Push to talk
A physical keypress makes the recording boundary explicit. Capstan listens only when you ask it to.
ON-DEVICE DICTATIONVERSION 0.1.0
macOS preview available
Capstan
Speak here. Type anywhere.
Hold a key, speak, and release. Capstan turns your voice into cleaned-up text and places it wherever your cursor already is.
CAPSTANVOICE INPUT PROCESSOR
READY
HOLD KEY TO SPEAK
LOCAL ENGINE · INPUT 01
01SIGNAL PATH
The shortest path from thought to text.
On your device
Speech recognition can run locally with Apple SpeechAnalyzer or Parakeet, without sending every utterance to a server.
Types anywhere
The result lands at the current cursor, so your documents, messages and tools remain where the work lives.
Cleans as it goes
Formatting and personal dictionary corrections turn raw recognition into text that is ready to use.
Focused by design
No new editor, inbox or account-shaped workspace. Capstan is an input instrument, not another destination.
Built for recovery
Recent dictation can be replayed or repaired without retaining a permanent archive of your microphone audio.
02OPERATION
Three movements. One finished sentence.
- 01
Place the cursor
Choose any editable field in the application you already use.
- 02
Hold and speak
Keep the push-to-talk key down for exactly as long as the utterance lasts.
- 03
Release to type
Capstan transcribes, cleans up and inserts the finished text at the cursor.
03DOWNLOAD
Bring Capstan onto your device.
The macOS app is used in daily work. This preview disk image is signed with a Developer ID, notarized by Apple and stapled for offline verification.
RELEASE0.1.0
CHANNELPREVIEW
STATUSNOTARIZED
PLATFORM 1
macOS
macOS 26 or laterPLATFORM 2
Windows
MACOS RELEASED 30 August 2026 · 9.8 MB · SHA-256499c6637cafeda863908e67f7db26ff7f05a06e7075861eed82405cfb55e77f0
Windows is implemented and exercised in CI, but nobody has yet held the key and spoken into a real Windows microphone. It will not be presented as a working download until that pass is complete.