🔒 Client-side — Your data never leaves your browser✅ 100% Free — No signup, no limits⚡ Instant — No server processing
★★★★★
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Paste text or code · Auto-count lines · Multi-language comment detection · 100% Client-Side
Paste code from your editor · All processing happens locally in your browser
0
📄 Total Lines
0
✏️ Non-Empty
0
⬜ Empty
0
💬 Comments
0
⚡ Code
0%
📊 Comment Ratio
❓ Frequently Asked Questions
Which languages does this line counter support?
It supports JavaScript, TypeScript, Python, HTML, CSS, Java, C, C++, C#, SQL, Shell, Ruby, Go, Rust, and more. Select the corresponding language to accurately distinguish between code and comment lines.
Is my code data secure? Does it get uploaded?
Absolutely secure. All counting happens locally in your browser — your text and code never leave your device and are never uploaded to any server. This is one of the key advantages over online counting services.
How are empty lines and comment lines defined?
Empty lines are those containing only whitespace. Comment lines are identified based on the selected language — e.g., lines starting with # in Python, // in JS, or wrapped in /* */ blocks. Lines with code followed by a comment are counted as code lines, not comment lines.
Does it support multi-line block comments?
Yes. For languages with block comments (like /* */ in JS, """ in Python, in HTML), the tool identifies start and end markers and counts all lines between them as comment lines.
Can I count lines across an entire project?
The current version is designed for individual files or text snippets. For entire projects, consider using local tools like cloc (Count Lines of Code) or your editor's built-in statistics. You can also paste files one by one into this tool.
Frequently Asked Questions (FAQ)
What does this line counter tool count?
This tool counts lines, words, characters (with and without spaces), and paragraphs in your text.
Is the line counter free to use?
Yes, this tool is completely free. No signup or payment required.
Does this tool work offline?
Yes, once loaded in your browser, this tool works without an internet connection.
Can I paste large text files?
Yes, you can paste any amount of text. The tool processes everything locally in your browser.
How accurate is the word count?
The word count uses standard whitespace splitting and is accurate for English and most Latin-script languages.