Home Assistant has achieved significant growth, reaching two million installations by 2025, following one million in 2024. This surge marks it as one of the fastest-growing open-source projects, according to the 2025 Octoverse report.
Initially developed by Paulus Schoutsen to control Philips Hue bulbs using the Hue API, Home Assistant has evolved into a robust smart home platform. Unlike mainstream systems such as Alexa and Google Home, which rely heavily on cloud processing, Home Assistant prioritizes user privacy through local control, minimizing data transfer to external servers.
This emphasis on privacy and compatibility is drawing users away from traditional ecosystems. The Open Home Foundation supports Home Assistant's commitment to privacy, offering users an alternative that enables local operation of smart home devices without reliance on third-party services.