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Processed in your browser · no upload

裁剪视频(剪掉头尾)

剪掉头尾、留中间一段,不重新编码、近乎瞬间完成。

录屏开头多了十秒废话、视频结尾忘了关——剪掉就好。转换猫让你设一个起点和终点,把中间那段单独留下来。

Drag & drop or click to select a fileFiles are processed locally in your browser, never uploaded

Stream copy doesn't re-encode — near-instant, no quality loss; the start snaps to the nearest keyframe.

裁剪视频

  1. 1拖入或选择一个视频文件。
  2. 2设置起始时间和结束时间(保留中间这一段)。
  3. 3点「裁剪」,转换猫用流复制按时间切,不重新编码。
  4. 4下载剪好的片段。全程在本地、近乎瞬间。

裁剪视频

  • 不重编码、不掉画质:按关键帧做流复制,只切时间不重压画面,剪出来和原片一样清晰。
  • 快到几乎瞬间:跳过了最耗时的视频编码,几百 MB 的视频也是秒级完成。
  • 视频留在本机:录屏、私人片段剪一刀就发,不经过服务器。

Frequently asked questions

裁剪用的是「流复制」——不重新编码画面,只把指定时间段的数据原样拷出来,所以几乎瞬间完成。压缩则必须把每一帧重新编码到更低码率,是计算量大得多的活,自然慢。

流复制按最近的关键帧切,起点可能会对齐到附近的关键帧、有零点几秒的偏差(这是无重编码的固有取舍,换来速度和零画质损失)。要逐帧精确剪辑,需要重新编码的专业剪辑软件。

Updated · ConvertMeow team

Sources, review and limits

Last verified

2026-06-17

Author

ConvertMeow editorial desk

Reviewer

Browser media tooling review

Primary sources

  • Browser File, Canvas, Audio and Video APIs
  • Open-source client-side conversion libraries where a format needs a parser or encoder
  • User-provided files processed in the browser

Conversion output depends on the original file, browser support and codec limits. Use the exported file for convenience, and verify mission-critical media in your own workflow.