Convert WAV files into compact M4A files that play smoothly in Apple apps and on most modern devices. Everything happens locally in your browser, so your recordings are never uploaded.
In “Local” mode your file never leaves your device. No uploads, no server – ideal for sensitive recordings.
Pick “Local” for full privacy or “Server” for very large files and every format.
No sign-up, no queue, no watermark. Choose a file, convert, download.
M4A usually uses the AAC codec, which often sounds slightly better than MP3 at the same bitrate. Both are lossy, so some detail from the WAV is discarded during conversion.
M4A plays effortlessly on Apple devices, modern Android phones and most players. For very old hardware, MP3 is sometimes the safer choice.
No, conversion runs directly in your browser by default. An optional server mode is only offered for particularly large files.
A large WAV becomes a much smaller M4A, often just a tenth to a fifth of the original size, depending on the bitrate you select.