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JavaScript Size Analyzer
Analyze JavaScript source code size, characters, bytes, lines and useful code statistics instantly in your browser.
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About JavaScript Size Analyzer
JavaScript Size Analyzer is a free browser-based tool that helps you measure the size and basic statistics of JavaScript source code. It can show character count, UTF-8 byte size, line count, whitespace and other useful measurements.
How To Use
- Paste your JavaScript code into the input box.
- Click Analyze Size.
- Review the JavaScript size statistics.
- Use Copy Summary if you want to copy the analysis.
Features
- JavaScript character counting.
- UTF-8 byte size calculation.
- Kilobyte and megabyte size calculation.
- Total line count.
- Non-empty line count.
- Word count.
- Whitespace count.
- Comment line estimation.
- Average line length.
- Browser-based processing.
- No registration required.
Frequently Asked Questions
What does the JavaScript Size Analyzer measure?
It measures JavaScript source-code characters, UTF-8 bytes, lines, non-empty lines, whitespace and several additional basic statistics.
Does this tool upload my JavaScript?
No. The analysis is performed directly in your browser using client-side JavaScript.
Is UTF-8 size different from character count?
Yes. Some Unicode characters require more than one byte when encoded as UTF-8, so the byte size can be different from the number of characters.
Can I analyze large JavaScript code?
The tool processes the supplied source directly in the browser. Practical limits depend on the browser and available device memory.
Is the JavaScript code executed?
No. The tool analyzes the source text and does not execute the supplied JavaScript program.