Applio is an open-source voice conversion suite for making covers, creating custom voice models, and changing voices live. It can process recorded audio with ready-made models and provides pitch tuning, audio cleanup, upscaling, and batch processing. Live conversion uses low-latency inference for songs, streams, and calls. For model work, Applio includes training tools, a voice blender, text-to-speech, and an analyzer for checking dataset readiness. It runs on Linux, macOS, Windows, the web, or as a self-hosted setup. Google Colab, Pinokio, and Hugging Face are also linked as ways to run it. Applio is free, with a listed price of 0.00 USD per free, and uses the MIT license, which permits personal, research, and commercial projects. The security page says audio and models stay on the device unless shared, and core features need no account, telemetry, or cloud service. Documentation recommends an Nvidia RTX 20-series GPU or newer for local training; most modern computers can handle inference with existing models.
Who it is for
Applio suits beginners through experienced users who want to convert audio, train voice models, or use real-time voice conversion. Its local training guidance is relevant to users with an Nvidia RTX 20-series GPU or newer.
What is good
- Free, open-source MIT-licensed software.
- Converts recorded audio and supports live voice conversion.
- Includes model training, blending, and text-to-speech tools.
- Audio and models stay on-device unless shared.
- Available across Linux, macOS, Windows, web, and self-hosted setups.
What to know first
- Local training guidance recommends an Nvidia RTX 20-series GPU or newer.
- Downloaded models come from external sources and should be verified.
Verdict
Applio combines recorded and live voice conversion with model creation tools at no charge. Its local-training guidance and caution about external models are worth noting before getting started.
Applio plans and pricing
All plansCompared on AI song cover generators
- Free plan
- Yes
