Line Counter Count the number of lines in any text, including blank and non-blank lines.
Line Counter
Count the number of lines in any text, including blank and non-blank lines.
Paste Your Text
Enter or paste the text whose lines you want to count.
Review the Line Breakdown
Instantly view total lines, non-blank lines, and blank line counts.
Copy or Adjust Your Text
Copy the results or adjust your text as needed.
What Is Line Counter?
A line counter counts the total number of lines in any text input, distinguishing between blank and non-blank lines. Lines are determined by newline characters, making it well suited for code analysis, log file inspection, data file review, and text formatting checks. Developers use line counts to gauge code file sizes, system administrators analyze log files by line count, and writers verify formatting. The tool provides a complete breakdown including total lines, lines with content, and empty lines, giving you a thorough understanding of your text's line-by-line structure.
Why Use Line Counter?
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Instant line count for text of any length
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Separate counts for blank and non-blank lines
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Essential for code review and log file analysis
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Helps verify data file row counts
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No installation needed — runs in your browser
Common Use Cases
Code Review
Count lines of code to estimate file complexity and identify files that may need refactoring.
Log Analysis
Quickly determine how many entries are in a log file or error report.
CSV/Data Files
Verify the number of rows in CSV or TSV data files before processing.
Text Formatting
Check that text files have the expected number of lines after formatting or transformation.
Technical Guide
Line counting splits the input string on newline characters (\n) and counts the resulting array length. Total lines include every line including the last one, even if it doesn't end with a newline. Blank lines are identified as lines containing only whitespace characters (spaces, tabs) or completely empty. Non-blank lines are the difference between total and blank lines. The tool handles different line ending conventions — Unix (\n), Windows (\r\n), and old Mac (\r) — by normalizing all line endings to \n before counting. This ensures accurate counts regardless of the text's origin platform.
Tips & Best Practices
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1Paste code directly to get an accurate line count for documentation
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2Use blank line count to identify excessive spacing in your text
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3For CSV files, subtract 1 from the line count if there's a header row to get data row count
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4Line counts in code are often used as a rough complexity metric
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5Empty lines at the end of files are counted — trim your text first if you want to exclude them
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📝 Text ToolsFrequently Asked Questions
Q Are blank lines included in the count?
Q How are Windows line endings handled?
Q Does a trailing newline add an extra line?
Q What's a typical lines-of-code count for a small project?
Q Can I count lines in a CSV file?
About This Tool
Line Counter is a free online tool by FreeToolkit.ai. All processing happens directly in your browser — your data never leaves your device. No registration or installation required.