sync.

Precisely lip-sync and dub videos across multiple languages.

Paidsync.soJun 5, 2026

Lipsync-2 Model

Adapts instantly to any speaker’s unique speaking style, generating authentic lip movements from audio alone—no pre-training or speaker enrollment needed.

Video Editing Flexibility

Works with live-action clips, animated characters, and AI-generated avatars, all supported at resolutions up to 4K.

Voice Cloning

Supply custom audio by uploading a file, generating speech from text, or recording your own voice right within the tool.

Multilingual Dubbing

Dub content into any language with automatically synchronized lip movements, enabling broad global reach.

High-Resolution Output

Edit and export videos at up to 4K resolution, ensuring professional-grade quality.

Concurrent Job Processing

Paid plans allow multiple editing jobs to run simultaneously, improving workflow efficiency.

What is sync?

sync is an AI-powered video editing tool that specializes in seamless lip synchronization. Using its advanced Lipsync-2 model, sync can automatically match a speaker’s mouth movements to any audio track—without requiring prior training on the individual. The result is natural-looking video dubbing, perfect for content creators, marketers, and professionals who need to edit dialogue in videos while preserving emotional impact and visual quality.

Core Features

Lipsync-2 Model: Adapts instantly to any speaker’s unique speaking style, generating authentic lip movements from audio alone—no pre-training or speaker enrollment needed.
Video Editing Flexibility: Works with live-action clips, animated characters, and AI-generated avatars, all supported at resolutions up to 4K.
Voice Cloning: Supply custom audio by uploading a file, generating speech from text, or recording your own voice right within the tool.
Multilingual Dubbing: Dub content into any language with automatically synchronized lip movements, enabling broad global reach.
High-Resolution Output: Edit and export videos at up to 4K resolution, ensuring professional-grade quality.
Concurrent Job Processing: Paid plans allow multiple editing jobs to run simultaneously, improving workflow efficiency.
API Access: Integrate sync’s lip sync capabilities directly into your own applications or automated pipelines.

Use Cases & Considerations

Use Cases

Content Creators: Enhance YouTube videos, social media shorts, or reels with flawless lip sync when inserting voiceovers or translated dialogue.
Marketing Agencies: Produce localized ad campaigns by dubbing promotional videos into different languages while keeping the speaker’s natural expressions intact.
Film and Animation Studios: Edit or replace dialogue in film scenes and animated features post-production, saving time on reshoots or manual frame animation.
Podcasters and Video Journalists: Overdub audio for visual segments, interviews, or commentary videos to correct mistakes or adapt content for international audiences.
Language Educators: Create multilingual teaching materials where an instructor’s lip movements match the language being spoken, improving student comprehension.
Game Developers: Sync character dialogue in cutscenes or in-game interactions, supporting localization across many languages with minimal effort.

Limitations & Considerations

Initial Learning Curve: While automated, mastering the full range of editing controls and API may take a little time for new users.
Per-Minute Costs Add Up: Heavy users processing long videos or many iterations need to budget for usage fees on top of subscription.
Limited Third-Party Integrations: Aside from API access, direct integrations with popular video editing software or cloud storage are not extensively listed.
Not Real-Time: Processing a video and generating the lip sync can take time; it is not a live-streaming solution.
Input Quality Dependent: Performance may degrade with extreme head rotations, occlusions, or poor lighting—clear frontal face footage gives best results.
Resolution Cap: While 4K is supported, there’s no mention of higher resolutions (8K) at this time.

How to use sync

Upload Your Video: Start by uploading the video clip you want to edit. Supported formats typically include common types like MP4 or MOV (check official documentation for the full list).
Provide the Audio: Choose your audio source—upload a pre-recorded audio file, use the built-in text-to-speech engine to generate speech, or record your voice directly.
Let the Lipsync-2 Model Work: The AI automatically analyzes the speaker’s facial movements and generates new lip sync that matches the provided audio, with no manual keyframing required.
Preview and Fine-Tune: Play back the result inside the Lipsync Studio. Adjust timing or make minor tweaks if necessary to perfect the alignment.
Select Resolution and Export: Once satisfied, choose your desired output quality (up to 4K) and export the final video. Paid plans allow multiple jobs to render in parallel.

Pricing & Plans

sync offers a subscription model with a base monthly fee plus a usage charge per minute of processed video. All plans include Lipsync Studio, API access, and community support, and scale in terms of video length, concurrent jobs, team seats, and discounts. Note that pricing may have changed; always check the official sync website for the most up-to-date details.

Plan	Monthly Fee	Per-Minute Rate	Video Length	Concurrent Jobs	Team Seats
Hobbyist	$5	$3.00	Up to 1 minute	1	1
Creator	$19	$3.00	Up to 5 minutes	3	1 (personal TTS key)
Growth	$49	$2.85	Up to 10 minutes	6	3 (extra seats $25/mo)
Scale	$249	$2.40	Up to 30 minutes	15	5 + dedicated support

Platforms

Web Application (Lipsync Studio): Access sync’s full editing interface directly in your browser—upload, edit, and export videos without any software installation.
API: Programmatically submit videos and audio for lip syncing, enabling integration with custom workflows, CMS, or bulk-processing pipelines.
No Mobile App: Currently, sync focuses on desktop-class browsers and API access; a dedicated mobile application is not advertised.

Tips & Best Practices

Ensure High-Quality Source Audio: Clear, intelligible speech yields the best lip sync results; avoid background noise or heavy compression.
Start with Short Test Clips: When trying a new language or voice, test on a 15–30 second segment to verify accuracy before processing a full video.
Use Native Text-to-Speech for Dubbing: For multilingual projects, sync’s text-to-speech integration often produces cleaner timing than importing an external audio file.
Take Advantage of Concurrent Jobs: On paid tiers, process multiple clips simultaneously to speed up batch projects.
Monitor Your Per-Minute Usage: Since usage costs accrue per minute of processed video, plan projects to avoid unexpected overages.
Keep Original Lighting and Camera Angle: The Lipsync-2 model works best when the speaker’s face is clearly visible and well-lit.

Who is sync for?

Social media content creators who regularly add voiceovers or translate their videos for a global audience.
Marketing teams that need to produce multilingual video ads quickly without re-filming talent.
Film and TV post-production studios looking for a fast, preview-based dialog replacement tool.
Indie filmmakers and animators who need believable lip sync on a limited budget.
Online educators creating localized lecture recordings or interactive video lessons.
Game developers integrating dynamic character dialogue that crosses language barriers.

Alternatives

View all

HeyGen

AI video generation platform with talking avatars and built-in multilingual dubbing, suitable for personalized marketing messages.

D-ID

Specializes in animating still portrait photos with synced speech, often used for conversational AI interfaces.

Resemble.ai

Emphasizes voice cloning and AI dubbing, with a focus on real-time speech-to-speech voice conversion.

Wav2Lip

An open-source deep learning model for lip syncing video to any target audio, requiring technical setup but free to use.

Murf AI

Primarily a text-to-speech engine, but includes basic video voiceover syncing capabilities, useful for quick narrations.

Runway

A multi-purpose creative AI suite with some video dubbing and lip sync features, aimed at artists and filmmakers.

FAQ

Q1. What is the Lipsync-2 model, and why does it not require pre-training?

The Lipsync-2 model is a deep learning system designed to generalize across any human speaker. It analyzes facial and speech features on the fly, eliminating the need for a dedicated training session for each new voice. This allows you to lip sync a video immediately, even if the speaker has never been processed before.

Q2. Can I dub a single video into multiple languages simultaneously?

Yes. You can generate audio for each target language (via upload or text-to-speech) and then process the same source video with different audio tracks, producing a separate lip-synced version for each language. Just note that each minute of processed video counts toward your usage.

Q3. Does sync offer a free trial?

The provided pricing information lists only paid tiers, starting with a low-cost Hobbyist plan. The site may occasionally offer trial credits or a demo; check the official sync website for any current free options.

Q4. What types of videos can I process—does it work with cartoons?

sync supports live-action, animated characters, and AI-generated avatars. As long as the character has a face with a distinguishable mouth region, the tool can generate convincing lip movements for cartoons and 3D models.

Q5. Is my uploaded content kept private and secure?

sync mentions data privacy and security, though details are not fully specified here. Typically, such platforms encrypt uploads and delete processed files after a set period, but you should review sync’s privacy policy and terms of service for exact data handling practices.