VRChatboxApp

Shows time and FPS in chatbox (updates every 2 seconds)
Shows the active application if it's not VRChat (useful when chilling on desktop while alt-tabbing to other things)
Input chat with external window
- Allows you to continue chatting on desktop after taking off your headset and loosing control of VRChat
- Chat persists until cleared
- Chat messages are appended so you have some chat history
- Able to update chatbox instantly while avoiding spam timeout

Download latest build from releases and just run the executable.

If it doesn't work, run it as administrator, or add your user to the "Performance Log Users" group: open "Computer Management", find your user, type in this exact group name, then log out and back in.
This app uses VRChat OSC; make sure to enable it.
You cannot use in-game chatbox input, hence the external window.
Anti-spam-timeout isn't foolproof apparently; you might trigger it if you spam chat input of this app.
The timeout may also trigger after VRChat freezes (such as when loading a world).