Freeware - Cymatics Deja Vu VST Plugin

https://cymatics.fm/products/deja-vu-plugin

Deja Vu was designed to completely change the vibe / feeling of any sound by time-stretching and pitch-shifting in a musical way. This “slowed down” atmospheric like effect can be heard on countless modern pop and hip-hop records. Providing you with full creative control over the timing and rhythm of audio, this plugin has become one of our team’s favorites. Deja Vu includes 9 unique time signatures to shift through, with customizable parameters to switch up the outcome in real time.