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macOS Native App·

Audiobook Conversion & ACX Submission
Made Completely Effortless

Drop in your raw audio tracks. Audibound automatically checks and fixes ACX compliance errors, reduces background noise, extracts metadata, auto-sorts chapters, and binds your DRM-free M4B audiobook.

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Audibound Converter Desktop Demo
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The easiest workflow in audio.

Drop in your files, and Audibound Converter/Binder automatically organizes chapters, extracts metadata, verifies ACX compliance, and binds everything into a professional M4B file—all without complex spreadsheets or confusing studio tools.

  • Batch conversionConvert MP3 / WAV / AAC / M4A / FLAC / OGG to professional M4B — or combine existing M4Bs into one.
  • ACX complianceLoudness, peaks and noise floor handled automatically. Files leave ready to upload.
  • Metadata & chaptersMetadata pulled automatically from your audio files. Edit chapter names before you bind.
  • Mix any formatCombine any combination of formats in a single bind. M4B, MP3, WAV, FLAC — all in one pass.
  • Drag and dropDrop files in, auto-sort handles chapter order. Disk space checked before every conversion.
Current Project
12 Chapters
ACX QC passed ✓
📚
Bind with ease
Why Narrators & Indies Rely on Audibound

No complex audio engineering required. Designed specifically to take the pain out of audiobook publishing.

Smart ACX Compliance Check & Auto-Fix
Other tools only check errors. Audibound checks AND automatically fixes loudness (RMS -23 to -18dB), peak levels, and noise floor—guaranteeing ACX approval on your first submission.
Audio Noise Reduction & Enhancement
Built-in noise reduction cleans up background room hiss, mic hums, and audio artifacts while preserving natural voice warmth and clarity.
High-Speed Batch Audio Processing
Ingest and convert dozens of chapter tracks or multi-volume audiobook series simultaneously in a single, high-speed batch run.
Automatic Project Auto-Save
Never lose your chapter ordering, track titles, or processing settings. Audibound automatically saves your active state in real time.
100% Offline & Private Processing
Your unreleased manuscript recordings never touch an external cloud or server. All processing runs 100% locally on your Mac for total speed and confidentiality.
Intelligent Auto-Sort & Drag-and-Drop
Drop in messy file names (e.g., Track_01.wav, ch2.mp3). Intelligent sorting automatically orders chapters, extracts titles, and cleans up metadata.
Embedded Cover Art Restoration
Detects existing chapter titles and restores embedded cover art automatically, creating a pristine M4B file ready for Apple Books and Audible.
DRM-Free M4B Output
Universally playable across every major player (Apple Books, Smart AudioBook Player, Bound, Audible) with zero lock-in.
1 Year of Software Updates Included
Your license includes one full year of continuous feature updates and platform performance enhancements.
Multi-Format Input & Output Support:
MP3WAVAACM4AFLACOGGM4B
BYOM ‡
YEARLY LICENSE
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Includes 1 full year of software updates & desktop support.
  • ✔ Native Desktop App (macOS — Apple Silicon & Intel)
  • ✔ Smart ACX Compliance Check & Auto-Fix
  • ✔ Audio Noise Reduction & Hiss Removal
  • ✔ Automatic Project Auto-Save & State Recovery
  • ✔ High-Speed Batch Audio Processing
  • ✔ Convert MP3, WAV, AAC, M4A, FLAC, OGG & M4B
  • ✔ 100% Offline Processing (Complete Privacy)
  • ✔ Windows Version (Join Waitlist)

*What does ACX-ready actually mean?

ACX (Amazon's Audiobook Creation Exchange) has strict technical requirements for file format, loudness, peak levels, noise floor and metadata structure. Even small issues can lead to rejection and delay publication.

Audibound processes and corrects your files before you upload — so you meet those requirements every time, without having to understand the technical details yourself.

The same technical standards are used by every major audiobook platform. Files you produce with Audibound are ready to publish on Audible, Apple Books, Spotify, Findaway Voices, Author's Republic, Kobo, Google Play Audio, and more.

Most tools help you record.Audibound helps you deliver.

†What does DRM-free mean for you?

DRM (Digital Rights Management) is code attached to an audiobook that prevents it from being played anywhere except a specific app (like Audible). It locks listeners in and locks you out of direct sales.

Audibound produces DRM-free, universally playable M4B files. You own your files completely. That means no platform lock-in, no restrictions on where your audiobook can be played, and no middleman between you and your listeners.

This means you can sell your audiobooks directly to your fans via Shopify, Kickstarter, Bookfunnel, or your own website, letting you keep 100% of the royalties instead of settling for platform splits.

‡Bring Your Own Mic (BYOM)

Some audiobooks are produced by studios. Yours doesn't have to be.

With Audibound Converter/Binder, your recordings go straight into a production pipeline that validates, packages, and delivers -- no third-party studio, no outsourced quality check, no waiting. You control the timeline, the output, and the rights.

If you can record it, Audibound can finish it.

BYOM applies to Converter/Binder. Audibound Studio uses its own voices, so no mic required.