DOWNLOAD

Download each component separately.

The Native Host for the Chrome extension and the standalone GUI for direct URL entry are different programs.

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NATIVE HOST

Chrome Native Host Setup

Connects the Chrome extension to the local Windows conversion engine. This is not the standalone GUI.

Required for the Chrome workflow

Registers Native Messaging
Passes the current video from Chrome
Provides the local background bridge

Install Native HostQueryBotAudioSetup.exe

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WINDOWS GUI

QueryBot GUI app

A separate desktop application where you can paste YouTube URLs directly.

Single video / playlist FLAC conversion
FLAC library · tag/cover editing
HiBy discovery · transfer · file management

Download GUI appSet the GUI installer URL separately in config.js

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CHROME EXTENSION

Chrome extension

A browser extension that sends a conversion request from the current YouTube page.

Run directly from YouTube
Local communication through the Native Host
Pass requests to the Windows app/engine

Add to ChromeChrome Web Store

ImportantQueryBotAudioSetup.exe is the Native Host installer. It is different from the direct-URL GUI app. When the GUI installer is ready, set guiDownloadUrl in assets/config.js and the button will become active.

View installation guide

WHICH ONE?

Which components do I need?

What you want to do	Native Host	GUI app	Chrome extension
Convert from a button on YouTube	Required	Depends on the setup	Required
Paste a URL and convert directly	Not required	Required	Not required
FLAC library / tag editing	Not required	Supported	Not required
HiBy file management	Not required	Supported	Not required