Voice & Speech

Voicevox Client

VOICEVOX client library for text-to-speech with queue management

Status
Generally available
Last checked
Checked · Oct 11, 2026
License
Open source
Pricing
Free tier · from $0
Visit Voicevox Client Compare with alternatives

What it is

A JavaScript client library that facilitates text-to-speech synthesis using VOICEVOX, including features for managing a queue of requests. Ideal for developers looking to integrate high-quality TTS into their applications.

The @kajidog/voicevox-client offers a streamlined way to integrate high-quality text-to-speech into JavaScript applications with built-in request queuing, making it ideal for developers who need efficient and reliable speech synthesis capabilities.

When it fits — and when it doesn’t

A good fit for

  • Developers building web apps that require text-to-speech capabilities with efficient request handling

  • Educators looking to automate the creation of audio learning materials from written content

  • Teams developing voice-based interfaces for software applications

Look elsewhere if

  • Projects requiring real-time speech synthesis without queue management

  • Applications needing TTS in languages not supported by VOICEVOX

Known weaknesses

Each one links to the public issue, changelog or docs page it came from, where we have one.

  1. 01

    Limited language support

    VOICEVOX primarily supports Japanese, with limited support for other languages, restricting its use in multilingual applications

  2. 02

    Dependence on VOICEVOX backend

    The library's functionality is entirely dependent on the availability and performance of the VOICEVOX service, which can introduce external dependencies and potential downtime issues

  3. 03

    Incomplete documentation for advanced features

    Advanced configuration options and troubleshooting guides are lacking in detail, making it difficult to fully leverage the library's capabilities without extensive trial and error or community support

What it does well

  • Text-to-speech synthesis using VOICEVOX

  • Queue management for handling multiple requests efficiently

  • Easily integrable into JavaScript projects

Pricing

Free tier
YesOpen source — free to use
Paid from
$0
Model
Flat rate
Enterprise plan
No

Pricing not independently confirmed — check the vendor’s page.

Performance benchmarks

How Fast Is It?

Set up Voicevox Client

Setup steps, common gotchas and what to check after 30 days.

Open the setup guide →