Analyze word occurrences, keyword frequency density, and stop-word filtering.
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.
Input your article, essay, or blog draft into the workspace.
Toggle English stop-word filtering or adjust minimum word length.
Review the ranked frequency chart and export statistics to CSV.
Most SEO professionals target a primary keyword density between 1% and 2.5% to avoid keyword stuffing penalties.
Stop words are common grammatical words (like 'the', 'is', 'and', 'at') filtered out so that meaningful topical keywords can be analyzed.
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.
