Speak freely. Stay private.
Private AI dictation for Mac. Speak into any app with a text field, even offline.
Think out loud. Not out in the cloud.
You talk
Mumble, ramble, switch languages mid sentence. The pill just listens.
Voice model
Turns your speech into text, word for word.
✦ On deviceLanguage model
Works on that text: filler out, punctuation in, your format.
✦ On deviceThe text
The finished words, punctuated and shaped, already sitting where your cursor was.
Everyone says private. We built it that way.
| Mumble | Cloud dictation | Other local | |
|---|---|---|---|
| Voice & transcript stay on your Mac | ✓ | × | ✓ |
| Dictation works offline | ✓ | × | ✓ |
| AI cleanup & transformation | ✓ | ✓ | × |
| Mixed languages, auto-detected | ✓ | ✓ | × |
| On-device AI for multiple languages | ✓ | × | × |
| Unlimited free dictation | ✓ | × | × |
| One-time purchase | ✓ | × | ✓ |
One key, everything it can do
Simple keys, many outcomes.
fn is only the default. If you and
that key have history, appoint any other in Settings.
Hands free, the long take
For the thoughts that need a while. Double-tap fn, wander as far as you like, then tap return and it lands in one piece.
So we need to finish the copy, ping design, and book the room for Friday. Sam is out until Thursday, so the review moves, and the deck needs one more pass before it goes out.
Arranged your way,
down to the last detail
AI Actions
Choose what Mumble does with your dictated text
Magic AI Actions
The search box fills itself
Say where you’re headed. Mumble opens the browser, types your search, and lands you right at your destination.
The question travels
while Mumble opens the door.
Your question heads to ChatGPT or Claude the moment you speak. The chat opens mid-reply.
Speak in any mix,
land in any language
Mumble takes down whatever languages turn up, in whatever order they arrive. Then it awaits instruction: keep everything as spoken, or bring it all into one.
このファイル、meeting の前に田中さんに share しておいて。
Your words, spelt properly
Names, jargon, the odd acronym. Spell one out for Mumble and it remembers. On Pro, it’s context aware and picks up new words on its own.
Not a feature yet? Write it yourself
“can you send me the launch notes when you have a chance”
¿Me mandas las notas del lanzamiento cuando puedas?
Good questions
To be or not to be.
Yessss. Unlimited dictation, no word caps, no weekly limits, no account needed. Pro adds the clever bits: AI cleanup, Transforms, custom prompts, voice actions. There’s a 60-minute trial if you want to try Pro first.
Never, unless you open the door yourself. Everything, audio, transcript, cleanup, stays on your Mac and trains no one’s AI. The exceptions all need your hand: plugging in your own AI provider, or using an online voice action like Open, Ask, or GIF. Even then only text goes where you point it, never audio.
Even at 35,000 feet. Everything runs on your Mac with 16GB of memory or more; with less, cleanup borrows your own AI key. The online-only bits, like web search and Ask AI, will quietly wait for you to land.
That’s rather the point. On supported hardware, nothing you say touches a third-party server: no audio to store, leak, or train on. Lawyers, doctors, and anyone under NDA can dictate knowing their words never leave the machine.
Accurate enough that people forget it runs locally. The on-device model matches leading cloud dictation, and it copes with accents, long takes, technical vocabulary, and mixed languages.
Forty and counting, from English and Chinese to Hindi and Arabic. Detection is automatic, and you can switch languages mid-sentence without touching a setting.
Any app with a text field: Mail, Slack, Notion, Google Docs, browsers, Cursor, VS Code. Text lands right at your cursor, so there’s no transcription window and no copy-pasting.
Teach it once, and it spells them right for good. The Dictionary holds your names, acronyms, and product terms: manual entries on Free, and on Pro it picks up new ones as you dictate. Especially handy for prompts and commit messages in Cursor or Claude Code.
That’s what Transforms are for. The same take can come out as clean text, bullets, an email, or anything a custom prompt can describe. It all runs on your Mac if the hardware allows.
Strangers welcome. No account, no name, no questions: just download and start talking. Even the free Pro trial starts without signing in. Signing in exists only for buying or restoring a licence.
Heavens, no. Pro is a one-time purchase: $50 early bird (normally $100), with a 30-day money-back guarantee and three Macs per licence. Pro includes 12 months of updates and support, and everything you have keeps working after that.
macOS 14.2 and Apple Silicon, M1 or newer. Everything runs on-device with 16GB of memory. With less, transcription stays local and cleanup needs your own AI key.
Just mumble it
We’ll handle the rest. Typed, tidied, and none of your words leave your Mac.
Every download starts with 60 minutes of Pro, on the house. Free forever for everyday dictation. Pro is one purchase, with a 30 day money back guarantee. See pricing