Convert research papers into engaging audio experiences
Free AI-powered photo extender for any aspect ratio with no sign-up required and no watermark
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Pricing model
Freemium
Freemium
Pricing
Free Trial: $0 forever, converts 5 papers with standard voice quality. Researcher Plan: $11 per month (or $8 per month billed annually at $96) with unlimited paper conversions and premium voice quality.
Free to try without sign-up; Basic $9.90 (100 credits), Standard $29.90 (500 credits), Pro $49.90 (1,250 credits). Each successful image uses 5 credits. One-time purchases with no subscription; credits never expire.
Key features
Convert research papers to audio with AI processing
Save time by listening while commuting or exercising
AI-powered explanations for complex formulas and figures
Intelligent chapter navigation to jump to specific sections
Export to Spotify, Apple Podcasts, and YouTube Music
Natural voice narration quality
Customizable knowledge level from beginner to expert
Support for PDF files and arXiv links
Automatic skipping of references and citations
Real AI outpainting powered by gpt-image-2 model
Support for any aspect ratio including 1:1, 4:5, 16:9, 9:16, 21:9 and custom ratios
Free to try without signing up
No watermark on results
Free daily credits with a free account
Supports JPG, PNG and WebP files up to 4MB
Full resolution export
Results typically ready in 60–120 seconds
Works on any mobile or desktop browser without app installation
Secure HTTPS processing with no account required
What makes it different
AI translates complex math, tables, and images into clear explanations without needing to read the paper
Export audio to podcast platforms for learning on-the-go
Chapter navigation allows selective listening to specific paper sections
Customized explanations from beginner to expert level
Real generative AI instead of simple blur-and-stretch algorithms
Optional one-time credit purchases with no subscription
No watermark on downloaded results
Free daily credits automatically top up when balance runs low
Audiolizer
Photo Extender