Keyword Density Checker – Complete Guide & Free Online Tool
A keyword density checker calculates how frequently a keyword appears in your text as a percentage of total words, helping you avoid over- or under-optimization. Free online tool included.
Published 2026-09-13
What is Keyword Density Checker?
A keyword density checker calculates how frequently a keyword appears in your text as a percentage of total words, helping you avoid over- or under-optimization.
What is keyword density?
It is the percentage of times a keyword or phrase appears in your text compared to total words. A common target is around 1–2.5%, but there is no strict rule.
Why balance matters
Using a keyword too little may miss the topic; using it too much (keyword stuffing) reads poorly and can hurt quality. Focus on writing naturally with the keyword included.
Key Features
• Occurrence count • Density percentage • Low/healthy/high indicator • Local analysis
Examples
• If home workout appears 5 times in a 500-word article • density is about 2%.
Common Use Cases
• Content optimization • Avoiding keyword stuffing • SEO writing
Tips & Best Practices
• Write for readers; let density follow naturally. • Check multiple related keywords too.
Limitations
• Density is one signal among many; do not optimize to a rigid number.
External Resources
Moz: Keyword Density