Vosk-Api

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Vosk-API is an offline, open-source speech recognition toolkit that supports over 20 languages. It provides continuous large vocabulary transcription with zero-latency streaming API for various platforms.

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At a glance

Pricing

Open Source

Free tier

Yes

API

Yes

Skill level

Technical

About

What is vosk-api?

Vosk-API is an offline, open-source speech recognition toolkit designed for a wide range of applications. It supports over 20 languages and dialects, including English, German, French, Spanish, Chinese, Russian, and Japanese. The models are compact, typically around 50 MB, yet offer continuous large vocabulary transcription and zero-latency response through its streaming API. Vosk-API also features reconfigurable vocabulary and speaker identification capabilities. It provides speech recognition bindings for multiple programming languages such as Python, Java, Node.JS, C#, C++, Rust, and Go, making it versatile for developers. Vosk-API is suitable for various use cases, including chatbots, smart home appliances, virtual assistants, creating subtitles, and transcribing lectures or interviews. It scales efficiently from small devices like Raspberry Pi and Android smartphones to large server clusters.

Best used for

Ideal for developers and businesses who need to implement robust, offline speech recognition capabilities into their applications, devices, or services. Especially valuable for creating voice-controlled systems, transcribing audio content, and building virtual assistants without relying on cloud-based APIs.

Common actions

transcribe speech

enable voice control

integrate speech recognition

process audio offline

collaborationworkflowsautomated workflowdeepfakelow-code/no-codegithub copilotface swappingopen-source"AI Agents"

Capabilities

Key features

Offline speech recognition
20+ languages supported
Small model size
Streaming API
Speaker identification
Multi-language bindings

Target Audience

developersai/ml engineersembedded systems engineers

Integrations

Not yet documented

Pricing & Plans

Open Source

Free

FAQs

What programming languages does Vosk-API support?

Vosk-API provides speech recognition bindings for a variety of programming languages, including Python, Java, Node.JS, C#, C++, Rust, and Go. This allows developers to integrate the toolkit into diverse projects and environments.

Can Vosk-API be used on small devices?

Yes, Vosk-API is designed to scale from small devices to large clusters. It can be effectively used on resource-constrained hardware such as Raspberry Pi and Android smartphones, making it suitable for embedded applications.

Does Vosk-API require an internet connection for speech recognition?

No, Vosk-API is an offline speech recognition toolkit. Once the models are downloaded, it performs all speech processing locally on the device or server, eliminating the need for a continuous internet connection.

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Also listed in

This tool also appears in

Content & Design › Audio & Music Research & Education › Language Learning Coding & Development › Open Source & Models

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