YuaWorks Tool

YuaTool

Make streaming easier to start,
and a little more convenient for experienced streamers.

YuaTool is an all-in-one streaming support tool for karaoke streams, song requests, participation streams, overlay display, and comment retrieval.

Features

Karaoke

Now Singing / Setlist Management

You can manage the currently singing song, planned setlists, and song history. When connected to OBS WebSocket, timestamp creation based on stream elapsed time is also supported.

Comment Retrieval

Multi-Platform Support

Supports comment retrieval from YouTube, Niconico, and TwitCasting. Song requests and reaction detection can be linked with your stream flow.

Participation

Queue Management / NEXT Display

Manage waiting lists, active participants, completed history, NEXT display, and other tools for participation-based streams.

Overlay

Overlay Display

Easily add comments, Now Singing, reactions, timers, and other elements to OBS as browser sources.

How to Use

1

Run Setup.exe to install YuaTool.

2

Launch YuaTool.
The management screen will open automatically after startup.

3

Connect to the streaming service you want to use, such as YouTube, Niconico, or TwitCasting.

4

Add the Overlay URL to OBS as a browser source.

5

Use the features you need, such as karaoke support, participation management, and comment retrieval.

Support Plans

YuaTool can be used for free.
Support Plans are optional plans for those who want to support the continued development of YuaTool.

FREE

All main features are available for free

The main features of YuaTool are available even in the free version.
If you use YuaTool for free, please include the following credit in your stream description or a similar location.

All-in-one streaming support tool “YuaTool”

https://yuaworks.com/yuatool/
SUPPORT

Supporter

300 JPY / month
Your in-tool badge will become Supporter.
While subscribed, credit notation in stream descriptions is optional.

Become a Supporter
SUPPORT+

Supporter Plus

500 JPY / month
Your in-tool badge will become Supporter Plus.
While subscribed, credit notation in stream descriptions is optional.

Become Supporter Plus
SUPPORT PRO

Supporter Pro

1,000 JPY / month
Your in-tool badge will become Supporter Pro.
While subscribed, credit notation in stream descriptions is optional.

Become Supporter Pro
Manage or cancel your Support Plan here
Open billing management page

Download

YuaTool is currently available as v1.1.0-beta.
Please test it before using it in an actual stream.

YuaTool v1.1.0-beta

All-in-one streaming support tool for Windows

Version : v1.1.0-beta Release : 2026.06

Windows SmartScreen or security settings may show a warning when launching the app for the first time.

Download YuaTool v1.1.0-beta

Overlay Pack SDK

YuaTool supports the creation of custom Overlay Packs for its custom overlay feature.
The Overlay Pack SDK includes template files, recommended size references, and other files needed for creating your own Overlay Pack.

YuaTool Overlay Pack SDK v1.0.0

This is the official starter kit for creators who want to make original Overlay Packs.
It includes image templates, configuration files, and a production guide. Replace the images with your own designs to use it.

Version : v1.0.0 Format : ZIP For : Overlay Pack Creator

This SDK is intended for Overlay Pack creators. If you only want to use YuaTool normally, you only need to download the main YuaTool app.

Download Overlay Pack SDK

The SDK includes template.yotp.json, image templates, a production guide README, and other related files.

Created Overlay Packs can be distributed as ZIP files and imported from YuaTool’s Custom Template screen.

Overlay Packs created with this SDK may be distributed freely, whether free or paid. Commercial use, sales, and commissioned production are permitted.

If you use third-party assets, please make sure their license allows redistribution and commercial use.

Change Log

2026.06 / v1.1.0-beta

Added English and Traditional Chinese support. Added custom overlay import feature.

2026.05 / v1.0.0-beta

Released YuaTool v1.0.0-beta with support for karaoke streams, song requests, participation streams, overlay display, comment retrieval, and more.

Notice

YuaTool is an independently developed all-in-one streaming support tool.
Behavior may vary depending on your environment.

Comment retrieval features for YouTube, Niconico, and TwitCasting may stop working due to specification changes on each service.

Some OBS-related features are provided as Preview / experimental features.