Lip Sync on GitHub

Lip Sync is a powerful Blender add-on that brings automated lip-sync animation to your characters.

In just a few clicks, analyze an audio clip and generate phoneme-based keyframes for your character's mouth movements.

No manual keyframing needed — Lip Sync does the heavy lifting for you.

• Automatic phoneme extraction from voice audio
• Supports 25+ languages including English, French, German, Spanish, Russian, Hindi, Mandarin, and more
• 2D spritesheet mouth shape animation
• Upcoming support for 3D shape key animation
• Cached models for fast re-analysis and offline use
• Easy integration with Blender’s NLA and Dope Sheet editors

Lip Sync uses a robust pipeline of open-source speech and phoneme processing tools to ensure both accuracy and performance:

• Vosk: Offline speech recognition engine that transcribes audio into text and phonemes. Includes precompiled builds for Windows, macOS, and Linux.
• eSpeak NG: Lightweight synthesizer that converts transcribed text into a phoneme sequence. A custom build is bundled for all platforms.
• Phonemizer: Linguistically accurate phoneme segmentation, ensuring correct mouth shapes across multiple languages.

On first use, Lip Sync downloads the required Vosk acoustic model for the selected language. These models are then cached locally so you only download what you need once.

• ✅ No repeated downloads
• ✅ Faster future analysis
• ✅ Fully offline after setup

• Blender 4.4+
• Compatible with Windows, macOS, and Linux
• Internet required only for initial model download

• 2D animated shorts and web series
• 3D character animations and dialogue
• Game cutscenes and voiceover-driven scenes
• Storyboarding, animatics, and prototyping

Whether you're an indie animator or part of a studio team, Lip Sync makes it easy to give voice to your characters — quickly and effortlessly.

Try it today and let your characters speak!

• Lip Sync on GitHub
• Lip Sync on Blender Extensions (In Queue)