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 pricing Free
This tool is free to use, with no credit card required.
Verify on the official pricing page.
Get started freeOpen Voice OS user reviews
Based on 4 reviews, 100.0% of users recommend Open Voice OS, rated highly for quality results.
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Open Voice OS's key features
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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)
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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
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Offline-capable core (ovos-core can operate without a backend internet server; some skills and plugins work fully offline)
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Multiple installation methods and prebuilt images: Docker installer, Python virtual environment installer, and downloadable Raspberry Pi/Mark II images
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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
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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
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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
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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
Who is it for?
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Voice assistant developers
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Product managers
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System administrators
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Voice technology educators
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Voice enthusiasts
