Remove duplicate lines
Clean a list: drop duplicate lines, blanks and stray whitespace.
- Instant
- Free
- Private (processed locally)
- No sign-up
Clean a list in one click
Paste any list — email addresses, SEO keywords, IDs, log lines — and get a version free of duplicates. Original order is kept by default.
-
Paste your list
One entry per line.
-
Pick the options
Case, spaces, blanks, sort.
-
Copy the result
Unique lines ready to use.
Available options
- Ignore case (UPPER = lower)
- Trim leading/trailing spaces
- Remove empty lines
- Sort the result A to Z
Example
| Input | Output (no duplicates) |
|---|---|
| apple | apple |
| pear | pear |
| apple | banana |
| banana |
100% local processing in your browser: your lists never leave your device.
Frequently asked questions
How does it work?
Paste your text: each line is compared with the previous ones and repeats are removed, keeping the first occurrence (order is preserved).
Can I ignore case?
Yes. With “Ignore case”, “Paris” and “paris” are treated as identical. You can also trim leading and trailing spaces.
Can the result be sorted?
Yes, enable “Sort result (A→Z)” to get a deduplicated list ordered alphabetically.
Is my data uploaded?
No. All processing happens in your browser; no line is sent to a server.