Achieve Flawless Audio-to-Video Synchronization
Want your videos to have smooth, realistic lip-syncing synchronization without spending hours editing? With HeyGen’s AI Lip Sync, your avatars or real subjects will speak fluently and naturally in multiple languages. Our advanced AI technology ensures lip movements match speech perfectly, enabling you to create ultra-realistic talking avatars or dub over real footage with precise synchronization. Whether you’re a content creator, educator, marketer, or filmmaker, these tools help you achieve impeccable, automated voice synchronization in your videos.

Best Practices for AI Lip Syncing
Explore the best methods to attain realistic and smooth audio-to-video synchronization for your AI video generator projects.

Engage Your Audience with Realistic AI Lip Sync
AI-powered lip sync is not just ideal for dubbing content and enhancing animated avatars, but it’s also crucial for creating videos where authenticity and precision are essential. Instead of relying on manual adjustments, HeyGen automates the process, utilizing audio deepfake technologies to provide highly accurate and natural-looking results in seconds. This feature guarantees that every word aligns perfectly with mouth movements, whether you’re working with custom avatars, real people, or AI-generated videos. With Zapier integration, you can automate the lip-syncing process across projects, enhancing content creation and efficiency effortlessly.

Create Perfectly Synced Videos in 4 Easy Steps
Bring your videos to life with our AI's accurate, multilingual lip-sync capability.
Start with a clear audio file or compose your script—HeyGen supports voice and text-to-speech for various AI video maker needs.
Choose a talking AI avatar or sync lips over real human footage for a lifelike delivery in your generative AI video.
Select from over 300 voices in 175+ languages to match your target audience's tone, showcasing the powerful automation in video content creation.
HeyGen automatically syncs lips, voice, and expressions—export and share within seconds using this best AI video generator.
HeyGen provides over 700 customizable templates suitable for various purposes, including social media content, product explainers, educational videos, and marketing campaigns. These templates are designed to help users create professional videos quickly and efficiently.
Yes, HeyGen's templates are fully customizable. You can modify text, images, colors, and incorporate your brand elements to ensure consistency across your video content.
Absolutely. HeyGen allows you to integrate AI-generated avatars into your videos, enabling you to create engaging content with virtual presenters that can speak multiple languages.
No. The platform is beginner-friendly and drag-and-drop based, designed for anyone to use—no prior video editing experience required.
You can export your final video in high-definition (HD or 4K depending on your plan) and download it in MP4 format.
Bring any photo to life with hyper‑realistic voice and movement using Avatar IV.