Line Counter
Count total, non-empty and unique lines in your text.
- Total lines
- 0
- Non-empty
- 0
- Empty
- 0
- Unique
- 0
Quick answer
Count total, non-empty and unique lines in your text.
How do I use the Line Counter?
- 1
Paste your text or list into the input area.
- 2
See total, non-empty and unique line counts update in real time.
- 3
Copy the input back out or reset when you are done.
What is the Line Counter?
The Line Counter reports how many lines your text contains - total lines, non-empty lines and unique lines - updated live as you type or paste. It is the fastest way to check the size of a list or the length of a code block.
Unlike a word processor, it counts actual newline characters, not visually wrapped lines, so the number matches what a script, spreadsheet or database would see.
Who is the Line Counter for?
Developers checking file sizes, data analysts sizing up lists, marketers counting entries in a CSV column, and writers wanting a quick line count for a poem or script.
Why use the Line Counter?
- Separate totals for all, non-empty and unique lines.
- Counts real newlines, not word-wrapped rows.
- Live updates without a submit button.
- Handles very large pastes without freezing.
- Fully offline after page load.
When should I use the Line Counter?
- Checking how many rows are in a pasted CSV column.
- Counting subscribers in an email list export.
- Sizing up a code snippet or config file.
- Counting stanzas or verses in a poem.
- Confirming a dataset has the expected number of rows.
Is the Line Counter safe and private?
Yes. This tool runs entirely inside your browser - your text is never uploaded, stored on our servers or shared with third parties. You can even disconnect from the internet after the page loads and it will keep working. That makes it safe for confidential notes, drafts, private messages and unpublished work.
How do I get the best results from the Line Counter?
- Non-empty lines is usually the number you actually want to report.
- If your list uses commas instead of newlines, run it through a splitter first.
- Unique-line count tells you how much deduplication would remove.
- Very long lines still count as one line - length does not matter.
Frequently asked questions
How is a line defined?
A line is any run of text separated by a newline character. Word-wrapped display lines do not add to the count - only actual newline characters do.
What counts as an empty line?
A line that is completely empty or only contains whitespace (spaces or tabs) is treated as empty.
How are unique lines counted?
Unique lines are calculated case-insensitively with leading and trailing spaces trimmed, matching the behaviour of the Remove Duplicates tool.
Is there a size limit?
No practical limit. The tool comfortably handles files with tens of thousands of lines.
Related counters and text tools
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OpenCharacter Counter
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OpenRemove Duplicates
Remove duplicate lines from a list while keeping the original order.
OpenParagraph Counter
Count paragraphs, sentences and words in any pasted text.
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