Calculate words, characters, sentences, reading time, and top keyword frequencies.
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.
Enter your article or essay into the text box.
Inspect total words, characters, reading time, and sentences.
Review top non-stopword keyword frequencies.
The average adult reading speed is approximately 200 to 250 words per minute (WPM).
Average presentation speaking speed is approximately 130 to 150 words per minute.
Zero-egress companion tools in the Text Utilities suite
Calculate US grade level comprehension using the Automated Readability Index (ARI) formula.
Strip accents and normalize European characters into plain ASCII Latin letters.
Encode and decode reversible ROT13 and custom Caesar cipher text strings.
Format scientific Markdown chemical formulas and mathematical exponents.
