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Accurately count the number of lines in any text. Ideal for code auditing, document editing, and log analysis.
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When you need to quickly determine the total size of a piece of code, a document, or a log file, counting lines manually is both inefficient and prone to errors. This tool automatically calculates and returns the total number of lines by parsing line breaks ( or ) in the text. Counting lines of text is a fundamental yet crucial text processing operation. It uses line breaks as delimiters to split a continuous text stream into independent "lines" and counts them. The result is commonly used to measure code volume, document length, or the number of data entries.
Q: How does the text line counter define a "line"?
A: The tool uses line breaks (such as
) as line delimiters. Everything before each line break (including empty content) is counted as one line. For example, inputting "Line 1
Line 2" will be counted as two lines.
Q: When counting lines of code, are empty lines and comments included?
A: Yes. This tool performs a physical line count and does not distinguish between code, comments, or empty lines. Any segment separated by a line break will be included in the total count. If you need to exclude empty lines or comments, we recommend preprocessing the text with a code analysis tool first.
This tool counts the physical lines of plain text. Empty lines are included. When processing extremely large texts (e.g., hundreds of thousands of lines), browser performance may be limited, so we recommend processing in batches. All calculations are done locally; none of your text data will be saved or uploaded, so you can use it with complete peace of mind.
In software development, Lines of Code (LOC) is a common metric for measuring project size, but it's important to note its limitations. It is better suited for tracking the size changes of a single project rather than comparing the complexity of different projects or languages. For log analysis, quickly counting lines can help you roughly estimate the volume of a log file and event frequency. A typical example: counting a Python code snippet that includes an empty line. If you input "import os def hello(): print('Hi') ", the tool will accurately output 4 lines (including the empty line on line 2).
