Merge Video

Combining video clips creates a single cohesive file from multiple sources. Common uses include assembling event footage from different cameras, creating compilation videos, joining chapters of recorded presentations, and combining short clips into a shareable highlight reel.

Merging eliminates the need to share multiple files or play clips in sequence manually. Recipients get one clean video file they can watch straight through.

Each source clip brings its own audio track. FormatWiz preserves audio from all clips during the merge, playing each track in sequence as the corresponding video plays. Volume levels remain as recorded in the original files.

For clips with silent sections, background noise differences between clips may be noticeable at transitions. Consider adding background music afterward if audio consistency matters for your project.

Mixing clips with different resolutions or aspect ratios can cause visual inconsistencies. FormatWiz handles this by standardizing to a common format, but best results come from clips that already match in resolution.

Portrait and landscape clips in the same merge may show letterboxing (black bars) to maintain aspect ratios. For the cleanest results, shoot or crop all clips to matching dimensions before merging.

All video processing happens locally in your browser. FormatWiz uses WebAssembly-powered codecs to combine clips without uploading anything to external servers. This makes it safe for personal videos, confidential recordings, or any content you prefer to keep private.

Large files work fine since processing uses your device's resources. Close the browser tab when finished and no trace remains.