Voxbound merges loose audio files into a single, clean M4B — with chapter markers, metadata, and cover art that actually work in real players. No command line. No FFmpeg setup.
One-time purchase · FFmpeg bundled · Windows 10 & 11
Drop your files in, and Voxbound handles the encoding, chapters, tags, and the fiddly compatibility details that make audiobooks break.
Combine MP3, M4A, M4B, AAC, FLAC, and WAV into one properly structured file — with a lossless copy path when sources already match.
Auto-generate chapters from your files, then edit titles and timestamps, split, merge, or import from .cue and .txt.
Loudness normalisation (EBU R128), silence trimming, gap control, and EQ presets — applied cleanly without double-encoding.
Pick Apple Books, Audiobookshelf, Prologue, and more — Voxbound conforms the output and validates it after export.
Queue whole libraries, watch a folder, import a manifest — or script it all headlessly with the bundled command line.
Full tags, naming templates, cover art, and one-click metadata lookup from Open Library — no typing the same author twice.
Beyond the merge: an export summary, a real chapter editor, a batch queue, a watch folder, repair & verify, and settings that remember. These are the actual screens.
Drag in a folder of audio. Voxbound sorts them, strips messy filenames, and lines up your chapters automatically.
Add a cover and metadata, tweak chapters, pick a player profile and any processing — or just accept the smart defaults.
Hit merge. Voxbound builds the M4B, embeds everything, and validates the result against your chosen profile.
The same audio, before and after a single Voxbound merge.
Each profile sets the format, codec, sample rate, and requirements your target expects — then validates the export.
Every export is validated after merge — codec, bitrate, sample rate, chapters, and cover, checked against the profile.
No. Voxbound installs like any Windows app — a normal installer, or a portable zip if you'd rather not install anything — with FFmpeg bundled inside. Nothing else to download and no command line required, though a headless CLI is included if you want it. The app window runs on Microsoft's Edge WebView2 runtime, which is already part of Windows 10 and 11.
It reads MP3, M4A, M4B, AAC, FLAC, and WAV, and exports a chaptered M4B or a single MP3. When your sources are already compatible, it copies losslessly instead of re-encoding.
Yes — that's the point. Pick a compatibility profile and Voxbound conforms the codec, sample rate, chapters, and cover to what that player expects, then validates the finished file so you know before you load it.
No — Voxbound is a one-time purchase, not a subscription. Buy it once, use it forever, fully offline.
The standard licence covers personal, private use. Any use by or for a business, organisation, client project, or other revenue-generating activity needs a business licence — business and small-team licences are available.
Voxbound targets Windows 10 and 11 today. macOS and Linux aren't supported yet — it's built specifically for the Windows desktop.
A clean, chaptered M4B is a few clicks away.
Voxbound
