Video Joiner

Free online video joiner to merge and combine multiple videos into one. Drag and drop to reorder. Supports MP4, WebM, MOV. Fast and easy video merging.

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About Video Joiner

Joining videos sounds trivial until you try it: drag two MP4s into iMovie, get a half-hour render. Use a 'free' online tool, hit a 100MB cap or a watermark. Open ffmpeg in terminal, fight with concat filters and codec mismatches. This tool solves all three: drag-and-drop multiple MP4/WebM/MOV files (up to 200MB combined), reorder by dragging, then merge — ffmpeg.wasm runs in your browser and stitches the clips into a single seamless video. Re-encoding ensures format/resolution compatibility between clips even if they came from different cameras/phones. Output is MP4 (universal), WebM (web-native), or matches your first clip. Common uses: combining phone clips into a single travel vlog, stitching screen recordings of a tutorial, assembling reaction segments, merging dashcam footage by trip. See also our Compress Video and Video Thumbnail Generator.

What video formats are supported?

You can upload MP4, WebM, and MOV video files. The output can be in MP4, WebM, or match the first video's format.

How do I merge videos?

Click to select multiple video files or drag and drop them. The videos will be merged in the order shown. You can drag videos up or down to reorder them before merging.

What is the file size limit?

The total combined size of all videos should not exceed 200MB. This ensures smooth processing in your browser. For larger videos, consider using desktop video editing software.

Will merging affect video quality?

Videos are re-encoded to ensure compatibility and seamless joining. Quality is maintained at high bitrate settings for best results.

Video Joiner — Free online video joiner to merge and combine multiple videos into one. Drag and drop to reorder. Supports MP4, WebM, MO — **Video Joiner**

Can I merge videos of different formats?

Yes! All videos are automatically converted to the same format during merging to ensure compatibility. You can choose the output format (MP4, WebM, or match first video).

Is my video file safe?

Absolutely! All video processing happens directly in your browser using FFmpeg.wasm (WebAssembly). Your video files are never uploaded to any server. Everything stays private on your device.

Can I preview before downloading?

Currently, preview is shown after merging. You can download the merged video and play it to verify the result.

How long does merging take?

Merging time depends on the total video length and your device performance. Typically, merging 2-3 short videos takes 30-60 seconds. Longer or more videos will take proportionally longer.