Voice to text without sending audio to a server
Most speech-to-text services upload the recording before they can process it. Murmur runs the speech recognition model on your phone instead, so the audio and transcript stay under your control.
Voice to text
Turn voice recordings into searchable text — offline
Murmur is a voice-to-text app that records or imports audio, transcribes it on your device, and labels who said each line. No account, no upload to Murmur servers, and no network required after the speech model is downloaded.
More useful than a plain transcript
Every line is timestamped and labeled by speaker. Search for a phrase, tap a line to replay that sentence, translate the transcript, or export it as text, Markdown, PDF or Word.
Record now or transcribe a file you already have
Use Murmur as a voice recorder, or import an existing audio or video file. Both paths use the same on-device transcription and speaker-identification pipeline.
Use cases
Audio file transcription
A voice memo, a meeting somebody else recorded, a lecture, a video file. Import it into Murmur and get a transcript on your own device, with every speaker labeled and every line replayable.
Meeting transcription
Put the phone on the table, hit record, and stay in the conversation. Murmur writes the meeting down as it happens and labels every line with the person who said it — on your device, without sending the room to anyone else.
Language learning
Real speech, written down and translated, with a replay button on every sentence. Import the audio you actually want to understand and work through it line by line.
Common questions
Does voice-to-text work offline?
Yes. After a one-time speech-model download, transcription runs entirely on the device with no internet connection.
Can it tell different speakers apart?
Yes. Murmur performs speaker diarization to separate voices, labels each transcript line, and can recognize people you have named in earlier recordings.
Can I transcribe an existing recording?
Yes. Import audio or video already on the device and Murmur converts the speech to text locally.
Start with your next conversation.
Download Murmur, download a speech model once, and every recording after that is transcribed on your own device — meetings, interviews, lectures, ideas on a walk.
Free to download · No account · Works with no signal
On iPhone and iPad the free version transcribes the first 20 minutes of each recording; Murmur Pro is a one-time purchase that lifts the limit. On Android, transcription is currently free with no recording-length limit.