Apple Siri

Best Self Hosted Alternatives to Apple Siri

A curated collection of the 2 best self hosted alternatives to Apple Siri.

Voice assistant integrated across Apple devices (iPhone, iPad, Mac, Apple Watch, HomePod) that processes voice and text queries to control device features, run Shortcuts, send messages, provide answers, and automate tasks.

Alternatives List

#1
Leon

Leon

Leon is an open-source personal assistant that runs on your server, enabling privacy-focused automation through modular skills with text and optional voice interaction.

Leon screenshot

Leon is an open-source personal assistant designed to run on your own server and help you automate tasks through a modular “skills” system. It supports both text and voice interaction, with optional offline operation to keep data under your control.

Key Features

  • Modular skills architecture to add and share new capabilities
  • Text-based assistant via a web interface
  • Voice assistant capabilities with speech-to-text and text-to-speech (cloud or offline options)
  • Local/offline mode to reduce reliance on third-party services
  • CLI-based installation and management
  • Hybrid stack with a Node.js core and Python integration for certain NLP/skill components

Use Cases

  • Personal workflow automation (recurring tasks, quick actions, utility commands)
  • Building and sharing custom assistant skills for a household or team
  • Privacy-conscious local assistant for text/voice interactions

Limitations and Considerations

  • The project is undergoing a major architectural rewrite; the develop branch may be unstable and documentation may lag behind implementation

Leon is a good fit for users who want a customizable, privacy-oriented assistant they can extend with their own skills. Its modular design makes it suitable as a long-term personal automation hub as capabilities evolve.

16.9kstars
1.4kforks
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#2
Willow

Willow

Self-hosted voice assistant platform for ESP32 devices with on-device wake-word and command recognition, Home Assistant integration, and an optional inference server for STT/TTS/LLM.

Willow is an open-source, privacy-focused voice assistant platform designed for low-cost ESP32-S3 hardware. It provides fast on-device wake-word and command recognition and can optionally integrate with a self-hosted inference server for high-quality speech-to-text, TTS, and LLM tasks. (heywillow.io)

Key Features

  • On-device wake-word engine and voice-activity detection with configurable wake words and up to hundreds of on-device commands. (heywillow.io)
  • Integration with Home Assistant, openHAB and generic REST endpoints for home automation and custom workflows. (heywillow.io)
  • Willow Inference Server (WIS) option: a performance-optimized server that supports ASR/STT (Whisper models), TTS, and optional LLM inference with REST, WebRTC and WebSocket transports. WIS targets CUDA GPUs for low-latency workloads and includes deployment scripts and Docker compose support. (github.com)
  • Device management and OTA flashing via the Willow Application Server (WAS) with a provided Docker image to simplify onboarding. (heywillow.io)

Use Cases

  • Privacy-first smart-home voice control: local wake-word and command recognition that triggers Home Assistant automations without cloud transcription.
  • On-premises speech processing: self-hosted WIS for low-latency ASR/STT and TTS for accessibility, transcription, or edge assistant applications.
  • Developer integrations: embed Willow devices into custom REST/WebRTC workflows or use WIS to add LLM-powered assistants to local networks. (github.com)

Limitations and Considerations

  • Advanced WIS features (LLM, high-quality TTS) expect CUDA-capable GPUs and NVIDIA drivers; CPU-only setups are supported but significantly slower and may disable some features. (github.com)
  • Primary device target is the ESP32-S3-BOX family; other hardware may require additional porting or tuning. (heywillow.io)

Willow combines a small-footprint device runtime with an optional, high-performance inference server to enable private, low-latency voice assistants and on-premises speech workflows. It is actively developed with documentation, Docker deployment options, and community discussion channels for support. (heywillow.io)

3kstars
113forks
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Why choose an open source alternative?

  • •Data ownership: Keep your data on your own servers
  • •No vendor lock-in: Freedom to switch or modify at any time
  • •Cost savings: Reduce or eliminate subscription fees
  • •Transparency: Audit the code and know exactly what's running