Plugins & Resamplers

Below is a list of third-party tools for use in UTAU.


  • resampler – The default resampler.
  • moresampler – A resampler with powerful flags to control voice quality. Can also automatically generate otos.
  • fresamp11 – An older iteration of fresamp, considered a bit more stable. Has nasal quality without “F0” flag.
  • fresamp14 – A newer iteration of fresamp. Has nasal quality without “F0” flag.
  • TIPS – A resampler good for soft, breathy voices.
  • bkh01 – A resampler that tends to add a little bit of metallic buzz to sibilant consonants.
  • phavoco – “Phase Vocoder”
  • vs4u
  • world4utau (aka “w4u”) – A very picky resampler, only works on mono recordings.
  • EFB-GT – Good for solid voices.
  • tn_fnds – Another good resampler for soft, gentle voices.
  • utaugrowl – A resampler that has flags to add growl to the voice.


  • wavtool – The default UTAU wavtool.
  • wavtool2 – A slightly improved wavtool.
  • wavtool4vcv – A wavtool optimized for VCV and other strung-sound voicebanks.


  • Resampler Patcher – Makes most common resamplers render much faster.
  • Iroiro – An all-in-one plugin that converts between romaji and hiragana, among other things.
  • Lyric Diphonizer – A simple plugin that converts CV USTs to VCV.
  • autoVCCV 2.0 – Converts a UST from CV to CVVC by inserting the VC samples.
  • presamp – Plays a CV UST as CVVC. Can be customized with a “presamp.ini” & includes “wavtoolex”
  • utalis – A .wav-tracing automatic tuning plugin.

Additional Programs

  • Voicebank Aliaser – Automatically generates romaji or hiragana aliases for any style of Japanese voicebank.
  • vocalshifter – Allows for post-render .wav modification of pitch and other parameters.