3 Best Open Source Google Assistant Alternatives
A curated collection of the 3 best open source and self-hosted alternatives to Google Assistant in 2026.
Looking for a free, privacy-friendly, or self-hosted replacement for Google Assistant in 2026? The top open-source alternative is Home Assistant — Open source home automation platform supporting 1000+ devices with local control, powerful automations, custom dashboards, and voice assistant. No cloud required..
Other highly rated open-source Google Assistant alternatives include Gladys Assistant and Proton Lumo.
Open source home automation platform supporting 1000+ devices with local control, powerful automations, custom dashboards, and voice assistant. No cloud required.
Open source home automation platform supporting 1000+ devices with local control, powerful automations, custom dashboards, and voice assistant. No cloud required.
Privacy-first home automation platform that runs locally on your hardware, supports Zigbee, Matter, and MQTT, and lets you automate your home without coding.
Privacy-first home automation platform that runs locally on your hardware, supports Zigbee, Matter, and MQTT, and lets you automate your home without coding.
Privacy-first AI assistant from Proton
Lumo is a privacy-first AI assistant developed by Proton, designed to help you stay productive while ensuring your data remains secure and private. - Privacy-First AI: Built with Proton’s zero-access encryption and no-logs policy to protect your data. - Multi-Platform Support: Available as a web app, iOS, and Android application. - Personal & Business Plans: Tailored solutions for individuals and teams with enterprise-grade security. - AI-Powered Productivity: Features include chat assistance, image generation, and personalized AI experiences. - GDPR & HIPAA Compliant: Meets strict privacy regulations for professional and healthcare use. - Proton Ecosystem Integration: Seamlessly connects with Proton Mail, Drive, Calendar, and other Proton services. Lumo is developed by Proton and operates as a cloud-based service with no self-hosting option. The application is available through Proton’s infrastructure, ensuring high availability and security. For businesses, Proton provides dedicated support and compliance certifications (ISO 27001, GDPR).
About Google Assistant
Google Assistant is your AI-powered personal assistant designed to help you get things done effortlessly. Whether you need to set reminders, control smart home devices, or get quick answers, Assistant is always ready to assist.
Key Features of Google Assistant
- Voice Commands: Control devices and perform tasks using natural voice commands like "Hey Google, set the temperature to 75 degrees" or "Hey Google, text Mom I'll be there in 10 minutes"
- Multi-Platform Support: Available on phones, tablets, smart speakers, smart displays, wearables, TVs, cars, and more
- Smart Home Integration: Works with Google Nest devices and third-party smart home products for seamless automation
- Personalized Assistance: Learns your preferences to provide more relevant help over time
- Google Ecosystem Integration: Deep integration with Google services like Search, Maps, Calendar, and YouTube
- Third-Party App Support: Works with apps like Spotify, Etsy, Nike Run Club, and Postmates
- Privacy Controls: Built-in privacy features and controls to manage your data and interactions
- Multilingual Support: Available in multiple languages and regions worldwide
Tech / Self-Hosting
Google Assistant is a proprietary cloud-based service developed and maintained by Google. It requires an internet connection to function and does not offer self-hosting options. The service is available through Google's official apps and devices.