视频变速器

Upload a video, choose a slower or faster playback speed, and download an MP4 without a watermark. Convertr keeps the source dimensions and accepts videos up to 1 GB.

Change video speed online

MP4, MOV, WebM, MKV, AVI, M4V, FLV, WMV, MPEG, and 3GP files are accepted up to 1 GB.

选择视频或拖放到此处

未选择任何文件

速度

相关媒体工具

视频剪辑器 Cut a clip before changing playback speed. Video Compressor Reduce file size after exporting a faster or slower video. 视频旋转器 旋转视频并修复侧向拍摄的手机录像。 视频转GIF制作器 Create an animated GIF from a sped-up or slowed-down segment. 从视频中提取帧 Save still images from selected timestamps. 从视频中提取音频 Download the audio track from a video file. 视频合并器 Join clips before exporting the final video. 视频转换器 转换MP4、MOV、WebM、MKV、AVI等。 MP4 to MP4 Rebuild or re-encode MP4 video files.

常见问题

Is this video speed changer free?

Yes. You can speed up or slow down videos for free, without signup, software installation, paid APIs, or a watermark.

Will changing speed reduce resolution?

No. Convertr preserves the source dimensions and uses a high-quality re-encode because speed changes require new video timestamps.

Can I mute the audio?

Yes. Use the mute-audio option when you only need a visual time-lapse or slow-motion video. Otherwise, Convertr adjusts audio tempo with ffmpeg.

最大上传大小是多少？

上传限制为1 GB，与Convertr的其他功能一致。在此限制内，支持全分辨率视频。