Voicemod

Voicemod is the best free voice changer & soundboard software for Windows (coming soon for Linux and Mac OSX). A simple online voice modifier and transformer with effects capable of converting your voice into robot, female or girl online. It’s great for games and chatting as an app. In addition, it integrates perfectly with Stream Deck and Streamlabs OBS.
Voicemod transformer works with VRChat, Discord, Overwatch, Fortnite, PUBG, Skype & CSGO. Use it for April Fools' Day or Halloween pranks too!