iZotope Vocal Doubler

Vocal Doubler, by iZotope, is a free plugin that fattens up a single vocal take into a natural-sounding double, without needing an actual second performance. It’s built around iZotope’s existing doubling technology, wrapped in a simple, interactive interface aimed at getting a good-sounding double quickly.

Features

• Natural vocal doubling that adds richness and depth to a single take.
• Interactive controls — drag up/down for stereo separation, left/right for human-like variation between the two voices.
• Light on CPU, so it’s easy to use across multiple vocal tracks in a busy session.

A quick way to thicken lead or background vocals when recording an actual double isn’t practical.

Compatibility

Free plugin from iZotope. Available in VST2 / VST3 / AU / AAX (64-bit only), for Windows & macOS.

Source : izotope.com