Video & Audio Converter
Free online video and audio converter. Convert MP4, MOV, WebM, MKV, AVI and turn video into GIF, or convert audio between MP3, WAV, OGG, M4A and AAC — all in your browser with no upload. Powered by FFmpeg compiled to WebAssembly.
Drop a video or audio file
or click to choose · MP4, MOV, WebM, MKV, AVI, MP3, WAV, M4A — converted in your browser
Frequently asked questions
Is the video converter free and private?+
Yes. It runs entirely in your browser using FFmpeg (WebAssembly) — your files are never uploaded to a server, and there are no limits or watermarks.
What can I convert?+
Video: MP4, MOV, WebM, MKV, AVI and video-to-GIF. Audio: MP3, WAV, OGG, M4A, AAC, and extracting audio from any video.
Why is the first conversion slow?+
The first run downloads the FFmpeg engine (~30 MB) once, then it's cached. Conversions run on your device, so large videos take longer than a GPU server would.