Bold the first part of every word to help your eyes skim and read faster.
Converted locally in your browser — your text stays private.
What is Bionic Reading and how does it work?
Bionic Reading bolds the first few letters of each word to give your eyes a fixation point, letting your brain fill in the rest so text is quicker to skim. A higher fixation strength bolds more of each word, so at medium strength roughly the opening letters of each word are emphasised. It is a reading aid whose benefit varies from person to person.
Understanding your result
Bolding the start of each word gives the eye a fixation point, which can reduce how long it lingers on each word. It is a reading aid, and how much it helps varies from person to person.
Formula and method
For each word, the tool bolds the first portion of its letters. A higher fixation strength bolds more of each word; words longer than three letters always keep at least one un-bolded letter at the end.
Worked example
At medium strength, “reading” becomes “**read**ing” and “faster” becomes “**fas**ter”.
How to use this tool
- Paste the text you want to read.
- Choose a fixation strength.
- Read it on the page, or copy/download the formatted version.
Common mistakes to avoid
- Pasting the copied HTML into an app that shows raw tags instead of formatting — use a rich-text editor or the downloaded file.
- Setting the strength so high that almost every letter is bold, which removes the effect.
About the Bionic Reading Converter
The Bionic Reading Converter bolds the first few letters of each word so your eyes can fixate on the leading part and let your brain complete the rest. The result is text many people find quicker and easier to skim.
Who should use this tool
Students, busy readers, and anyone who wants to get through articles, notes or study material faster — including readers who find dense text hard to focus on.
Benefits
- Read and skim long text more quickly.
- Adjust how much of each word is bolded.
- Copy the formatted HTML or download a ready-to-open file.
- Everything runs in your browser, so private notes stay private.
Practical use cases
- Speed-reading articles, reports or research.
- Turning study notes into an easier-to-scan format.
- Making long instructions quicker to follow.
Explore all Text and Writing tools
Frequently asked questions
Does Bionic Reading really make you read faster?
It is a reading aid that helps many people skim more comfortably, but results vary by individual. Try a couple of strengths to see what works for you.
What does the Copy button give me?
It copies the formatted HTML so you can paste it into a document, email or web page that supports bold text. You can also download a ready-made .html file.