Free online audio converter
Convert audio and video files between MP3, WAV, M4A, FLAC, and OGG free. Runs entirely in your browser: no upload, no signup, no limits.
Drop a video or audio file here
or click to browse. Converted in your browser, nothing uploaded.
MP4 · MOV · MKV · WebM · AVI · WAV · M4A · FLAC · OGG · OPUS and more
🔒 Converted on your device. Your file is never uploaded.
One converter for every common audio format. Drop in an audio or video file, choose MP3, M4A, WAV, FLAC, or OGG, and download the result.
Unlike most online converters, nothing is uploaded. The conversion runs on your device, so it starts instantly, works on large files, and keeps your audio private.
How it works
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Drop your file
Video or audio in any common format. Nothing is uploaded.
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Converted in your browser
FFmpeg runs on your device, so even big files start right away.
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Download
Save the new file. No watermark, no account, no queue.
Frequently asked questions
Is my file uploaded to a server?
No. The converter (FFmpeg compiled to WebAssembly) runs inside your browser, so the file never leaves your device. That also means there is no upload wait, even for big videos.
Which input formats are supported?
Almost anything FFmpeg can read: MP3, WAV, M4A, AAC, FLAC, OGG, OPUS, WMA, plus the audio from MP4, MOV, MKV, WebM, and AVI video.
Is there a limit on how many files I convert?
No. Convert as many as you like; each one runs on your own computer.