Free Online Line Counter Tool – Count Lines, Blank Lines & More
Whether you are a developer reviewing a log file, a writer organizing a manuscript, or a data analyst inspecting CSV exports, knowing how many lines your text contains is surprisingly useful. Our free online line counter provides instant, accurate statistics about every line in your text the moment you paste or type it.
Beyond simple line counting, this tool distinguishes between blank and non-blank lines, identifies the longest and shortest lines by character count, and calculates the average line length across all non-empty lines. These metrics help you spot formatting issues, enforce coding style guidelines, and optimize content for readability.
Developers often need to count lines of code (LOC) to estimate project complexity or meet code-review requirements. This line counter handles any text — source code, configuration files, markdown documents, plain text, or structured data — without requiring any installation or sign-up.
Average line length is a key metric in code quality. Many style guides recommend keeping lines under 80 or 120 characters. Use this tool to quickly check whether your files comply with line-length limits before committing code to your repository.