AI Lip Sync Generator
Create perfectly synchronized lip movements for any video in multiple languages with Kling 3.0's advanced AI lip sync technology. Whether you need to dub a marketing video into Japanese, localize an educational course into Spanish, or create multilingual social media content from a single recording, the Kling 3.0 lip sync generator delivers natural, realistic mouth movements that match your target audio with stunning precision. The AI analyzes facial geometry, jaw dynamics, tongue position, and phoneme timing to produce lip movements that are virtually indistinguishable from native speech. Supported languages include English, Chinese, Japanese, Korean, and Spanish, with additional languages being added regularly. Upload any portrait video and pair it with an audio file or text input to generate professionally dubbed content in minutes — no manual animation, no green screen, and no expensive voice actors required.
Multi-Language Lip Sync Features
Kling 3.0 delivers the most advanced AI lip sync technology available today, combining precise phoneme analysis with natural facial dynamics to create multilingual video content that looks authentically spoken in every supported language.
5 Languages Supported
Generate perfectly synchronized lip movements in English, Chinese, Japanese, Korean, and Spanish — the five most in-demand languages for global content localization. Each language model has been trained on thousands of hours of native speech data, capturing the unique mouth shapes, jaw movements, and articulation patterns specific to each language's phoneme set. Whether your target audience speaks Mandarin, Tokyo-standard Japanese, Latin American Spanish, or American English, Kling 3.0 produces lip movements that native speakers will recognize as natural and accurate. Additional language support is actively in development and will be rolled out in upcoming releases.
Natural Lip Movement
Kling 3.0's lip sync AI goes far beyond simple mouth-open and mouth-closed animation. The technology models the full complexity of human speech articulation — including lip rounding, teeth visibility, tongue placement, jaw extension, cheek compression, and the subtle micro-movements that occur between phonemes. The result is lip movement that flows naturally at conversational speed, with proper co-articulation effects where adjacent sounds influence each other's mouth shapes. Even at close-up angles and high resolutions, the synchronized lip movements appear genuinely spoken rather than artificially animated.
Any Face, Any Audio
Upload any portrait video featuring a visible face — front-facing, three-quarter angle, or even slight profile views — and pair it with your target audio file or text-to-speech input. The AI handles the synchronization regardless of the original speaker's language, age, gender, or ethnicity. Replace audio in interview footage, sync a voiceover artist's performance to a different speaker's face, or create multilingual versions of a single talking-head recording. Supported audio formats include MP3, WAV, and AAC, and the AI automatically adjusts for variations in speaking speed, emphasis, and natural pauses in the source audio.
Content Localization
Transform your video content strategy with AI-powered localization that eliminates the need for re-filming in each target language. A single English-language recording can be seamlessly dubbed into Chinese, Japanese, Korean, or Spanish with matching lip movements that make the speaker appear to be fluently delivering the content in each language. This is invaluable for corporate training videos, product demonstrations, online course content, YouTube channels expanding to international audiences, and marketing campaigns targeting multiple regions. Reduce localization costs by up to 90% compared to traditional dubbing workflows while maintaining professional quality.
How AI Lip Sync Works
Kling 3.0 makes multilingual lip sync simple and accessible. Follow these three steps to create professionally dubbed video content with perfectly synchronized lip movements — no technical expertise or animation skills required.
Upload Your Video
Upload a video featuring a clearly visible face — any angle from front-facing to three-quarter profile. The AI performs advanced facial landmark detection to map the speaker's mouth region, jaw structure, and surrounding facial muscles. For optimal results, use well-lit footage where the face is unobstructed by hands, microphones, or heavy shadows. Supported formats include MP4, MOV, and WebM with a maximum file size of 500MB.
Add Audio or Text
Upload the target audio file (MP3, WAV, or AAC) that you want the speaker's lips to match, or type the text you want spoken and select a language for AI text-to-speech generation. Choose from English, Chinese, Japanese, Korean, or Spanish. The AI analyzes every phoneme in the audio, mapping precise timing and articulation data that will drive the lip synchronization process. You can preview the audio before generating to confirm it matches your requirements.
Download Synced Video
Kling 3.0 generates precise, natural lip movements frame by frame, perfectly synchronized to your target audio. The process typically completes in 2 to 5 minutes depending on video length. Preview the synced result directly in your browser, then download the finished video in HD quality. The output retains the original video's resolution, color grading, and all visual elements outside the lip region — only the mouth area is intelligently modified to match the new audio.
Ready to Try AI Lip Sync?
Create realistic lip-synced videos in English, Chinese, Japanese, Korean, and Spanish with Kling 3.0's advanced AI dubbing technology. Start with free credits and produce professionally localized video content in minutes — no animation skills, voice actors, or expensive studio sessions required.