Line Counter – Count Lines, Empty Lines & Longest Line in Text
Count lines, non-empty lines, empty lines, and find the longest line in your text.
How to use this line counter
- Paste or type your text into the input field above
- The total line count updates automatically as you type, with no button to click
- Check the non-empty lines stat to see how many lines actually contain content
- Check the empty lines stat to spot blank lines you may want to clean up
- Check the max line length stat to find the longest single line in your text
Frequently Asked Questions
How are lines counted?
Lines are counted by splitting the text at newline characters. The tool shows total lines, non-empty lines, empty lines, and the length of the longest line.
What counts as an empty line?
An empty line is a line that contains only whitespace (spaces, tabs) or is completely empty. Lines with any visible characters are counted as non-empty.
Is my text stored or sent to a server?
No. All counting happens entirely in your browser. Your text is never sent to any server or stored anywhere.
Related Tools
A line counter helps developers, writers, and editors quickly determine how many lines are in a block of text or code, which is useful whenever a task depends on line structure rather than word or character count. Programmers use it to check script length before pasting into an editor with line limits, log analysts use it to gauge how many entries a pasted log snippet contains, and writers use it to check the structure of poems, scripts, or line-delimited lists. Because it also separates empty lines from non-empty ones and reports the longest line, it doubles as a quick sanity check for formatting issues before content is copied elsewhere. Everything runs locally in your browser, so pasted code or text is never uploaded anywhere.
What is line counter?
A line counter is a utility that splits text on newline characters and reports statistics about the resulting lines. It calculates the total number of lines, then classifies each one as non-empty (containing at least one non-whitespace character after trimming) or empty (blank or whitespace-only), and tallies both categories separately. It also scans every line's character length and reports the longest one, which is useful for spotting unusually long lines in code or data. Because the split happens purely on the newline character, the tool reflects exactly how the text is structured in the box, including any blank lines you've added. All of this analysis updates instantly as you type or paste, entirely within your browser.
Common use cases
- Checking how many lines of code or a config snippet you are about to paste somewhere with a line limit
- Counting entries in a pasted log file or list of URLs, one per line
- Verifying the number of rows in plain-text CSV or TSV data before importing it elsewhere
- Checking the line structure of poems, lyrics, or scripts
- Spotting unusually long lines in code or data that might need to be wrapped or split
- Confirming a file conforms to a maximum-lines requirement before submission
Limitations and common mistakes
- Lines are counted by splitting on the newline character only, so visually wrapped text in the textarea that has no actual line break is counted as a single line
- If your text uses Windows-style line endings (\r\n), the carriage return character remains attached to each line and is included in the max line length count
- An empty line is defined as whitespace-only after trimming, so a line with a single space is still counted as empty even though it is not literally blank
- Max line length counts characters, not rendered width, so a line with tabs or wide Unicode characters may look longer or shorter on screen than the reported number suggests
- Extremely large pasted files (tens of thousands of lines) may cause a brief delay while statistics recalculate, since the whole text is re-split on every change