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On-device speech to text for Mac
MurmurAI transcribes meetings, interviews, and files locally with WhisperKit, Parakeet, or Apple Speech. Speaker identification, AI cleanup, and subtitle export — without sending audio to the cloud.
A Whisper app that stays on your Mac
Search “Whisper for Mac” and most tools still ship audio somewhere. MurmurAI runs WhisperKit on Apple Silicon so the model and the audio never leave the machine. Parakeet is a fast English-friendly alternative. Apple Speech is available to every user at no extra cost.
Drop an MP3, WAV, M4A, MP4, or MOV file on the Transcribe screen — or record from the mic. Free tier covers shorter files; Pro removes the length cap.
Speaker identification
Label who spoke in meetings and interviews, then merge, split, and rename segments until the transcript is usable.
Export for editors
Save SRT or VTT for video, or plain text for notes. Refine with custom prompts before you export.
Chat with transcripts
Ask questions over a saved transcript with Ollama on your Mac or OpenAI with your own key.
Same app for dictation
A global hotkey turns MurmurAI into a Mac dictation app that inserts into any text field.
Why on-device instead of the cloud
Cloud speech to text is easy until the recording is a client call, a medical note, or anything you would not paste into a random website. Local models cost a download and some disk, then you transcribe on a plane or a locked-down network.
MurmurAI does not operate a transcription API. Your files stay in the app’s local library. Read the privacy policy for what is and is not sent when you use optional refinement or a Pro license.
Questions
Which engine should I pick?
WhisperKit for multilingual accuracy on Apple Silicon. Parakeet when you want a smaller, faster English-centric model. Apple Speech when you want zero extra download.
What Mac do I need?
macOS 14 Sonoma or later. M1 and newer Macs get the best WhisperKit performance.
Is Pro a subscription?
No. $24.99 once. Updates are included. See pricing.