Blah³
Local Voice Toolkit for macOS
Speech-to-Text and Text-to-Speech with AI models running 100% offline on Apple Silicon

Everything you need for voice on macOS
Powerful features, all running locally on your Mac.
Dictation Mode
Press a customizable hotkey (default ⌘ + ⇧ + D) to start dictating anywhere. Your voice is transcribed locally in real-time.
Screen Reader
Select text and press a customizable hotkey (default ⌘ + ⇧ + S) to hear it spoken aloud with natural-sounding voices.
Model Manager
Download and manage AI models directly in the app. Choose from tiny to large models based on your needs.
100% Offline
All processing happens on your Mac. No internet required, no data leaves your device. Complete privacy.
All hotkeys are fully customizable in settings
See it in action
Watch how easy it is to use voice commands anywhere on macOS.

Press the hotkey, speak, and your words appear instantly as text.
Check your Mac's compatibility
Find out which models work best on your system.
Recommended Models
Performance
Balanced speed & accuracy
Estimated Speed
~3x realtime
With 16GB, you can comfortably run whisper-small or whisper-medium for excellent transcription quality while maintaining good speed.
Ready to speak your mind?
Download Blah³ and experience voice control that respects your privacy. No subscriptions, no internet required, no data leaves your Mac.
Requires macOS 14.0 (Sonoma) or later • Apple Silicon (M1/M2/M3/M4)