Keyword Density Checker is a free, browser-based search engine optimisation tool. Analyze keyword density in text content. Find the top keywords, bigrams, and trigrams to optimize for SEO.
SEO specialists, content marketers, website owners, and digital agencies use Keyword Density Checker every day to save time and skip the overhead of desktop software or paid services. No installation, no account, and no technical knowledge required — just paste your content into Keyword Density Checker and get results in seconds. Your files never leave your browser — full privacy by design.
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How to use Keyword Density Checker
1
Paste content
Enter or paste your page content.
2
Analyze
Calculate keyword frequencies.
3
Review results
See top keywords with density percentages.
Use Cases
- Optimising new pages before publishing to ensure technical correctness
- Auditing existing pages for crawlability and structured data issues
- Preparing JSON-LD schemas for rich results in Google Search
- Monitoring and improving search snippet appearance and CTR
Key Benefits
- 100% free with no usage limits, watermarks, or hidden fees
- No account or sign-up required — use it instantly
- Works in all modern browsers on desktop, tablet, and mobile
- Privacy-first: all processing runs locally, files never leave your device
- Actionable insights with clear, readable output
- Detailed breakdown with specific recommendations