Transcribe voice and speech into text, SRT subtitles, and WebVTT client-side.
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.
No. Utilifi uses local browser SpeechRecognition capabilities. Your microphone feed and transcripts remain local on your machine.
Yes. You can export plain text (.txt), SubRip subtitle files (.srt), and WebVTT files (.vtt).
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.
