| What it does | Convert PDF, EPUB, DOCX and TXT files to MP3 or M4B audio online
| Browser extension that transforms YouTube, Spotify Web and Apple Music into immersive 8D spatial sound
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
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| Pricing model | Freemium
| Freemium
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| 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: Full 8D experience with 8D rotation, Auto DJ, 8 presets, bass/clarity/reverb controls, floating panel with visualizer, 30-second shareable video samples, and 60-second previews of every Pro mode. Pro: $4.99 one-time payment unlocks multi-band surround, HRTF 3D, binaural beats, full-length expo
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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
| - 8D rotation engine with circular, sine, triangle and bounce patterns
- Beat-aware Auto DJ transitions carrying 4-8 beats between tracks
- Multi-band surround with frequency-dependent positioning
- HRTF 3D positioning with Orbit, Figure-8 and Drift paths
- Binaural beats at 15 Hz, 10 Hz, 6 Hz and 3 Hz frequencies
- Real-time audio visualizer with 120x120 canvas
- 30-second shareable video exports with visualizer
- Full-length exports up to 10 minutes as MP4, WAV or M4A
- Interaural time delay and head shadow filtering
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| 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
| - Processes all audio entirely in browser with zero data sent anywhere, ever
- Works directly on YouTube, Spotify Web and Apple Music without disrupting playback
- Bio-accurate interaural delay of 0.7ms with HRTF 3D positioning
- Instant license key delivery via email with immediate activation
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 4 ▲ +1 (up) since last check | 11 ● no change since last check |
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| Trust Flow (Majestic) | 11 | 7 |
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| Citation Flow (Majestic) | 26 | 19 |
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| Referring domains (Majestic) | 49 | 20 |
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DocsToAudio
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