Character Tools
AI Lip Sync — Make Your Consistent Characters Talk
Our AI lip sync tool turns a portrait photo and audio into a talking avatar with precise mouth sync and natural expressions — try free.
Create talking avatars from photos with precise lip-sync to audio
Upload an image and audio to generate a talking avatar
AI Lip Sync Features
Precise Lip Synchronization
Advanced AI technology analyzes your audio and generates perfectly synchronized lip movements that match every syllable and sound.
Natural Facial Expressions
Control emotions through prompts - from warm smiles to serious expressions. The AI adds natural facial movements and micro-expressions.
Identity Preservation
Maintain consistent character identity throughout the video. Facial features, skin tone, and distinctive characteristics remain stable.
Perfect for Various Applications
Educational content with engaging AI presenters and virtual instructors
Marketing videos with personalized spokesperson content at scale
Social media content with unique talking avatar posts and stories
Multilingual content by syncing the same avatar to different audio tracks
How to Create Your Talking Avatar
Upload Portrait Photo
Upload a clear, front-facing portrait photo. Works best with high-quality images where the face is clearly visible.
Provide Audio URL
Enter the URL of your audio file. Supports MP3, WAV, AAC, and OGG formats up to 15 seconds in length.
Generate & Download
Optionally add expression prompts to control emotions. Generate your talking avatar video and download the result.
Why Our AI Lip Sync Wins
Powered by Kling AI Avatar technology — a state-of-the-art AI lip sync engine with natural head movements
Create professional talking head videos without expensive equipment, studios, or actors
Generate multiple variations quickly — perfect for A/B testing marketing messages or creating multilingual content
AI Lip Sync — FAQ
What types of photos work best with the AI lip sync tool?
Front-facing portrait photos with clear, visible faces work best. Ensure good lighting, a neutral background, and that the mouth area is clearly visible. Avoid photos with obstructions, extreme angles, or low resolution.
What audio formats and lengths are supported?
We support MP3, WAV, AAC, and OGG audio formats. Audio files should be under 10MB and up to 15 seconds in length. For best results, use clear speech without heavy background music.
How do expression prompts work?
Expression prompts let you control the avatar's emotions and facial expressions. Describe the mood like 'smiling warmly', 'speaking seriously', or 'excited and enthusiastic' to influence how the avatar appears while speaking.
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