Remove Duplicate Lines
Remove duplicate lines from your text instantly.
Free Duplicate Line Remover - Remove Repeated Lines
Our free online duplicate line remover instantly finds and eliminates repeated lines in your text. Whether you're cleaning data lists, removing redundant entries, or deduplicating content, this tool makes removing duplicate lines quick and effortless.
Smart Duplicate Detection
Configure how duplicates are detected. Enable case-sensitive matching to treat "Hello" and "hello" as different lines, or disable it to catch all variations. Trim whitespace from lines to catch duplicates with different spacing. Keep the first or last occurrence of each unique line.
Key Features
- Case sensitivity option - Match exact case or ignore it
- Trim whitespace - Catch duplicates with different spacing
- Keep first/last - Choose which occurrence to preserve
- Duplicate count - See how many lines were removed
- Sort option - Optionally sort the unique lines
- Instant processing - Handle thousands of lines quickly
Common Use Cases
Data analysts use duplicate removers to clean email lists and customer data. Developers remove redundant code or log entries. Writers clean up outlines and lists. Researchers deduplicate survey responses. Anyone working with line-based data benefits from duplicate removal.
How to Use
Paste your text with duplicate lines in the input field, configure your matching options, and click the remove button. All duplicate lines are instantly removed, leaving only unique entries. Copy the clean list with one click. Our tool is completely free with no registration required!