Cleaning a list usually means three things: sorting it, removing duplicate lines, and tidying whitespace. Doing this by hand is tedious, but a line tool can sort, deduplicate, reverse, shuffle and trim a list in one click. To use it, paste your list one item per line and apply the operations. Here is how.
One item per line.
Sort A→Z, Z→A or numerically, or remove duplicate lines.
Trim whitespace, remove empty lines, reverse or shuffle.
Operations apply in place so you can chain them, then copy the result.
Removing duplicate lines
Deduplication keeps the first occurrence of each line and drops the rest. Turn on case-insensitive matching to treat Apple and apple as the same. The line tool does it instantly — handy for keyword lists, email lists and data columns.
Alphabetical vs numeric sorting
Alphabetical sorting compares text, so 10 comes before 2. Numeric sorting compares the numbers, so 2 comes before 10. Pick the one that matches your data. Cleaning a column for a spreadsheet? Pair it with CSV to JSON.
Tip: Chain operations for a clean result: Trim → Remove empty → Remove duplicates → Sort A→Z turns a messy paste into a tidy, unique, sorted list.
Sort and dedupe now
Sort, deduplicate and clean a list in one click — free, in your browser.
Open the Sort / Dedupe tool →Frequently Asked Questions
How do I remove duplicate lines?
Paste your list and click “Remove duplicates” — repeated lines collapse to one, keeping the first.
Can I sort numbers correctly?
Yes — use “Numeric” to sort by value so 2 comes before 10.
Is my list uploaded?
No — every operation runs in your browser.