Alternative toHeyGen
SadTalker
Single image + audio → talking head video.
Access: Free or open-source project
Setup: self-host
Free alternatives to HeyGen
Functional replacements with a real free or open-source path, described in plain terms.
Available alternatives
duixcom/Duix-Avatar
Open-source talking avatar generator.
Access: Free or open-source project
Setup: self-host
MuseTalk
Open-source audio-driven talking-face and lip-sync model for animating a portrait. It covers the avatar-animation feature, not a complete hosted video-creation platform.
Setup: terminal
LiveTalking
Open-source real-time digital-human streaming system with audio/video synchronization, voice options, and avatar models. It requires technical setup and is not a hosted creator SaaS.
Setup: terminal