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Guides / Line Counter

How to Count Lines, Empty Lines and Unique Lines

3 min read · Updated October 2026

Lists of names, emails or log entries are line based. Knowing how many lines there are, and how many are unique, helps you check data before using it.

Try it now: Line Counter

Free, no sign up, and the file stays on your device.

Open Line Counter

What it tells you

  • Total lines and non-empty lines.
  • Empty lines.
  • Unique lines, so you can spot repeats.

How to use it

  • Open Line Counter and paste your text.
  • Read the totals.
  • If the unique count is lower than the total, use Remove Duplicate Lines to clean it.

Good uses

  • Checking that a list has the expected number of items.
  • Comparing the size of two exports.
  • Finding blank gaps in pasted data.

Frequently asked questions

Does it count wrapped lines?

It counts real line breaks, not lines that only look wrapped on screen.

Is my text uploaded?

No. Everything happens in your browser, so your text never leaves your device.

Ready to start?

Open Line Counter