OneSentence: the privacy-first utility that empowers your workflow.
Professional Offline Transcription. High-Fidelity AI
Speech.
* OneSentence uses AI models which can occasionally make mistakes.
Your voice and text never leave your device. OneSentence runs entirely offline using local binaries. No cloud. No tracking.
Optimized for Apple Silicon (M1-M4). High-performance AI utilizes the GPU and Apple Neural Engine for low-latency, energy-efficient processing.
Intelligent ducking automatically lowers the volume of other apps while speaking. Full "Now Playing" support allows media key control and status visibility.
Designed for focus. Bypass complex menus and reduce visual strain. Just press a key to speak or listen instantly.
Access your entire library of canned responses, code blocks, and email templates instantly. The Universal Palette is a fuzzy-search command bar that works in any application.
.snippet and .yasnippet formats.
View and manage your past transcriptions. History is stored locally on your device.
The architecture of the forum survives not in stone, but in the single spoken sentence that once commanded the legions of Latium. A universe captured in a breath.
Observed the ruins of Nineveh today. In that ancient mess of clay and dust, there is nothing left to seek but the ghost of a single spoken sentence. One thought, one voice, once ruling the cradle of the world.
OneSentence is the echo of the ancient word—the logos that shaped the world. A single spoken truth, processed locally, echoing through eternity.
Every transcription you make is automatically and securely saved to a durable, local database on your Mac. Nothing is ever sent to the cloud.
OneSentence provides a seamless interface for your favorite tools. Quickly record, transcribe, and paste your thoughts into ChatGPT, Claude, Gemini, or any professional editor with unprecedented accuracy. It is the most natural and efficient way to interact with your digital workspace.
Transform your speech into precise text instantly. Powered by OpenAI's Whisper models (from Tiny to Large-v3-turbo) and NVIDIA's Parakeet, OneSentence delivers world-class transcription accuracy. Adaptive orchestration dynamically switches between Metal and the Apple Neural Engine to balance speed and battery life.
If you have Dyslexia, ADHD, or just tired eyes, reading long docs is a grind. OneSentence turns any text into professional audio instantly. No robotic voices—just clear, natural speech that helps you stay in the flow, reduces strain, and supports comprehension.
Listen to emails, docs, and articles to bypass visual processing challenges.
Uses Accessibility APIs to read selected text instantly without complex setup.
Supertonic models are specialized for English; other languages are not currently supported.
Using "Voice F4" (Supertonic) at 1.2x speed.
Your thoughts belong to you. OneSentence is built so we literally cannot see your data. The core application is 100% offline. No cloud APIs. No tracking. No compromise.
Yes! You can download OneSentence and use all Pro features completely free for 15 days. No credit card or account is required to start your trial.
Yes. It's built for anyone who finds reading or typing difficult—whether that's due to Dyslexia, ADHD, or just burnout. It uses AI to bridge the gap between your brain and your computer.
To maintain a lightweight app package, the high-performance AI models are downloaded securely on-demand during initial setup. OneSentence requires approximately 4GB of disk space to house these professional-grade local engines (Whisper and Supertonic).
Yes. Once the models are downloaded, you can be in the middle of a desert with no Wi-Fi and OneSentence will work perfectly. Your voice and text data never leave your machine.
OneSentence lives in your menu bar (top right of your screen). Click the waveform icon to access settings, or use the global hotkeys (Command+5 and Command+6 by default) to trigger functions instantly.
OneSentence includes built-in maintenance tools. In Settings > Maintenance, you can "Reset Settings" to start fresh, or perform a "Full Uninstall" which safely removes all application data. Both uninstall options offer an optional web-based survey to securely send us your feedback.