Speak once. Paste clean text anywhere on your Mac.
Cordierite is a dictation app for Apple Silicon Macs. Hold a hotkey, speak in English or Japanese, and paste the on-device transcript into the app you are already using.
Download
Requires macOS 26 or later on Apple Silicon. After opening the app, use Permission Doctor to enable Microphone, Input Monitoring, and Accessibility permissions.
Basic features
The free app is designed for everyday short-form dictation.
- Hotkey dictation with Hold to Talk or Toggle mode (default: Right Option)
- Apple Speech by default; download and use Whisper models as needed
- Paste cleaned text into the focused app and restore the text clipboard when possible
- User dictionary for common misrecognitions (small dictionary planned for the free plan)
- Light text cleanup: trim whitespace, adjust punctuation, optional filler removal
- Permission Doctor for microphone, hotkey, and paste setup
Security
All transcription runs on device. Nothing is stored in the app.
Free / Pro
Basic dictation, basic Whisper use, paste behavior, security fixes, and bug fixes are not planned as Pro-only features.
Free
- Apple Speech dictation
- Basic local Whisper transcription
- Hold to Talk and Toggle modes
- English and Japanese language selection
- Clipboard paste and text cleanup
- Small user dictionary planned for basic corrections
Pro (planned)
USD 3/month
- Unlimited user dictionary
- App-specific and project-specific dictionaries
- Dictionary import and export
- Writing presets for Slack, email, Markdown, GitHub issues, and commit messages
- App-specific profiles for language, dictionary, formatting, and paste behavior
- Long-form input mode and batch audio transcription