Lip sync, also called lip synchronization, matches a person or character’s mouth movements to spoken or sung audio. AI tools automate much of the frame-by-frame work, making it easier to replace dialogue, dub videos, animate characters, or create singing performances.

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Q: Is Kling AI Lip Sync free?

Kling AI Lip Sync is a paid feature. Credit use depends on the length of the video, and the required amount is shown before generation.

Q: Can I create a lip sync video from audio online?

Yes. Open the Kling AI Lip Sync tool, choose a supported character video, then upload your audio or generate speech from text. Kling AI processes the lip synchronization online.

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How to Upscale Video to 4K with Kling AI

Upload Your Video

Upload the video you want to improve to Kling VIDEO 3.0 Omni. You can work with clips between 3 and 10 seconds, including lower-resolution, blurry, compressed, or AI-generated footage.

Describe the Result You Want

Enter a prompt for any changes you want alongside the upscale. You can ask for clearer detail or adjust lighting, color, atmosphere, background, and other visual elements while keeping the original footage as your starting point.

Generate Your 4K Video

Select 4K as the output resolution and generate your new video. Review the result for clarity, detail, and subject appearance, then refine your prompt or references if you want another version.

Natural Face Swaps Without the Editing Hassle

Image Face Swap Without the Busywork

From portrait-style shots to playful creative images, Kling IMAGE 3.0 helps you create more natural and consistent face swaps. Add the photo you want to edit, provide a face reference, and tell Kling AI what you want to change. The edit can stay close to the original photo, helping the new face feel like part of the image rather than something added on top.

Keep the Same Face Across Angles and Shots

A single reference does not always show everything. Add multiple views or use a character element to give Kling AI more information about the person you want to preserve. Kling VIDEO 3.0 Omni uses those references to help maintain key identity features as the subject changes pose, the camera moves, or the scene shifts—especially useful for moving footage and multi-shot videos where consistency matters.

Change the Face, Keep the Scene

Swap the face, not the whole scene. Kling AI keeps the original lighting, mood, and overall look in place, helping the new face blend naturally into the shot while the setting and visual feel stay true to the original.

Apps

Image to Video

Text to Video

Omni

Digital Human

Restyle

Text to Image

60M+

Users

600M+

AI Videos Generated

4.7 ★

App Store

Industry-Leading

Cinematic 4K

Reviews

James Phillips

★★★★★

Kling AI has transformed my workflow by collapsing timelines and democratizing production. It’s shifted my mindset from resource-dependent filmmaking to a boundless creative sandbox, where experimentation yields unexpected beauty.

KakuDrop

★★★★★

I have successfully collaborated with world-renowned artists and well-known companies that are recognized globally

Halim Alrasihi

★★★★★

I use AI daily and Kling AI is a crucial part of my workflow, whether for client work or personal projects. What I love most about using Kling AI is that it provides all the tools I need in one place, from keyframes to character references, elements and special effects.

FAQ

Q1What is lip sync?

Q2Is Kling AI Lip Sync free?

Q3Can I create a lip sync video from audio online?

Put Your Character in Front of the Screen

Start with an image, add the voice, and shape the performance. Kling AI Avatar brings the pieces together for your next campaign, lesson, social post, or story.

Custom AI avatars | Voice or text input | Lip sync | Expression and gesture control

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Recommended

How to Upscale Video to 4K with Kling AI

Upload Your Video

Describe the Result You Want

Generate Your 4K Video

Natural Face Swaps Without the Editing Hassle

Image Face Swap Without the Busywork

Keep the Same Face Across Angles and Shots

Change the Face, Keep the Scene

Apps

Image to Video

Text to Video

Omni

Digital Human

Restyle

Text to Image

Reviews

James Phillips

KakuDrop

Halim Alrasihi

FAQ

Put Your Character in Front of the Screen