Your Mac does the work.
Speech recognition and optional text editing run on your device. Once your models are downloaded, dictation works offline.
A closer look at privacyFree your voice. Find your flow.
A thought,
out loud.
Less between you and what you mean.
Turn your voice into words, anywhere on your Mac. Free, open source, and entirely local.
macOS 14+ · Apple silicon · No account needed
01 / SPEAK
Let the words
come to you.
An idea on a walk. A reply that needs a human touch. Press your shortcut and say what’s on your mind.
⌥spaceA little space to think.
02 / MAKE IT YOURS
A little order.
All your voice.
Your words, ready for wherever you’re writing. Keep them as spoken, make them readable, or give your ideas structure with Markdown.
Watch a thought become a note
Free & open source On-device transcription Starts with a 227.5 MB model Your shortcut, your way
From your mind to your Mac
Say it.
Keep going.
For the message you’ve been rewriting.
The idea you don’t want to
lose.
The list that’s easier said than typed.
-
01
Make a little space.
Click into a text field. Press your shortcut, or hold it down if that feels more natural.
⌥space -
02
Talk like yourself.
A tiny waveform lets you know the microphone is ready. Speak naturally; your Mac does the listening.
-
03
Let your words land.
Finish dictating. Murmello transcribes, optionally tidies the text, and pastes into your app.
A little order for your thoughts
You say it your way.
Make it read your way.
Keep it as spoken, make it readable, or turn it into Markdown. Optional local AI editing removes fillers, adds punctuation, and helps your words read naturally.
Your words
“Lisbon weekend list, book a table for Friday, save a few cafés in Alfama, and leave Saturday afternoon open to wander.”
Spoken, not typed.
Lisbon weekend:
- Book a table for Friday
- Save a few cafés in Alfama
- Leave Saturday afternoon open to wander
A little planning. More room to wander.
Illustrative examples. This website doesn’t access your microphone. Real results vary; review your words before sending.
Small app. Thoughtful details.
Feels right at home.
A quiet spot in your menu bar. The choices that matter, a click away.
Made for macOS
Good tools get
Good tools get
out of your way.
Set a keyboard shortcut or click your scroll wheel. Pick a voice model that suits your Mac. Choose a look that feels like you.
The real Murmello app, in light mode.
Start small. Choose freely.
Begin with the compact English model. Download a larger model or add multilingual dictation, with sizes and memory guidance shown in the app.
Find your modelMake it your own.
Keyboard or mouse. Hold or toggle. Light, dark, or system appearance. Optional Instant Start keeps your microphone ready between dictations.
The little questionsA little closer to home
Your voice.Your words.Your Mac.
Once your models are downloaded, the entire dictation process happens right here. Even with the Wi-Fi off.
Private by designA small space for big thoughts
Room for
your other apps.
Start with English dictation. Add more languages or a local writing assistant whenever you want. You only download the models you choose.
Meet the projects behind Murmello
To get started
1 GB
Free space recommended for setup.
Room for the app, the compact English model, and setup files.
Included English model227.5 MB
Actual storage varies with your models and macOS caches. Optional downloads add to it.
Compare all model download sizes
Speech recognition
Parakeet 110M
English · the starting point
Parakeet V2
English
Parakeet V3 Compact
English, Spanish + 23 languages
Parakeet V3
English, Spanish + 23 languages
Optional writing assistants
SmolLM2 360M
Compact English editing
Qwen3 1.7B
A larger multilingual editor
These are model file sizes, not total app storage or memory usage. Settings shows hardware guidance and available disk space before you download.
A note from the maker
Hi, I’m Tomas.
Tomas Godoy Pastore
I set out to build a free, open-source alternative to Wispr Flow: natural voice dictation that runs entirely on your Mac. That’s how Murmello was born.
Murmello brings together the things I enjoy working on: useful AI, native software, and the details that make a product feel good to use.
Native macOSOn-device AIProduct & interaction design
Building something thoughtful? I’d love to hear about your team, a potential role, or an interesting collaboration.
tomasgpastore@gmail.comBefore you say hello
A few
good questions.
Is Murmello really free?
Yes. The app is free to download and use, with no subscription, account, or per-minute charge. Speech recognition and optional AI editing run on your Mac.
What kind of Mac do I need?
An Apple silicon Mac (M1 or newer) running macOS 14 Sonoma or later. Start with Parakeet 110M; we suggest 8 GB of total RAM and 1 GB of free space for its setup. Larger models have their own recommendations. Intel Macs, Windows, and iPhone aren’t supported.
Does my voice leave my Mac?
Murmello does not upload your audio or dictation for processing. Audio is handled in memory, and the latest transcript stays available until you clear it or quit. Pasted text and clipboard contents are then handled by macOS and the apps you use. Model downloads contact external providers. Read the privacy notice.
Will it work in the app I’m using?
Murmello pastes into the active text field using macOS Accessibility. It works with many apps that accept pasted text. Some protected fields or apps may prevent automatic insertion; the transcript remains available to copy and paste manually.
Can I dictate in Spanish?
Yes, with either Parakeet V3 option in Settings → Models. The compact default is English-only. The V3 models support English, Spanish, and 23 additional languages with automatic language detection.
Why does it need microphone and Accessibility access?
Microphone access lets Murmello hear dictation. Accessibility allows global mouse shortcuts and automatic pasting. Optional Instant Start keeps the microphone connected while idle; that audio is discarded. You can manage these choices in Settings.
Does the AI editor always get it right?
No. Optional editing can improve wording and structure, but it can also make mistakes. Murmello checks for substantial changes and keeps the original when an edit fails those checks. You can recover the original from the menu. Always review text before sending it.
Where can I find the source and report an issue?
Explore the code and issues on GitHub. For questions, feedback, or a bug report, email Tomas. Please don’t include sensitive dictation in a public issue.
A little less typing starts here
Let your thoughts
find their words.
Free local dictation. A quiet little place in your menu bar.
Download for free
Version 0.4.3 · 224.9 MB
macOS 14+ · Apple silicon
Developer ID signed & Apple notarized
Open the DMG, then drag Murmello into Applications.
Verify your download
SHA-256: 702c01f42625ac93435f81b2cb4f2091d4ff6f5b09944e79c31929d2ccd9ec63