Segure uma tecla, fale em português e solte. Em menos de um segundo o texto está colado, e a transcrição roda no seu computador.
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Speech to Text by Ciro Cesar Maciel: local dictation for the Mac. Press a key, speak, the text is typed where your cursor is. whisper.cpp, nothing uploaded.
Taken from the repository README
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Read the full README ↗Dictation for the Mac: press a key, speak, and the text is typed where your cursor is.
One of six free, open-source Mac apps by Ciro Cesar Maciel.
Transcription runs on your Mac, with NVIDIA Parakeet on the Neural Engine through FluidAudio. Your voice is never uploaded: the audio becomes text on your machine and is thrown away. No account, no minute quota, no telemetry. A native menu bar app in Swift: 22 MB on disk, about 60 MB of memory with the model loaded.
curl -fsSL https://blob.ciromaciel.click/tools/speech-to-text/install.sh | bash
The script downloads the latest .dmg, copies Speech to Text to /Applications and opens it.
Prefer the disk image? Download Speech-to-Text-macos.dmg. Open it and drag Speech to Text to Applications. It is signed with Developer ID and notarized by Apple, so macOS opens it with no warning.
On first start, macOS asks for two permissions: Microphone (to hear you) and Accessibility (to paste the text where your cursor is), and the app opens on Transcription to download the speech model (643 MB, once).
| Shortcut | What it does |
|---|---|
| Cmd + Shift + Space | Dictate. Toggle by default; hold-to-talk with double tap for hands-free is one setting away |
| Cmd + Shift + T | Dictate and paste the text translated into the language you picked (optional, see below) |
| Cmd + Option + V | Paste the last transcription again |
| Esc | Cancel while recording; nothing is pasted |
Every shortcut can be changed in the settings window, opened from the menu bar icon.
| Feature | Detail |
|---|---|
| Local transcription | NVIDIA Parakeet on the Neural Engine, in the app's own process. On Brazilian Portuguese it made fewer errors than Whisper large-v3-turbo (3.6% against 3.7% on short sentences, 3.5% against 21.6% on two-minute dictations, where whisper.cpp dropped whole sentences), in about 80 MB instead of 2 GB. Two minutes of speech become text in about half a second |
| Languages | The 25 European languages Parakeet knows, Portuguese and English included |
| Interface | English and Brazilian Portuguese, following the Mac's language |
| Silence | Parakeet returns nothing for silence and room noise, so a press with no speech pastes nothing |
| Microphone | Opens on the shortcut and a tone says when to speak; closed between dictations, so the orange dot is off. Optionally kept ready, with no wait and the last 300 ms kept |
| Glossary | Names, brands and acronyms that Refine writes the way you registered them |
| Refine and translate | Optional. Cleans up hesitations or translates the dictation through OpenRouter, with your own key and the model you pick |
| History | What you dictated, text only, kept on your Mac for 7 or 30 days, or only in memory |
| Clipboard | Holds the last dictation, which is pasted from it; what it held before is replaced |
What leaves your Mac, and only then:
Nothing else. The interface font is bundled with the app, there is no analytics and no account. The OpenRouter key is kept in the macOS Keychain.
You need macOS 14 or later on Apple Silicon and the Xcode Command Line Tools (Swift 5.10 or later).
git clone https://github.com/ciro-maciel/speech-to-text.git
cd speech-to-text
scripts/build.sh # → dist/Speech to Text.app
The build is a Swift package (FluidAudio is its one dependency) wrapped into the app bundle by scripts/build.sh. The speech model is not in the repository: the app downloads it on demand into ~/Library/Application Support/speech-to-text/models/parakeet-ultra.
Without a Developer ID certificate the build is signed ad hoc, so macOS asks for Microphone and Accessibility again after each rebuild. scripts/dist.sh bumps the version, builds, packs the .dmg, has Apple notarize it (keychain profile notary) and installs it.
Issues and pull requests are welcome. See CONTRIBUTING.md.
MIT. FluidAudio, the Parakeet model, Montserrat and the icons keep their own licenses: see NOTICE.
I build software on my own, with a team of AI agents, and open what I can. Six native Mac apps, all free, MIT, signed and notarized by Apple, in English and Brazilian Portuguese: Cleaner, the Mac cleaner that shows you everything before it deletes anything · Screenshots, capture, annotate and record the screen, with nothing leaving your Mac · Speech to Text, dictation by shortcut, with Parakeet running on your Mac (this one) · Assistant, Claude Code by voice · Windows, snap windows into place with a shortcut or by dragging them to the edge · Text to Speech, select text in any app and hear it read aloud.
Beyond the apps: free tools for the browser, books, and Infrastructure, the infrastructure AI agents already know how to run.
Follow along. Follow @ciro-maciel for the next open-source apps, click Watch → Custom → Releases above for every new version, and see how it is all made on YouTube and at ciromaciel.click.