🧰Locly

Remove Duplicate Lines from Text

Deduplicate lines while optionally keeping first-seen order

Result

About This Tool

Remove Duplicate Lines cleans a list by deleting repeated lines. You can keep the first occurrence order, ignore case, and trim whitespace before comparing. Everything is processed locally in your browser.

How to Use

  1. Paste your text
  2. Choose options (order, case, trim)
  3. Click Remove duplicates
  4. Copy the unique lines
  5. Clear when finished

Common Use Cases

  • Clean mailing lists
  • Deduplicate logs
  • Unique keywords for SEO drafts
  • Remove repeated CSV rows
  • Tidy copied chat lists

FAQ

Q1: Does keep order preserve the first copy?

Yes. The first time a line appears is kept; later duplicates are removed.

Q2: What does ignore case do?

Hello and hello count as the same line when ignore case is on.

Q3: Are blank lines removed?

Blank lines are treated like any other line. Duplicate blanks are removed; the first blank may remain.

Q4: Is text uploaded?

No. Deduplication is processed locally in your browser.

Q5: Can I sort instead of keep order?

This tool focuses on first-seen order. Turn off keep order only if you do not need stable order.

Related Tools

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