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Free Online M4B to WAV Converter

Convert M4B audio to WAV online for free.

Drop M4B files here
or click anywhere in this box to choose files

Max file size 50MB. Sign up for more.

When WAV is the right output

WAV is uncompressed lossless audio — pristine but large (~10 MB per minute at CD quality). Convert to WAV when your destination is audio production (DAWs like Logic, Ableton, Pro Tools all use WAV natively), voice-over delivery, or when a broadcaster / stock-audio marketplace specifies uncompressed. Never for casual listening — file sizes make no sense.

M4B to WAV FAQ

Quick answers about compatibility, quality, metadata handling, and the most common reasons to convert M4B files to WAV.

How do I convert M4B to WAV?
Upload your M4B audio to iFormat and click Convert. The track is decoded and re-encoded to WAV with metadata preserved. It's free, needs no account, and supports batch conversion of albums or playlists.

How to convert M4B to WAV without losing sound quality
WAV is an uncompressed lossless audio format. Converting to a lossless target (WAV, FLAC, AIFF) preserves every detail of the original. Converting between lossy formats involves a small, usually inaudible re-encoding step. For the best result, always start from the highest-quality source file you have.

Can I convert multiple M4B files to WAV at once?
Yes — upload an entire album or playlist of M4B files and iFormat batch-converts them all to WAV. Metadata (title, artist, album, cover art) carries over for each track, so your library stays organised after conversion.

Does M4B to WAV conversion keep track info like artist and album?
Yes — ID3 metadata such as title, artist, album, and cover art carries over automatically wherever the WAV format supports it, so your library stays organised after conversion.

How do I open M4B files?
On Windows: iTunes, or any audiobook player that keeps chapter marks. On a Mac: Apple Books, natively. An audiobook container. It plays in most audio apps, but only audiobook-aware players keep the chapters and remember your position.

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