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KeySync

No phone app

6.4No. 9 of 25
in AI Video Lip Sync Tools
  • Recognised40% of the score60
  • Phone app26% of the score0
  • Documented20% of the score70
  • Free plan14% of the score30
Free plan
No
Runs on
Web
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Summary

KeySync is ranked #9 of 25 in AI video lip sync tools on Samsung Mobile US Press. It runs on Web.

Facts

Purpose
KeySync aligns lip movements in an existing video with new input audio.antonibigata.github.io · 4 Oct 2026
Framework
KeySync uses a two-stage framework to improve temporal consistency in lip synchronization.antonibigata.github.io · 4 Oct 2026
Expression leakage
Its masking strategy is designed to reduce expression leakage from the input video.antonibigata.github.io · 4 Oct 2026
Occlusions
The framework includes a masking approach for handling facial occlusions.antonibigata.github.io · 4 Oct 2026
Evaluation
The project reports results for lip reconstruction and cross-synchronization and introduces the LipLeak metric for expression leakage.antonibigata.github.io · 4 Oct 2026
Interactive demo
The demo accepts video and audio uploads to create synchronized videos and is limited to videos up to 6 seconds by Hugging Face Spaces GPU restrictions.github.com · 4 Oct 2026
Local requirements
The repository lists a CUDA-compatible GPU, Python 3.11, and Conda as prerequisites for installation.github.com · 4 Oct 2026
Input formats
The quick start guide uses MP4 video files and WAV audio files as inputs.github.com · 4 Oct 2026
Preprocessing
Provided scripts can convert videos to 25 fps and audio to 16000 Hz, and crop videos around the face.github.com · 4 Oct 2026
Occlusion controls
The command-line options include a setting to enable occlusion handling and coordinates for the object to mask.github.com · 4 Oct 2026
Model weights
The repository instructs users to download pretrained models from the toninio19/keysync Hugging Face repository.github.com · 4 Oct 2026
License
The GitHub repository identifies its license as Apache-2.0.github.com · 4 Oct 2026

Best KeySync alternatives

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LipDub No. 1 8.2 No phone app$29/moSync Labs No. 2 8.1 No phone app$5/moCHAMELAION LipSync API No. 3 8.1 No phone app€0.33/molipsyn.cc No. 4 8.0 No phone appFreeLipsync.video No. 5 7.3 No phone app$7.99/moWeryAI Video Lip Sync No. 6 7.2 iPhone + Android$0.99/mo

Where it ranks on Samsung Mobile US Press

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Sources