Porcupine

Porcupine: Wake word detection software that allows developers to integrate custom voice-activated commands into applications running on-device.

Porcupine is a wake word detection engine designed for real-time voice applications. It allows developers to integrate custom command activation into their software by processing audio directly on the device. This approach avoids cloud API calls, eliminates network latency, and ensures data stays on the user's device. The technology functions as a self-contained SDK that developers can embed into mobile, desktop, or embedded environments. By keeping the voice processing local, it provides a private and reliable alternative to cloud-dependent voice assistants.

Porcupine at a glance

Best for: Software engineer
Runs on: mobile, desktop, web, embedded
Pricing: Free trial available; contact sales for enterprise support and specific pricing plans
Released: March 2018
Category: AI audio tool
Website: picovoice.ai

Key features

On-device wake word detection
Custom wake word creation
Self-contained SDK architecture
Low latency voice processing
Privacy-focused local execution
Support for mobile, desktop, and embedded platforms

Use it for

Building voice assistants
Creating hands-free user interfaces
Implementing voice-activated application controls

Alternatives to Porcupine

Moonshine — Runs entirely in your browser with no audio leaving your device.
Willow — Fast, private, open source voice control using local hardware.
sherpa-onnx — Runs complex audio AI tasks offline on local devices and embedded hardware.
whisper.cpp — It provides high-performance, offline speech recognition on diverse hardware.
WhisperLive — It provides real-time speech-to-text using multiple backends like Faster Whisper and TensorRT.
Pipecat — Builds real-time voice and multimodal agents with frame-level control.
PaddleSpeech — It offers state-of-the-art models and streaming systems for speech tasks.
Piper — Runs locally and offers fast neural text-to-speech synthesis.
Superwhisper — Transcribes speech offline and online with custom AI modes and templates.
browser-whisper — Transcribes audio and video locally with zero servers involved.
AssemblyAI — Industry-leading speech models deliver high accuracy and low latency for voice applications.
RealtimeSTT — Provides fast local speech recognition with voice activity detection and wake words.

All Porcupine alternatives