Applio

Applio is an open-source voice conversion suite that generates AI covers, trains custom models, and converts audio.

Applio is a free, open-source AI voice conversion suite designed for creators, researchers, and audio engineers. Users can create AI covers, train custom voice models from datasets, and convert voices in real time. The software includes tools for pitch tuning, audio cleaning, upscaling, and batch processing. It also features a voice blender to combine multiple models, text-to-speech generation, and an audio analyzer to check dataset readiness. The application runs on Windows, Linux, macOS, and in the cloud, offering both a standalone desktop app and a Gradio web interface.

Applio at a glance

Best for: Social media creator
Runs on: Windows, Linux, macOS, Web, self-hosted, open source
Pricing: Free
Released: August 2023
Category: AI audio tool
Website: applio.org

Key features

Voice conversion with ready-made models
Real-time voice changing with low-latency inference
Custom voice model training from datasets
Voice blending for unique model creation
Text-to-speech generation
Audio analysis for dataset health checks
Pitch tuning and audio upscaling

Use it for

Create AI song covers
Change voice live during streams and calls
Train custom voice models from audio datasets
Blend multiple voice models into a new voice

Alternatives to Applio

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Fish Audio — Provides studio-grade voice cloning and text-to-speech with emotion control.
Udio — Generate customized songs across multiple genres from simple text prompts.
Voicebox — Perform voice cloning and generation entirely on local hardware.
AuK — It handles zero-shot TTS, editing, and enhancement via natural language.
Cartesia — It delivers the fastest, most accurate streaming speech models and agents.
GPT-SoVITS — It allows high-fidelity voice cloning with as little as one minute of data.
Kits — Ethically licensed voice models and royalty-free music production tools.
DiffSinger — It uses a shallow diffusion mechanism for singing voice synthesis and text-to-speech.
VoiceStudio — Runs locally on your machine with no account, cloud connection, or API keys required.

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