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Merge multiple video clips into one MP4, all in your browser.
Combine multiple video clips into a single MP4 file, right in your browser. Upload several videos, reorder them however you like, then merge. Each clip is re-encoded to H.264/AAC for broad compatibility, so mixed formats and resolutions join cleanly. Fully client-side — your videos never leave your device.
Video Merger allows you to combine multiple video clips into a single MP4 file directly within your web browser without installing any software. Because processing happens entirely client-side, your files remain completely private and never leave your device. It automatically re-encodes mixed formats and resolutions into H.264/AAC for seamless compatibility.
Good to know: Very large video files or extensive batch merging may push browser performance limits, and workflows requiring advanced timeline editing, transitions, or professional effects will need dedicated desktop software.
Combine multiple video clips into a single MP4 file directly in your browser without uploading files to a server.
Upload your video clips
Select and upload the multiple video files you want to combine from your local device.
Reorder your video sequence
Arrange the uploaded clips into your preferred chronological order for the final merged video.
Initialize the merging process
Click the merge button to begin re-encoding your clips into a unified H.264/AAC MP4 format.
Download the final MP4 file
Once the client-side processing is complete, save the single merged video file to your device.
Estimated time: PT3M
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Drop videos here or tap to add
MP4, WebM, MOV — add two or more. Up to 200.00 MB total.
Clips are re-encoded to H.264/AAC for compatibility, so merging may take a while for large or many videos. The first run downloads the video engine (~30 MB) once. Everything runs locally in your browser.