视频压缩

使用方法

1. 1
   选择设置

   填写信息或选择您需要的选项。

2. 2
   查看结果

   更改任何内容时，预览会立即更新。

3. 3
   下载或保存

   将结果保存到您的设备。不会向服务器发送或保存任何内容。

About this tool

Make a video file smaller by lowering quality and size. The conversion runs inside your browser with a WebAssembly build of FFmpeg, so the file is not uploaded and there is no account, queue or watermark. Add the file, choose the quality and press convert. The first run downloads the converter once; after that it starts quickly.

How it works

Your browser loads the FFmpeg engine from this site, reads the file from your device and writes the result back to your device. Processing happens on your own processor, so speed depends on your computer or phone and on the length of the file. Short clips finish in seconds; a one hour video can take several minutes.

Quality and size

Higher quality means a larger file. For speech, 96 to 128 kbps is plenty; for music choose 192 kbps or more. For video, the balanced setting is a good start, and you can lower the maximum width to get a much smaller file for chat apps.

Limits

Browsers have limited memory, so files above about 400 MB are not accepted here. If a file fails, try a shorter clip or another format. Some rare codecs are not supported.

Privacy

Because nothing is uploaded, private recordings, family videos and meetings stay on your device. Close the tab and the data is gone.

获得最佳结果的提示

开始之前请花一点时间阅读选项，并先用一个小例子试用工具。一切都在您设备的浏览器中运行；您输入或添加的任何内容都不会被上传，关闭标签页会清除所有内容。如果看起来不对，请刷新页面重试，或使用本页的报告链接告诉我们出了什么问题。如果结果仍然看起来不对，请每次只更改一个值，看看哪个输入影响最大。如果您还会再用，请收藏此页。