NNiceVois

All tools

Everything NiceVois does, in one place. The audio tools are free, with no sign-up.

Your voice

Train a voice

Turn recordings of your own voice into a portable RVC model: a .pth, an .index and a ZIP you keep.

Start from your file: Any audio · MP3 · WAV · M4A · FLAC · OGG · PTH file converter

Convert vocals

Put a voice you trained, or an RVC model you already have, on a vocal. Every conversion also comes with a cleaned-up version for natural consonants and breaths.

Change the voice in a song

Drop in a finished song and get it back sung in your voice, with the music left as it was.

Free audio tools

Stem separator

Split a song into the vocals and the instrumental.

Also: Vocal remover

Lead and backing splitter

Split the lead vocal from the harmonies, or take the lead out and keep the backing vocals.

Also: How it compares with other splitters

Noise remover

Take hiss, hum and room noise off a recording.

Reverb remover

Get a dry vocal back from a recording made in an echoey room.

Vocal mixer

Add echo, reverb, brightness and width to a vocal, right in your browser.

Trim

Cut silences and the parts you don’t want, right on the waveform.

Format converter

Change WAV, MP3, FLAC, M4A, OGG and more into the format you need.

For developers

API and MCP

Train and convert voices from a coding agent or your own code.

New here?

Start with a song in the stem separator, or train your own voice.

Train a voice