Count lines, blank lines, duplicates, and line statistics in text
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Total Lines
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Blank Lines
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Non-Blank Lines
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Unique Lines
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Duplicate Lines
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Longest Line (chars)
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Shortest Line (chars)
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Avg Line Length
Count words, characters, sentences, and estimate reading time
Remove duplicate lines from text with sorting and case options
Sort lines of text alphabetically, numerically, or by length
Compare two texts and find the differences
Line Counter is a free online tool that analyzes your text and provides detailed line-by-line statistics. It counts total lines, blank lines, non-blank lines, unique lines, and duplicate lines. It also calculates the longest line length, shortest line length, and average line length in characters. This tool is perfect for developers reviewing log files, writers checking document structure, data analysts working with CSV or line-delimited data, and anyone who needs quick text statistics. Simply paste your text and see all metrics update in real time. All processing happens entirely in your browser — no data is sent to any server.