视频压缩器

How video compression works

Video compression works by encoding only the differences between frames rather than storing each frame completely. H.264 is the most compatible codec, supported on virtually every device. H.265 (HEVC) achieves the same quality at roughly half the file size, ideal for 4K content. AV1 is the newest codec, offering even better compression but slower encoding.

The CRF (Constant Rate Factor) setting controls quality — lower values mean better quality and larger files. A CRF of 23 is the default for H.264 and provides excellent quality for most content.

常见问题

是免费的吗？

是的，视频压缩器 完全免费。无需账户，无水印，无文件大小限制。

我的文件安全吗？

您的文件通过加密的 HTTPS 连接上传，并在下载 1 小时后从我们的服务器自动删除。我们绝不存储、共享或分析您的文件。

我一次可以处理多少个文件？

每个文件最大 500 MB. 对于更大的批量，您可以逐个处理文件。