Count lines in any text and identify blank or duplicate lines.
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Total lines
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Non-blank
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Unique lines
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Words
About this tool
Instantly counts the total, non-blank, and unique lines in any text. Useful for working with log files, CSVs, or any line-delimited data. The unique line count helps identify duplicates at a glance.
Runs in your browser — nothing is uploaded; your input never leaves your device. How it works
Quick answer
Paste any text and Tabreon instantly counts total lines, non-blank lines, and unique lines — useful for log files, CSVs, or any line-delimited data.
Why use Tabreon for this?
Shows total, non-blank, and unique line counts together, not just a single total.
The unique-line count surfaces duplicate lines at a glance, without manual comparison.
Runs entirely in your browser — pasted text is never sent to a server.
How to count lines in text
1Paste your text. Enter text with one item per line — a log file, CSV, or list.
2Read the live counts. Total lines, non-blank lines, unique lines, and word count update automatically.
Why distinguish total, non-blank, and unique lines?
Total line count includes every line, blank or not. Non-blank count excludes empty lines, which matters when a file has intentional or accidental blank-line padding. Unique line count collapses exact duplicates down to one, which is a fast way to spot repeated entries in a list, log file, or CSV without writing a script.
How Tabreon handles your data
Counting runs in your browser as you type using plain JavaScript string operations — the text is never sent to a server.
Key features
Total, non-blank, and unique line counts computed together
Word count included alongside line counts
Works on any amount of pasted text
Instant results as you type or paste
Common use cases
Checking how many entries are in a pasted list before importing it somewhere
Spotting duplicate lines in a log file or CSV export
Confirming a text file's line count matches an expected row count
Common mistakes & limitations
"Unique lines" compares lines for an exact match, including whitespace — two lines that look identical but differ by a trailing space count as different.
Frequently asked questions
A line is compared for an exact character match against every other line — even a difference in trailing whitespace makes two visually identical lines count as different.
Yes, it's included in the total line count, but excluded from the non-blank count.