Say it. Watch it appear. murmur converts your speech to text everywhere you type on Mac — offline, private, and instant.
The gap
Every day you send voice messages on WhatsApp, iMessage, Telegram. You prefer it over typing. Then you sit down at your Mac and the keyboard takes over — every Slack message, every email, every doc, back to typing.
murmur closes that gap.
Why murmur
Not a browser extension. Not a subscription SaaS. murmur is native, lightweight, and stays out of your way.
All transcription runs on your Mac via whisper.cpp on Apple Silicon. No network call, no API key, no round-trip latency. Works on a plane.
Audio never leaves your device. No account to create, no data to breach. The privacy promise is architectural — there is nowhere for your audio to go.
Slack, Notion, email, Terminal, code editors — anywhere there's a text field. One hotkey, any app, instant paste. System-wide, no exceptions.
Built for M1, M2, M3, M4. Transcription runs on Metal and CoreML — faster than real-time, minimal battery draw, nothing in the background.
Privacy
Other apps certify their security, then send every word you speak to their servers. murmur is different at the architecture level. There is no server to send audio to.
One shortcut
One keyboard shortcut. Any app on your Mac. Your words appear the moment you release.
Hold to record · Release to transcribe
Pricing
No subscription required. Own it outright with a lifetime license.