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Unique Values Extractor – Remove Duplicates from List

listClient-side utility

Pasting a list with repeated lines — email addresses, SKUs, tags — and needing each value once is a daily chore in data cleanup. Unique Values Extractor removes duplicate lines, keeping the first occurrence of each and preserving the original order. By default, matching ignores case, so "Apple" and "apple" count as the same line; tick the Case sensitive checkbox if capitalization should distinguish values. Paste your list, click Get Unique, and the deduplicated result appears in a read-only box. The work happens locally in your browser.

✓ In-Browser Execution✓ Free & No Usage Cap✓ Zero Server Data Storage

Case sensitive

📖How to Use This Tool

What is Unique Values Extractor?

Unique Values Extractor (the list-unique-values tool) removes duplicate lines from a pasted list while keeping the first occurrence of each value and the original order of everything else. It is the dedupe step in list cleanup workflows: paste messy data, get a clean unique list.

Matching is case-insensitive by default — lines are compared in lowercase, so "Apple" and "APPLE" collapse to whichever appeared first. Enabling the Case sensitive checkbox makes "Apple" and "apple" distinct values. Comparison is by whole line, including any leading or trailing spaces.

The result appears in a second read-only text area, leaving your input untouched for comparison.

How to use it

Paste your list into the box labeled Enter items..., one value per line.
Leave Case sensitive unchecked to treat "Apple" and "apple" as duplicates, or tick it to keep them separate.
Click Get Unique.
Copy the deduplicated list from the read-only result box below.

Why use this over alternatives

Spreadsheet dedupe features reorder your data or demand a file upload; this page keeps your order, works on pasted text directly, and offers the case-sensitivity choice up front. The tool runs locally in your browser using client-side JavaScript. The tool does not intentionally send your list to our servers.

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❓Frequently Asked Questions

Q.Does the tool keep the original order?

Yes. It keeps the first occurrence of each unique line and drops later repeats, so the output preserves the order in which values first appeared in your input.

Q.How does the Case sensitive option work?

Off by default, lines are compared case-insensitively ("Apple" equals "apple"). When ticked, lines must match exactly, including capitalization, to count as duplicates.

Q.Are leading or trailing spaces significant?

Yes. Lines are compared whole, spaces included, so "apple" and "apple " (with a trailing space) are treated as different values regardless of the case setting.

Q.Is my list uploaded anywhere?

No. It runs locally in your browser using client-side JavaScript. The tool does not intentionally send your list items to our servers.

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