Convert PDF, EPUB, DOCX and TXT files to MP3 or M4B audio online
A collection of easy-to-use web tools for all your audio files
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
Bass Booster with multiple intensity presets
Noise Reducer for background noise removal
Vocal Remover to isolate instrumental
Equalizer to adjust audio frequencies
Tempo Changer to adjust playback speed
BPM Detector for tempo analysis
Audio Converter for format conversion
Waveform and Spectrogram Image generation
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
Easy-to-use web-based tools requiring no software installation
Comprehensive suite of audio effects and processing tools
Pitch conversion including 440 Hz to 432 Hz conversion
DocsToAudio
Audioalter