Audacity does not have a built-in, one-click "Auto-Tune" feature (like Antares Auto-Tune or Melodyne). However, you can achieve a similar pitch-correction effect using a free VST plugin and Audacity's built-in pitch tools.
: Widely considered the best all-rounder for natural or aggressive tuning. how to do autotune on audacity
For true auto-tune on Audacity, download Graillon 2 or MAutoPitch . The built-in tools are not designed for auto-tune. Audacity does not have a built-in, one-click "Auto-Tune"
This gives the classic "robotic" Auto-Tune effect or subtle pitch correction. Audacity does not have a built-in