Keyword Density Checker
Analyze word frequency and keyword density in any text, with optional English stop-word filtering.
100% private — everything runs in your browser
How to Use
- 1
Paste or type your text into the left panel.
- 2
Keep the stop-word filter on to hide words like "the" and "and".
- 3
Read the statistics and the top-20 keyword table on the right.
Examples
Short sentence
Input
The quick brown fox jumps over the lazy dogOutput
7 words with stop words ignored; each keyword appears onceRepeated keyword
Input
Running shoes. Best running shoes for beginners.Output
"running" and "shoes" have the highest densityFAQ
What is a good keyword density?
There is no official target. Most natural copy lands between 1% and 3% for its main term; writing for readers matters more than hitting a number.
How are Chinese characters counted?
Chinese text has no spaces, so each CJK character is counted as one unit while Latin words are counted whole.
Is my text uploaded anywhere?
No. The analysis runs entirely in your browser.
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