Professional Video Tool
Sync Audio & Video
Fix lip sync delay or out-of-time soundtracks by shifting the audio timing relative to video.
Or drag & drop video file here
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Supports MP4, MOV, WEBM, AVI, MKV up to 500MB
Fix Out-of-Sync Audio
Shift audio forward or backward by milliseconds to fix lip sync.
Fine Millisecond Tuning
Adjust audio offset precisely (+/- seconds or milliseconds).
Live Sync Check
Verify spoken dialogue and mouth movements in preview.
Lossless Audio Delay
Applies itsoffset or adelay without video re-compression.
Privacy Guaranteed
Temporary media files deleted automatically after download.
Universal Video Export
Export in MP4, MOV, WEBM, or MKV containers.
Instant Export
Download your perfectly synchronized video immediately.
No Watermarks
100% free with no branding or quality loss.
How to Use
- Upload or drag and drop your media file.
- Configure the tool settings and options in the studio panel.
- Preview changes in real time and click process.
- Download your processed output file directly to your device.
What Our System Provides
- High-performance stream encoding powered by FFmpeg.
- Complete privacy with automatic temporary file cleanup after processing.
- Universal cross-platform format compatibility (MP4, MOV, WEBM, MKV).
- Clean output files with zero added watermarks or promotional branding.