Turn voice into anything you can imagine.
Applio is a complete, open-source voice conversion suite. Create AI covers, train custom voice models, and convert voices in real time — on your machine or in the cloud.
Runs on Windows · macOS · Linux · Colab · Kaggle
The voice you provide — for example a clip of Acat's voice.
The result: Applio’s output voice. This preview is silent — try it in the playground to hear it.
Features
Everything you need for voice conversion
From a single cover to a fully custom voice, Applio ships with a complete set of tools for voice work.
Voice Conversion
Convert any audio into another voice with ready-made voice models. Tune pitch, clean, upscale, and batch-process files effortlessly.
Real-Time Voice
Change your voice live with low-latency inference, perfect for songs, streams, and calls.
Model Training
Train your own voice from your dataset. Pre-process, extract, train and export a model in just a few steps.
Voice Blender
Blend multiple voice models into one unique new voice with full control over each contributor.
Text-to-Speech
Generate speech from text and run it through your voice models, opening up a whole world of content.
Audio Analyzer
Prepare your datasets and check their readiness with detailed audio health information before training.
Get started
From zero to your first conversion
Install Applio
Run the install script for Windows, Linux or Mac. No prerequisites — everything is bundled.
Installation guidePick or train a voice
Use a ready-made voice model, or train your own with audio you provide. Pre-trained models are available as a base for training.
Find voice modelsConvert your audio
Upload a song, speech, or your microphone and let Applio handle the rest.
Inference guideRun it anywhere
On your machine or in the cloud
Local
Runs natively on Windows, Linux and macOS. For the best training experience we recommend an Nvidia RTX 20-series GPU or newer — a modern computer is plenty for inference.
Cloud
No powerful hardware? Run Applio with free GPU time on Google Colab or Kaggle, or test it immediately in the browser playground.
Open source
Built in the open, free for everyone
Applio is a community-driven project with everything public: source code, roadmap, issues, and releases. No accounts, no paywalls, no telemetry — just code you can read, modify, and trust.
MIT licensed
Use, modify, and redistribute Applio freely — for personal projects, research, or commercial work. Free forever, by design.
Community driven
Maintained by contributors around the world. Report bugs, request features, or contribute code — every change is public and reviewed.
Transparent by default
No data collection and no accounts required. Everything runs locally, and the full development history is open for anyone to audit.
News
Latest from the blog
Introducing Our New Website
We've rebuilt Applio's website from the ground up using Astro, focusing on performance, simplicity, and user experience.
Read moreChanges to Model Access
An important announcement regarding changes to model access in Applio to ensure responsible usage and community safety.
Read moreStart creating voices today
Free, open source, and built for everyone — from complete beginners to seasoned pros.