Fix audio out of sync issues instantly. Upload your video and separate audio recording - get perfectly synchronized video with AI-powered waveform matching.
Perfect for: Phone microphone + camera, lavalier mic sync, external recorder sync, podcast video alignment
Click to upload video file
Click to upload audio file
Our advanced AI analyzes audio waveforms from both your video and separate audio file to find the perfect sync point automatically.
Upload your video file and separate audio recording. Works with any format - phone recordings, lavalier mics, external recorders.
Advanced Whisper AI analyzes both audio tracks, finds matching patterns, and calculates the perfect sync offset automatically.
Get your perfectly synchronized video with the original video track replaced by your high-quality external audio.
Record with your phone microphone while filming with a camera. Sync the better audio quality with your video.
Sync external lavalier microphone recordings with your camera footage for professional quality audio.
Align high-quality podcast audio with video recordings for YouTube or social media content.
Professional dual system setup with separate audio recorder and camera - sync automatically.
"Finally! No more spending hours trying to manually sync my lavalier mic with camera audio. This tool does it perfectly in minutes."
"I record with my phone mic while my camera records separately. This tool syncs them flawlessly every time."
"My dual system recording workflow is now effortless. Upload both files, download perfectly synced video. Game changer!"
We support all common formats including MP4, MOV, AVI for video and MP3, WAV, M4A for audio. Maximum video file size is 500MB.
Our AI-powered waveform analysis is frame-accurate in most cases. It works best when both audio sources contain some overlapping content for analysis.
Yes! Our audio sync tool is completely free to use. No account required, no credit card needed. Just upload and sync.
Your files are processed securely and automatically deleted from our servers after 24 hours. We never store or share your content.
Stop wasting time manually syncing audio. Upload your files and get perfectly synchronized video in minutes.
Start Syncing for Free✓ Free forever ✓ No signup required ✓ Files deleted after 24 hours ✓ AI-powered accuracy