Total lines
0
Line of Code Counter
Paste code to count total, blank, comment and code lines — with per-line classification.
Pasted code is counted in your browser and never sent to a server.
Detected language
Plain text
Auto-detection is approximate. Choose a language for exact counting.
Code lines
0
Blank lines
0
Comment lines
0
Code + comment
0
Comment ratio
0.0%
Characters
0
UTF-8
0 bytes
Examples
What is this tool?
A free line-of-code counter. Paste source code and get total lines, code lines, blank lines, comment lines and the comment ratio, plus a per-line breakdown so you can see exactly how each line was classified.
How to use
- Paste your code into the input area.
- Pick a language (or keep auto-detect).
- Read the stats and per-line classification; copy the result if needed.
Use cases
- Quick size estimates without setting up a CLI tool.
- Checking comment coverage before a review.
- Comparing snippets when refactoring.
Notes
- Comment detection follows each language's line and block comment syntax.
- All processing happens locally in your browser.
FAQ
Which languages are supported?
JavaScript, TypeScript, CSS, HTML, Python, Shell, SQL, Markdown and plain text. Auto-detection is available, but choose a language explicitly for exact comment rules.
What counts as a comment line?
Lines that contain only a comment are comment lines; lines with both code and a trailing comment are counted separately as code + comment, so totals stay consistent.
Is my code uploaded?
No. Everything is counted locally in your browser.
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