概述
MP4是视频的全球标准 - 被每个设备、平台和应用程序使用。WebM是谷歌为网络流媒体提供的开源替代方案。MOV是苹果的专业编辑格式。
选择正确的格式取决于您的使用案例：分享、网络流媒体或专业编辑。
Head-to-Head Comparison
兼容性
MP4: MP4在每个设备、浏览器、操作系统和平台上都受支持。
WebM: WebM在所有主要浏览器中受支持，但在较旧的iOS中不原生支持。
Winner: MP4
网络流媒体
MP4: MP4在所有支持HTML5视频的浏览器中均可使用。
WebM: WebM是专为网络流媒体设计的。
Winner: WebM
视频编辑
MP4: MP4在几乎所有视频编辑器中都受支持 - Premiere、Final Cut、DaVinci Resolve。
WebM: WebM在专业编辑工作流程中不太常见。
Winner: MP4
文件大小
MP4: 使用H.264的MP4非常高效。使用H.265的MP4在相同质量下小40-50%。
WebM: 使用VP9的WebM与H.264 MP4相当。使用AV1的WebM与H.265相媲美。
Winner: 平局
Open Source
MP4: MP4使用需要支付版权费的专利编解码器（H.264、H.265）。
WebM: WebM使用免版权费的编解码器（VP8、VP9、AV1） - 完全开源。
Winner: WebM
Three Containers, Shared Roots
All three are container formats. MP4 and MOV share a common lineage: the ISO Base Media File Format that underlies MP4 was derived from Apple's QuickTime (MOV) atom structure, so both organize media into nested atom/box elements.[1][5][6] WebM is a different lineage entirely, a restricted profile of the Matroska container designed by Google for the open web, holding VP8/VP9 or AV1 video and Vorbis or Opus audio.[3][4]
Codecs and Intended Use
MP4 typically carries H.264 or H.265 video and AAC audio, the combination with the widest hardware decoder support.[2] WebM deliberately restricts itself to royalty-free codecs, making it suited to open-standard streaming and HTML5 video.[4] MOV, retaining QuickTime's rich track model, is geared toward professional editing and can hold high-bitrate intermediate codecs, timecode, and multiple media tracks.[6]
Why MP4 and MOV Are So Similar
Because MP4 was standardized directly from the QuickTime format, the two are structurally close, and a file often carries the same H.264 and AAC streams in either container.[1][5] Converting between MP4 and MOV can therefore frequently be done by remuxing, rewrapping the streams without re-encoding. The practical difference is reach: MOV is native to the Apple ecosystem, while MP4 is the cross-platform default.
Royalty-Free by Design
WebM's defining characteristic is that it admits only royalty-free codecs, which is why it was created: to provide a web video format free of patent-licensing requirements for browser vendors and content providers.[3][4] MP4 and MOV commonly carry patented codecs such as H.264 and H.265, a difference that matters for open-web distribution but not for typical local playback.
Compatibility and Applications
MP4 is the universal interchange format, playing on virtually every device and platform.[1] WebM is used for open, royalty-free web streaming where modern browser support is present, often alongside an MP4 fallback.[3] MOV is used inside Apple-centric and professional editing workflows, though it is less portable across non-Apple consumer devices.[5]