MP4 数据盒
将支持的元数据盒替换为大小相同的 free 盒。
MP4 · On-device
MP4 video metadata remover
Replace supported MP4 metadata boxes with same-size free boxes while preserving video data offsets.
- 1选择 MP4
- 2清理数据盒
- 3下载 MP4
在您的设备上处理；原始文件不会上传到我们的服务器。
01
MP4 · On-device
Clean boxes while preserving offsets
MP4 files contain structural boxes. This tool replaces supported udta, meta and ilst metadata boxes with same-size free boxes, leaving all media byte offsets unchanged.
It does not re-encode video or audio. Open and play the downloaded copy before publishing.
02
一次处理
处理的 MP4 信息
保留偏移量
视频数据的字节位置不会移动。
检查播放效果
在项目中使用前，请打开下载的副本。
03
建议的操作流程
An MP4 verification workflow
1
Choose an MP4
Use a file below 15 MB.
2
Make a clean copy
Replace supported metadata boxes without shifting other boxes.
3
Play it back
Verify duration, picture and sound in the download.
04
深度指南
Why MP4 offsets must stay fixed
MP4 index tables refer to byte positions of audio and video samples. Replacing supported metadata with same-size free boxes leaves those positions unchanged.
05
深度指南
Verify the cleaned video
Play the new file from start to finish and check its sound. Metadata in unsupported structures or within frames may remain.
08
FAQ
常见问题
Is the video uploaded?
No. It is processed on your device.
Is video re-encoded?
No. Audio and video payload stays at the same byte offsets.
Does it remove all MP4 metadata?
No. Only supported boxes; some UUID or track-specific data can remain.
Should I test playback?
Yes. Play the downloaded copy and verify sound, picture and duration.
Can it remove a video watermark?
No. A watermark in a frame is not an MP4 metadata box.
清理 MP4 元数据。
无需账户。在您的设备上处理。
立即开始