Digital Toolchest

Remove Duplicates From List

Deduplicate any list in seconds. Paste a line-separated list and get unique values without changing order.

List items

Paste one value per line to remove duplicates.

Processing happens locally in your browser; nothing is uploaded.

Deduplicated listUnique values in their original order.

0 lines in0 lines outN/A runtime

Typical lists process in under 1ms on modern browsers.

How to remove duplicates

Deduplicate in 3 steps

Takes ~5 seconds
  1. 1
    Paste your list

    Add one item per line in the input box.

  2. 2
    Remove duplicates

    Click "Remove duplicates" to filter the list.

  3. 3
    Copy output

    Copy the unique list for reuse.

Use this to clean up exports, tags, or line-separated data sets.

Who should use this tool?

  • Data analysts cleaning lists
  • Developers deduplicating IDs
  • Marketers organizing tags

Examples

Removes duplicates while keeping order.

"apple banana apple cherry banana" -> apple banana cherry

Handles mixed case entries as distinct values.

"Apple apple APPLE" -> Apple apple APPLE

Keeps blank lines if present.

"one one" -> one

Remove duplicates fast

Clean up line-separated lists without manual editing.

Use this remove duplicates tool to clean up line-separated lists quickly. Paste your items, generate the unique list, and copy the output instantly. The tool runs entirely in your browser and preserves the original order of your list.

Unique entries

Remove duplicate lines without changing the order of your list.

  • Preserves order
  • Instant output
  • No server upload
Bulk ready

Clean up long lists in a single pass.

  • Bulk paste
  • Line-by-line output
  • Copy or download easily
Privacy first: we never send your input to a server. Everything runs locally in your browser.

Deduplication tips

Keep lists consistent to avoid accidental duplicates.

  • Normalize casing if needed.
  • Remove extra whitespace before deduping.
  • Keep one value per line for clarity.

Frequently asked questions

Does this preserve the original order?>
Yes. The first occurrence of each line is kept in place.
Are empty lines removed?>
Empty lines are kept as a single blank entry if present.
Is my data sent anywhere?>
No. All processing happens locally in your browser.

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