Merge Videos

Join multiple video clips into one, in the order you set — in your browser.

Select video files

MP4, MOV, WebM — joined in your browser, in real time (about the total length)

点击选择，或将文件拖到此处

如何 Merge Videos

1
Add your clips
Drop in two or more videos — they're read in your browser.
2
Set the order
Use the arrows to arrange the clips; they play back to back.
3
Merge and download
Click Merge; the clips are played and re-recorded into one file in real time.

Do the clips need to match?+

No. Each clip is scaled to fit one common frame size (letterboxed if aspect ratios differ) as it's recorded.

Is anything uploaded?+

No — every clip is played and re-recorded in your browser.

Why does it take so long?+

It plays each clip in turn and records the result, so the wait is roughly the total length of all the clips.

What format do I get?+

MP4 where your browser supports recording it, otherwise WebM.

你们会把我的文件上传到服务器吗？+

不会——这里的每个工具都完全在你的设备上处理文件，不会向服务器上传任何内容。唯一的例外是 AI 工具，它们会把提取的文本（而非文件本身）发送给 Claude 来完成工作。

有文件大小限制吗？+

我们没有人为设置限制，但由于处理过程在你的浏览器中进行，非常大的文件（超过 500MB 或 1000 页）会受到你设备内存的限制，而非我们的限制。