Video Repair Tools
Fix common recording problems without uploading your video. Start with sync, playback, WebM, frame-rate, orientation, shake reduction, or black-bar repairs, then trim, compress, or convert the result.
Audio sync
Move audio by milliseconds.
Web playback
Optimize MP4 faststart metadata.
Editor fit
Convert VFR recordings to CFR.
WebM
Generate timestamps and export MP4.
Orientation
Rotate or flip mirrored clips.
Shake
Reduce mild camera movement.
Framing
Crop black bars from edges.
Fix Audio Delay
Shift audio earlier or later when speech does not line up with the picture.
Use this when a recording has visible lip-sync or narration timing drift.
Fix MP4 Faststart
Move MP4 playback metadata to the front of the file for better web playback.
Use this when an MP4 waits to fully download before playback starts.
Convert VFR to CFR
Create a constant frame rate MP4 for editors and sync-sensitive workflows.
Use this when a screen recording behaves oddly in editing software.
Fix WebM Recording
Generate timestamps and export a browser WebM recording as MP4.
Use this when a WebM screen recording will not play, upload, or edit cleanly.
Change Video FPS
Export a constant-frame-rate MP4 at 24, 25, 30, 50, or 60 FPS.
Use this when a destination or editor expects a specific frame rate.
Rotate Video
Fix sideways or upside-down clips with a corrected MP4 export.
Use this when a phone, webcam, or imported recording has the wrong orientation.
Flip Video
Fix mirrored clips with horizontal or vertical flipping.
Use this when a webcam or capture appears mirrored after recording.
Stabilize Video
Reduce mild camera shake with a practical browser deshake filter.
Use this when a handheld clip has small shake, not large camera jumps.
Remove Black Bars
Crop letterbox or pillarbox bars with manual edge controls.
Use this when a video has unused black space around the actual content.
After repair
Once the file is fixed, these tools help prepare it for publishing, sharing, or editing.