Cut & Edit
视频变速器
制作慢动作或快进片段，实时看到时长变化。
Waiting for media
Processing video...No file selected
Selected files stay on this device. File sizes shown before processing use browser metadata only, such as 1.00 MB units.
Your video is processed locally in your browser and is not uploaded to our servers. Processing starts only when you click the button - nothing happens until then.
使用方法 视频变速器
- 1.上传 - 选择源视频。
- 2.选择速度 - 从 0.25x 到 2x 选择预设，或输入自定义值。
- 3.预览 - 播放器更新播放速度以便快速检查。
- 4.导出 - 处理并下载变速后的视频。
视频变速器 功能
Supported Video Speed Changer Formats
Privacy
Files are handled as local browser objects. BeYourTools does not upload video or audio contents, does not store filenames, and does not send media to third-party processing APIs.
Video Standards & Simple Playback Guide
Working with video requires balancing file size with clear playback. Using Video Speed Changer helps you prepare clean video clips that play smoothly on any phone, tablet, or computer. Whether you need smaller clips for email or fast-loading videos for your website, our tool gets the job done quickly.
Fast Browser Processing
All video slicing, frame capture, and encoding run directly inside your browser. Your computer or phone handles the work locally, so your large video files never upload over the web.
Everyday Compatibility
Your saved clips keep standard screen shapes, true colors, and clean sound. They open immediately in Apple QuickTime, Windows Media Player, Chrome, and Safari without extra plugins.
视频变速器 常见问题
变速会改变时长吗？
会。2x 的视频时长约减半，0.5x 的约翻倍。
音调会保持吗？
常用速度用 FFmpeg 音频变调滤镜，但极端设置与源编码不同，音调保持效果可能有差异。
我的视频会被上传到服务器吗？
不会。本工具在您的浏览器本地处理文件，BeYourTools 不会上传、存储视频，也不会把媒体发给处理 API。
Does processing reduce the quality or resolution of my original video?
Trimming, cutting, and frame extraction keep your original video resolution and picture clarity. Our compressor tool lets you choose how much file size to shave off while keeping your picture sharp.
Are my personal videos uploaded to or viewable by anyone else?
No. All video editing happens right in your browser memory. Your files are never sent to our servers or saved anywhere online. Everything stays safe on your own device.