique lines

Remove Duplicate Lines FAQ

How do I remove duplicate lines?

Paste your text or list into the input box. The duplicate line remover compares each line, keeps one copy of repeated lines and shows the cleaned result in the output box.

What is a duplicate line?

A duplicate line is a line that appears more than once in your text. For example, if the word “apple” appears on three different lines, this tool can keep one apple line and remove the extra copies.

Can I remove duplicates from a list?

Yes. This tool works well for keyword lists, URL lists, name lists, email lists, copied spreadsheet rows and other line-based text.

Should I use case sensitive matching?

Use case sensitive matching if uppercase and lowercase versions should stay separate. Leave it off if “Example”, “example” and “EXAMPLE” should count as the same duplicate line.

Does this duplicate text remover save my text?

No. The duplicate removal happens in your browser. The tool is designed for quick local cleanup, copying and list deduplication.

Can I keep the last occurrence of a duplicate?

Yes. Choose Keep last occurrence before processing. The cleaner retains the final matching line rather than the first one, so the output follows your preferred version.