What is Open Voice OS?

Open Voice OS is an open-source, community-driven voice AI platform for building customizable voice assistants across embedded, single-board, and desktop systems. It supports Raspberry Pi, Mark I/II hardware, Linux desktops, and Docker containers for multi-platform deployment.

A plugin-based STT and TTS architecture enables online and self-hosted offline options (e.g., Vosk, Mimic3) for speech recognition and synthesis. Configurable wake words, a customizable UI, and extensible skills enable smart home control, media playback, timers, and custom voice workflows.

Installation options include prebuilt images for low-spec devices, Docker containers, and a Python virtual environment for development. The project emphasizes privacy and security and maintains compatibility with Mycroft components while enabling independent contributions.

Open Voice OS user reviews

Based on 4 reviews, 100.0% of users recommend Open Voice OS, rated highly for quality results.

recommend

don't

4 reviews

Liked for

Quality results 4 of 4

Worth the price 4 of 4

All key features 4 of 4

Good integrations 4 of 4

Easy to use 3 of 4

Would you recommend Open Voice OS?

Recommend this tool?

Open Voice OS's key features

Plugin-based STT and TTS architecture supporting online services and local/offline engines (e.g., Vosk, DeepSpeech) and multiple TTS options (e.g., Mimic3, Google TTS, Amazon Polly)
Multi-platform support for embedded/headless devices, single-board computers and screens, Raspberry Pi (3B/3B+/4/Zero 2), Mark I/II, Linux desktops/laptops, and Docker containers
Offline-capable core (ovos-core can operate without a backend internet server; some skills and plugins work fully offline)
Multiple installation methods and prebuilt images: Docker installer, Python virtual environment installer, and downloadable Raspberry Pi/Mark II images
Open-source, community-driven platform with an enhanced reference fork of Mycroft-core to provide extra functionality while maintaining compatibility

Open Voice OS use cases

Build a privacy-first home voice assistant on a Raspberry Pi using Open Voice OS without relying on cloud services, leveraging offline STT/TTS, configurable wake words, and self-hosted models to control smart-home devices and run local automations
Deploy a containerized, offline voice interface for industrial or embedded systems with Open Voice OS to run on single-board computers or Docker, add custom skills for equipment monitoring and alerts, and keep all audio and data on-premises for compliance-sensitive environments
Create a multilingual, hands-free Linux desktop assistant for developers and power users using Open Voice OS by integrating plugin-based speech-to-text and speech synthesis, extending skills for task automation and documentation lookup, and self-hosting models for low-latency, private voice interactions