GSnap

GSnap is an old plugin, but it’s still quite capable and fully compatible with modern DAWs. It was the first free autotune VST on the market. At first glance, GSnap seems similar to Graillon 2 and MAutoPitch. However, one excellent feature that sets it apart is the ability to tune the processed audio signal according to the MIDI notes on the input. In other words, you don’t have to rely on the plugin’s automatic pitch detection algorithm.

Instead, the user can feed the correct MIDI notes into the plugin and let it handle the rest. GSnap’s automatic pitch detection algorithm also performs well, though it lacks the formant-shifting features available in Graillon 2 and MAutoPitch. Unlike Graillon 2 and MAutoPitch, GSnap only works on Windows-based systems. However, it does come with a very well-written manual. The instructions are worth reading if you want to use GSnap as your go-to free autotune effect.