MP3 → M4B

Convert MP3 to audiobook with embedded chapters

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M4B → MP3

Extract high-fidelity MP3 from audiobook

Drop M4B

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M4B Demux (Chapter Splitter)

Split M4B into individual MP3 chapter tracks

Drop M4B to split into chapter MP3s

Extracting...0%

Audio Format Converter

Convert between MP3, WAV, FLAC, AAC, OGG, ALAC

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AI Audiobook Generator

BPM4B preprocessing + abogen TTS — PDF/DOCX/TXT/EPUB → M4B

Drop document (PDF/DOCX/TXT/EPUB/MD)

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✨ BPM4B Magic

Preprocess documents with Roman numeral resolution & LitRPG stat block compaction

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Audio Merge (Zero-Copy)

Merge multiple files with stream copy for maximum quality

Drop multiple audio files

🔇 Acoustic Auto-Chaptering

Detect chapter breaks from silence regions in audio

Drop audio file for silence analysis

✂ī¸ Silence Trimmer

Strip dead air at borders (or all silence) from audio

Drop audio to trim

đŸ–ŧī¸ Cover Art

Extract or inject cover art without re-encoding audio

Extract Cover

Drop file to extract cover art

Inject Cover

📊 Pre-Flight Size Estimator

Estimate output size before converting

Drop files to estimate

Document → EPUB

Convert PDF/DOCX/TXT/MD to ebook format

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Metadata Editor

Extract, edit, lookup from Open Library

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📋 Job History

Track all conversions and processing jobs

TypeSourceStatusTime

đŸ’ģ System Information

Resources, dependencies, and capabilities

⌨ī¸ Keyboard Shortcuts

Customizable key bindings for power users

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Dashboard / Home⌘1
MP3 → M4B⌘1
M4B → MP3⌘2
Format Converter⌘3
Demux⌘4
AI Audiobook⌘5
BPM4B Magic⌘6
Batch Merge⌘7
Silence Chaptering⌘8
Cover Art⌘9
Size Estimator⌘0