Japanese用の無料Keyword Density Analyzer

Japanese (日本語) does not use spaces between words the way Latin-based languages do. Our keyword density analyzer counts both characters and "words" (space-separated tokens), but for Japanese content, the character count is the more meaningful metric. The tool correctly processes all Unicode Japanese characters.

Yes, our keyword density analyzer is completely free for Japanese (日本語) text with no word or character limits. There is no registration, no subscription, and no payment required. All processing happens in your browser, so your Japanese text stays private.

For Japanese (日本語) content, keyword density is calculated as the percentage of a specific keyword or phrase relative to total word count. Because Japanese doesn't use word-separating spaces, the tool analyzes character sequences. Enter your target Japanese keyword phrase and the tool identifies its frequency.

With over 125 million Japanese speakers worldwide primarily in Asia, our keyword density analyzer is used by Japanese-speaking students, writers, bloggers, content creators, and professionals who need to track word or character counts for essays, articles, social media posts, and academic submissions.

Completely. Our keyword density analyzer processes your Japanese (日本語) text entirely in your browser using JavaScript. Nothing you type or paste is sent to our servers. Your Japanese content remains on your device at all times, making the tool safe for confidential documents, academic work, and private writing.

No. You can paste as much Japanese (日本語) text as needed — there is no word count or character count limit. The tool processes long documents, entire articles, or single paragraphs equally well. Performance depends on your browser, but most modern browsers handle hundreds of thousands of Japanese characters without issue.