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 Neural Engine and GPU for zero-latency processing without draining your battery.
Switch between microphones and speakers directly from the menu bar. Perfect for power users with complex audio setups.
Tired of monthly fees? OneSentence is a comprehensive utility with a simple model. One-time purchase, no subscriptions.
OneSentence provides a seamless interface for your favorite tools. Dictate directly 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 Large-v2 model, OneSentence delivers world-class transcription accuracy without ever needing an internet connection.
Transform long-form content into a professional narrated experience. OneSentence uses advanced Supertonic diffusion models to provide a pro-audio listening experience that sounds like a studio narrator, not a computer.
Fine-tune the "Diffusion Steps" to choose between ultra-fast generation or studio-grade quality.
Works in any application with a simple global hotkey.
Supertonic models are trained only on English data; outputs in other languages are unsupported and may be unintelligible or offensive.
Using "Voice M1" (Supertonic) at 1.2x speed.
Your thoughts belong to you. OneSentence is built so we literally cannot see your data. The application is 100% offline. No cloud. No tracking. No compromise.
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 "Prune Models" to free up space while keeping your settings, "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.