Analyze single words, bigrams, and trigrams with keyword stuffing warnings.
Execution runs 100% locally inside the browser sandbox using HTML5 Canvas, Web Cryptography Subtle API, and Web Workers. Zero egress.
Zero network latency. Operates completely offline with zero dependencies on third-party backend servers or cloud services.
Built according to official RFC specifications, cryptographic test vectors, and enterprise-grade data transformation standards.
Paste your article copy, blog draft, or webpage content into the editor.
Toggle 1-word, 2-word, or 3-word phrase frequency analysis and stop-word filtering.
Check keyword density percentages and export the full frequency table to CSV.
A keyword density of 1% to 2.5% is generally considered optimal. Anything above 3.5% may risk keyword stuffing penalties.
Zero-egress companion tools in the Text Utilities suite
Live statistics: words, characters, sentences, paragraphs, and reading time.
Convert text to uppercase, lowercase, title case, camelCase, snake_case, and kebab-case.
Write, preview, format, and export Markdown to clean HTML in real time.
Convert titles into clean, SEO-friendly URL slugs with custom separators.
