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Code Line Counter

v1.0.0

Count lines of code, comments, and blanks by language

Counts total, code, comment, and blank lines in source files across nine languages, giving you a quick overview of code density and documentation coverage.

How to use
  • →Paste source code into the left panel, select the correct language from the dropdown, and press Count Lines.
  • →Check the comment-to-code ratio — a healthy range is 10–30 %; below that may indicate under-documented code.
  • →Try a preset from the example picker to compare how JavaScript, Python, and Java comment styles are detected.
Line count results will appear here…