Convert media
MP4, MP3, WAV, MOV, WebM, M4A, FLAC, OGG — in your browser.
Drop an audio or video file, or click to choose
MP3, M4A, WAV, MP4, WebM, MOV. Runs entirely in your browser.
About Convert media
Convert between MP4, MP3, WAV, MOV, WebM, M4A, FLAC, and OGG — all running locally in your browser. Useful for extracting audio from a video, sending a WAV that someone needs in MP3, or moving between formats your phone or DAW expects.
Frequently asked questions
Is my file uploaded?+
No — ffmpeg.wasm runs in your browser. Everything stays on your device.
Which formats are supported?+
Video: MP4, MOV, WebM, MKV. Audio: MP3, WAV, M4A, FLAC, OGG, AAC.
Can I extract just the audio?+
Yes — drop a video, pick MP3 or WAV as output, and the audio track is extracted.
How long can my file be?+
Practical limit is around 30-60 minutes due to browser memory. Longer files should be processed with a desktop tool.
Will quality drop?+
Lossless formats (FLAC, WAV) stay lossless. Lossy-to-lossy conversion introduces minor quality loss.