Line Counter is an online tool that counts the number of lines in your text as you type or paste.
A line is any run of text ending with a newline, or the last segment of text if it has no trailing newline. Empty input shows zero lines. This tool is useful for code, logs, CSV data, lists, or any content where line count matters.
Developers, writers, and data users rely on line counts to check file size, meet submission limits, or verify log or list length.