Convert PDF, EPUB, DOCX and TXT files to MP3 or M4B audio online
Find and fix the bass note your room exaggerates
Stage
Not given
Startup
Founded
Not given
2026
Based in
Not given
Not given
Pricing model
Freemium
Free trial
Pricing
Free: Standard voices with 50,000 characters per day limit for signed-in users. Premium: Pay-as-you-go credits starting at $5.99 for 5,000 credits, $15 for 15,000 credits, $30 for 30,000 credits, or $50 for 50,000 credits. Credits are valid for 1 year.
Free for 14 days. One-time lifetime unlock: $19.99 (launch price until November 5; regular price $29.99). Room scans always free.
Key features
Convert PDF, EPUB, DOCX and TXT files to MP3 or M4B audio
300+ Standard voices in 30+ languages
800+ Premium AI voices via ElevenLabs and Gemini
Select pages or chapters before conversion
Review and edit extracted text before converting
Download as ZIP of MP3 files or single M4B audiobook
Background conversion for Premium users
Re-download audio for 7 days after generation
Voice cloning with ElevenLabs
Privacy-first: documents parsed in browser, never uploaded to servers
Automatic room bass frequency detection using microphone or ear
Room profiles with per-room settings
DAW Audio Unit plug-in for Mac
Zero-delay operation in DAWs
Only cuts, never boosts audio
Windows 10+ and macOS 14.2+ support
Works with Bluetooth and wired speakers
Two-minute setup process
Available in English and Turkish
What makes it different
Built specifically for long documents with chapter selection and text preview
Free tier with 50,000 characters daily allowance, no credit card required
Access to premium AI voices from ElevenLabs and Google Gemini with pay-as-you-go pricing
Document privacy: file parsing happens in browser, sensitive content never uploaded
All audio remains on your computer with no data collection
Works with untreated rooms without replacing acoustic treatment
DocsToAudio
Unboom