Mycroft.AI is an open-source voice assistant that can be tailored to individual needs and privacy preferences.
Best SEPIA Alternatives ranked by AI · updated Aug 2026
SEPIA is an open-source, self-hosted voice assistant framework for private personal assistants and smart-home control. It includes a server, clients, speech services, chat features, and customizable device interfaces.
Top 6 SEPIA alternatives
A privacy-focused voice platform that allows developers to create voice-enabled devices without sending any voice data to the cloud.
Free to use for personal projects, paid plans for businesses
Kalliope is a modular always-on voice-controlled personal assistant designed for home automation.
Leon is an open-source personal assistant who can live on your server. He does stuff when you ask for it. You can...
5
Rhasspy
Michael Hansen
Rhasspy is an open-source toolkit for building private, offline voice assistants on devices such as Raspberry Pi computers. It combines wake-word detection,...
Pros
- Runs locally without sending audio to cloud services
- Supports modular speech-to-text, intent parsing, and text-to-speech components
- Works well with Home Assistant and low-power self-hosted hardware
Cons
- No longer receives the same active development as newer voice platforms
- Setup is more technical than Home Assistant Assist
- Natural-language understanding is weaker than cloud conversational platforms
Voiceflow is a user-friendly platform for designing and prototyping voice applications.
Pros
- Intuitive interface
- Collaboration features
Cons
- Limited customization options
- Focused on design rather than advanced functionalities
Free plan available, Paid plans starting at $29/month
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