RVC (Retrieval-based Voice Conversion)
Leading#4 in Open sourcehigh confidence
The de-facto open voice-conversion tool (~36.6k GitHub★) — best balance of quality, speed and ease for real-time voice changing/cloning.Our read
Why it ranks #4
The de-facto open voice-conversion WebUI at roughly 37k GitHub stars, with the largest hobbyist model-sharing ecosystem and frequent community recommendations for real-time singing and speech conversion.Here is the catch
not text-to-speech; it requires a source performance
CUDA, audio-driver and model setup can be fragile
community voice models can create serious consent and copyright risks
Does this well
strong quality and speed for voice-to-voice conversion
large community model ecosystem
accessible WebUI for training and inference
Pricing
Checked by hand on 2026-07-23. Prices in this category change often — if this looks wrong, it probably is.
Key features
retrieval-based voice conversionreal-time microphone conversionmodel training from custom audioWebUI and batch processing
Quick facts
More in this area
The rest of the Open source column.- 1Coqui TTS (XTTS)The gold-standard open-source TTS / voice-cloning toolkit (~45.8k GitHub★) — XTTS v2 clones a voice from a 3-second clip across many languages.
- 2Bark (Suno)Suno's transformer TTS (~39.2k GitHub★) — highly expressive speech plus non-speech sounds (laughter, sighs, music). A recognized open leader.
- 3OpenVoice (MyShell)MyShell's instant voice cloning (~37k GitHub★) — strong tone/emotion control and low-latency inference. Widely adopted open cloner.
- 5Fish Speech (fishaudio)Fast, high-quality multilingual TTS / cloning (~31.4k GitHub★) — a newer entry gaining strong traction for its speed-quality balance.
- 6Chatterbox (Resemble AI)Resemble AI's open TTS (~25.7k GitHub★) — a top 2026 pick for expressive, production-grade local speech with emotion control.
- 7F5-TTSA fast diffusion-transformer TTS with strong zero-shot cloning (~15k GitHub★) — notable and actively used, below the top repos on adoption.