Aria hears you, writes what you say, and reads text aloud. It's a voice assistant for macOS and Linux, with all speech processing on your machine. It also talks to your AI agents and keeps the conversation going. They get your words, never your audio.
The macOS app brings setup, settings, history, and keyboard shortcuts to your menu bar.
What it does
- Dictate into any app on macOS, or to the clipboard on macOS and Linux.
- Ask your AI agent by voice, and keep the conversation going.
- Speak text aloud.
- Wake on a word you choose, with your own model.
- Listen to system audio on macOS and transcribe it, labeled by speaker.
- Learn your project's vocabulary, to help spell its names right.
Install
Download the macOS desktop app. Drag Aria to Applications, then open it for guided setup.
Or use Homebrew to install the app and the aria command:
On Linux x86_64, the installer checks the download and starts setup:
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Build from source
A source build runs as target/release/aria in the examples above.
just app builds the macOS menu bar app with the daemon inside, into
clients/build/mac/Build/Products/Release/. It needs Xcode and XcodeGen.
Engines
- Speech recognition: Whisper, Parakeet, Moonshine, Nemotron, Parakeet MLX
- Speech synthesis: Kokoro, Qwen3-TTS, system voice
- Wake word: openWakeWord, livekit-wakeword
Libraries
You can use these Rust crates in your own projects, without the Aria daemon.
aria-kit: audio capture, streaming transcription, text cleanup, speaker tracking, and shared engine interfacesaria-stt: speech-recognition enginesaria-tts: speech-synthesis enginesaria-wake: wake-word detectionaria-speaker: speaker embeddingsaria-segmentation: speaker segmentationaria-web: the dictation pipeline in the browser, through WebAssemblyaria-primitives: process, file, and socket building blocks
Contributing
See CONTRIBUTING.md. Contributors sign a CLA on their first pull request.
License
- The daemon, CLI, macOS app,
aria-bench, and the rest of this repository: GPL-3.0-only. - The Aria name and logo: reserved.
- The toolkit crates,
aria-bench-speaker, and the protocol inproto/: Apache-2.0. - Copied third-party material: THIRD-PARTY-NOTICES.md.