Which line is kept when duplicates are found?

The first occurrence is kept, with its original casing preserved even in case-insensitive mode.

Can I sort without removing duplicates?

Yes, sorting and deduplication are independent options — use either one alone or together.

Is my list uploaded anywhere?

No, everything is processed entirely in your browser.

Is duplicate detection case-sensitive?

Not by default: Ignore case is on. Untick it to treat Apple and apple as different lines. The first occurrence keeps its original casing.

Does it ignore leading or trailing whitespace when comparing lines?

Yes, when Trim spaces is on, lines that differ only in surrounding spaces count as the same.

What sorting options are available besides alphabetical?

A to Z, Z to A, natural (item2 before item10), natural descending, shortest first, longest first, reverse order and shuffle.

Can I remove blank lines at the same time?

Yes. Drop empty lines works alongside the other options, and the status bar reports how many were removed.

Can I see only the duplicates, or count them?

Yes. Mode lets you show only lines that appear more than once, keep only lines that appear exactly once, or list each line with how many times it occurs.

Processed 100% locally in your browser

Duplicate Line Remover & List Sorter

Remove duplicate lines, find duplicates, count occurrences and sort — with live statistics.

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Quick Answer

Duplicate Line Remover & List Sorter lets you: Remove duplicate lines, find duplicates, count occurrences and sort — with live statistics. To start, paste a list with one item per line.

How to use this tool

1
Paste your list
Paste a list with one item per line.
2
Set your options
Toggle case-insensitive matching, whitespace trimming, and empty-line removal as needed.
3
Sort and copy
Pick a sort order, then copy the cleaned list.

Frequently Asked Questions

Case Converter

Convert text between 14 case styles live — Unicode-aware, per line, and ideal for identifiers.

Word Counter

Live word, character, sentence and paragraph counts, reading and speaking time, top words, keyword density and character-limit checks — 100% private.

Duplicate Line Remover & List Sorter

How to use this tool

Paste your list

Set your options

Sort and copy

Frequently Asked Questions

Which line is kept when duplicates are found?

Can I sort without removing duplicates?

Is my list uploaded anywhere?

Is duplicate detection case-sensitive?

Does it ignore leading or trailing whitespace when comparing lines?

What sorting options are available besides alphabetical?

Can I remove blank lines at the same time?

Can I see only the duplicates, or count them?

Related Tools

Case Converter

Word Counter

Duplicate Line Remover & List Sorter

How to use this tool

Paste your list

Set your options

Sort and copy

Frequently Asked Questions

Which line is kept when duplicates are found?

Can I sort without removing duplicates?

Is my list uploaded anywhere?

Is duplicate detection case-sensitive?

Does it ignore leading or trailing whitespace when comparing lines?

What sorting options are available besides alphabetical?

Can I remove blank lines at the same time?

Can I see only the duplicates, or count them?

Related Tools

Case Converter

Word Counter