Convert PDF, EPUB, DOCX and TXT files to MP3 or M4B audio online
Free online tool to reverse audio files in your browser without uploading
Stage
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Founded
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Based in
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Pricing model
Freemium
Free
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.
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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
Reverses MP3, WAV, M4A, OGG and FLAC files in the browser
Backwards preview before download
WAV export
No upload to a server
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 processing happens locally in your browser without uploading files to a server
Free with no signup required and no limits on file count
Download reversed audio as WAV format for easy editing
DocsToAudio
Audio Reverser