Code Line Counter
Count total, blank, non-blank, and comment lines in any pasted code.
Paste your code below - this tool counts total, blank, non-blank, and (optionally) comment lines.
Comment-line detection uses common single-line comment markers (//, #, --) - it's a reasonable approximation, not a full language-aware parser.
What Does This Tool Count?
Total line count, blank lines, non-blank lines, and (based on common comment markers like //, #, or --) an estimate of comment-only lines.
Why Use This Tool?
A quick, practical way to gauge a file's size or estimate how much of it is actual code versus comments/whitespace, without needing to open it in an IDE with a line-count feature.
How to Use It
- Paste your code.
- Click Count.
- Review the total/blank/non-blank/comment line breakdown.
Limitations
Comment detection looks for common single-line comment markers at the start of a trimmed line - it doesn't parse multi-line block comments or understand any specific language's full comment syntax perfectly.