视频格式转换与处理工具，支持 MP4、MOV、WebM 等格式转换、压缩、剪辑与提取，适用于视频预处理与多端播放。 浏览器本地处理、数据不上传、即开即用。A free online collection of Video Tools tools. All processing runs in your browser, no upload, no registration.
Video files run to hundreds of megabytes, which makes uploading to a conversion site both slow and risky. These tools transcode directly in the browser using a WebAssembly build of FFmpeg, so the file never leaves your computer and speed depends on your own CPU rather than a server queue. It is ideal for quickly trimming a clip, turning a phone-recorded MOV into a universally playable MP4, or pulling the audio track out of a video.
It depends on your hardware and clip length. Clips under a minute usually finish in well under a minute; trim long videos before converting.
MP4, MOV, AVI, MKV, WebM and FLV can all be read. Output focuses on MP4 and WebM for the widest compatibility.
No. Transcoding runs in the open page, so closing the tab cancels the job. Wait for it to finish before navigating away.