Host developers... anyone know of "testing plugins" available?

Does anyone know of a plugin or plugins out there that are designed to test host capabilities…?

I’m thinking things like the ability to introduce a variable amount of latency, add a specified “tail” etc, as well as maybe some basic tone generation like generating a click etc.

Of course, I could develop this myself in JUCE, but I don’t want to reinvent the wheel if solutions already exist.

The VST3 SDK ships with a “hostchecker” plugin which can be used to test some of the host’s capabilities.


For checking host latency compensation, there is this one from SocaLabs:

They also have a bunch of other useful dev-oriented plugins, all for free.


@reuk @refusesoftware thanks… these are great suggestions!