Couper la Vidéo
选择要保留的视频部分。非常适合删除片段的开头或结尾。
将视频文件拖放到此处
或 点击选择
Max 100 MB • MP4, AVI, MOV, WEBM
Publicité
具体结果
典型文件的真实压缩示例
之前 / 之后
之前
之后
60%
平均减小
8s
平均时间
按模式减小
“几秒钟内将我的 PDF 从 4 MB 减小到 1.2 MB。非常适合通过电子邮件发送！”
Free Video Trimmer Online — Cut Videos Without Downloading Software
Remove unwanted parts from your video by setting a start and end time. Browser-based, fast, no quality loss for keyframe-aligned cuts. Supports MP4, MOV, AVI, WebM.
Keyframe cutting vs frame-precise cutting
Keyframe-aligned cuts (the default): FFmpeg copies the video stream directly without re-encoding — processing is extremely fast (seconds for any video length) and there is zero quality loss. The trade-off is that the actual cut point must align with a keyframe (I-frame), which may differ by 0.5-2 seconds from your requested time. Frame-precise cuts: the video is re-encoded to cut at the exact frame you specified — results in a small quality reduction at the cut segments but perfect timing accuracy. Choose "exact trim" in the settings for frame-precise cutting.
Common video trimming use cases
Removing the first 30 seconds of intro logos and countdown timers from a screen recording. Cutting out a boring or irrelevant middle section of a long webinar. Isolating the best clip from a longer interview for social media posting. Removing trailing dead air or a mistaken recording at the end of a video. Extracting the highlight moments from a sports or gaming session recording.
FAQ
Can I trim a video without re-encoding?
Yes. For keyframe-aligned cuts, the video stream is copied directly without re-encoding — zero quality loss and very fast processing.
How precise can the trim be?
In fast-copy mode: ±0.5-2 seconds depending on keyframe interval. In exact trim mode: frame-precise (typically 1/25 to 1/60 of a second depending on frame rate).
Can I extract multiple clips from one video?
One clip per operation. To extract multiple clips, trim the video multiple times with different start/end points, or use video editing software for complex multi-clip extraction.
What is the maximum video file size?
Videos up to 500 MB per upload.
Does trimming reduce video quality?
In fast-copy mode (default): no quality loss. In exact-trim mode: minimal re-compression at the cut points only.
Can I specify trim times in minutes and seconds?
Yes. Enter times in HH:MM:SS format (e.g. 00:01:30 for 1 minute 30 seconds) or in total seconds (e.g. 90).
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