How to Use Bionic Reading Converter
Paste text into the input field or import a PDF/EPUB file
Adjust fixation level (percentage of letters highlighted per word)
Toggle high contrast for more pronounced highlighting
Click Convert to transform your text
Export as PDF, EPUB, image, HTML, or Markdown
Key Features
Adjustable Fixation Levels
Control how much of each word gets highlighted. Lower fixation for experienced readers, higher for those who need more visual anchors.
PDF & EPUB Import
Extract text from existing ebooks and documents. Convert your entire reading library to bionic format.
Multiple Export Formats
Download as multi-page PDF, EPUB for e-readers, PNG image, or copy HTML/Markdown for web use.
100% Offline Processing
Everything runs in your browser. Your documents are never uploaded—complete privacy guaranteed.
Privacy & Security
Text conversion happens entirely in your browser using JavaScript. No server processing, no uploads, no data collection. Your documents remain on your device.
Frequently Asked Questions
What is bionic reading?
Bionic reading highlights the beginning of each word, creating artificial fixation points. Your brain uses these anchors to recognize words faster, reducing eye strain and improving reading speed.
What fixation level should I use?
Start with Medium (50%). If you find yourself still reading every letter, increase to High. Experienced speed readers can use Low (40%) for subtle guidance without distraction.
Does it work for people with dyslexia or ADHD?
Many users with reading difficulties report improved focus and comprehension. The visual anchors help maintain reading flow and reduce the tendency to re-read lines. Results vary by individual.
Can I convert entire ebooks?
Yes. Import PDF or EPUB files up to 5MB. The tool extracts text content and converts it. Export as EPUB to read on e-readers or PDF for printing.
Why is high contrast better?
High contrast mode uses bolder weight for highlighted letters, making fixation points more pronounced. Useful for longer reading sessions or readers who need stronger visual cues.