Video Joiner

About Video Joiner

This online video joiner allows you to merge and combine multiple video files into one video directly in your browser. Simply select your videos, drag to reorder them, and merge. All processing happens locally for complete privacy.

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.

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.