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Dictation
Hold the shortcut in any app and speak. Your words, transcribed on your Mac, appear at your cursor.
How it worksSpeak instead of typing, in any app on Mac and Windows
Free dictation that runs on your Mac, with no account. Hold a shortcut, speak, and Murmur pastes your words where your cursor is.
For Apple silicon Macs. Download for an Intel Mac
Morning. I'm going through the sync engine today to size the migration.
Can someone confirm the launch date before I send the update?
The spec is done. Waiting on the final estimate.
What Murmur does
Your voice, written down where you need it
Meetings on Mac
Record a call on your Mac and get a summary of who said what, written by ChatGPT. No bot joins.
About meetingsWindows beta
Dictation now runs on Windows 10 and 11. Meetings remain on the Mac for now.
About the betaFeatures
Made for daily use
01 / 04
Meetings · macOS
Turns meetings into notes
Murmur records your microphone and your Mac's sound, so no bot joins the call. Afterwards, through your ChatGPT account, you get a summary and a transcript of who said what.
- Start and stop with ⌃⌥⌘M
- Speakers told apart on Apple silicon
Q4 roadmap reviewOct 16, 10:00 AM
Me, Sam, Priya and Alex agreed on the Q4 priorities and set a launch date for offline mode.
Decisions
- Offline mode ships first, targeting November 18
- The sync conflict screen moves to the December release
- The analytics dashboard redesign is paused until January
- Release notes go out every Friday from now on
Action items
- Priya — finalize the offline mode spec — by Tuesday
- Alex — estimate the migration work for the sync engine
Vocabulary
Gets your names right
Add the names and terms you use, and Murmur spells them correctly every time. When you fix a name right after a dictation, Murmur learns it on its own.
Thanks to Priya for leading the design review this morning. We agreed to move the desktop app to Tauri before the next release, and to transcribe on the Mac, with Codex only for the cleanup. Mathéo will share a first build on Thursday. Priya and I will test it on Friday and send our notes by Monday.
Privacy
Private by design
When Murmur transcribes on your Mac, your audio stays there. With ChatGPT connected, only the text goes out for AI cleanup, and audio goes to the cloud only when the local model can't help. History marks those dictations.
When you choose the cloud, and for meetings, the audio goes to ChatGPT. Your history, recordings, meeting notes and Insights stay on your computer, and the code is open for anyone to check.
Murmur in numbers
The download count is read live from the GitHub releases.
downloads on Mac and Windows
25languages transcribed on your Mac
Freeno subscription or API key
MITopen-source license
Windows beta
Murmur on Windows
The beta brings dictation to Windows 10 and 11 on x64 PCs. It uses the same Codex session, signed in with your ChatGPT account.
In the beta
- Dictation in any app
- Cleanup
- Insights
- History and custom words
Not yet
- Meetings
- Automatic updates
- Local transcription
Questions and answers
Is Murmur free?
Yes. Murmur is free and open source under the MIT License, with no subscription. Transcription on your Mac has no quota.
Which computers does it run on?
Any Mac with macOS 10.15 or later, Apple silicon or Intel. Transcribing on the Mac itself needs macOS 15 or later on Apple silicon, or an Intel Mac; other Macs transcribe in the cloud with a ChatGPT account. The Windows beta runs on Windows 10 and 11, on x64 PCs.
What does the Windows beta include?
Dictation in any app, cleanup, Insights, History and custom words. Local transcription, meetings and automatic updates are not available yet on Windows: the beta transcribes with your ChatGPT account.
Do I need an API key or an account?
No. On a Mac, Murmur transcribes on the computer itself, with no account and no API key. A ChatGPT account is optional: sign in to Codex with it to add AI cleanup, more languages, cloud transcription and meetings. The Windows beta needs that account.
Is my voice private?
When Murmur transcribes on your Mac, your audio stays there. With ChatGPT connected, only the text is sent for AI cleanup, and audio goes to the cloud only when the local model can't help; History marks those dictations. When you choose the cloud, and for meetings, the audio goes to ChatGPT. Your history, recordings, meeting notes and Insights stay on your computer.
Does a bot join my call?
No. Murmur records the sound on your Mac, so nobody joins the call and the other participants see nothing new.
Which Macs can record meetings?
Recording the other participants needs an Apple silicon Mac with macOS 14.4 or later. From macOS 15, Murmur also tells the speakers apart on the Mac itself. Meetings are transcribed and summarized through a ChatGPT account.
Does it work offline?
Yes for transcription on a Mac. Once the local model is downloaded, you can dictate without a connection. AI cleanup and meetings need the internet, and so does the Windows beta.
How do I install it on a Mac?
Open the DMG and drag Murmur to Applications. On first launch, Murmur offers to download the speech model, about 500 MB on Apple silicon and 740 MB on Intel Macs.
How do I install the Windows beta?
Download the setup file from the latest pre-release on GitHub and run it.
More details in the README on GitHub.
Download
Free on the Mac, in beta on Windows
For Apple silicon Macs. Download for an Intel Mac