Bionic Reading Converter

Convert text to a bionic-reading style that bolds the start of each word to guide your eyes and speed up reading. Copy the formatted result. All client-side.

Runs in your browser — nothing uploaded
50%
Preview

Bionic reading highlights the start of each word so your eyes can jump ahead. Paste your own text to see how it feels.

"Copy formatted" puts rich text on your clipboard, so the bold stays when you paste into docs and email that support formatting. Everything runs in your browser. Bionic-style reading helps some people and not others — adjust the strength to taste.

Convert plain text into a bionic-reading style that bolds the start of each word to guide your eyes across the line. Tune how much of each word is emphasised, preview it live, and copy the formatted result — all in your browser.

Private by design — your data never leaves your device

How to use it

No account, no upload — it all happens on your device.

1
Type or paste your text.
2
Adjust the bold strength to taste.
3
Read it in the preview.
4
Click Copy formatted to paste the bolded version elsewhere.

How it's meant to help

Anchors for your eyes.

By bolding the opening letters, bionic reading gives each word a fixation point. Some readers say it helps them move through text faster or stay focused, especially on screens. Evidence is mixed and it's very individual — treat it as one more tool, and use the strength slider to find what feels natural.

Tips

  • Lower strength for dense text. Too much bold becomes noise; 40–50% is a good starting point.
  • Paste into a formatting-friendly app.Docs and email keep the bold; plain-text boxes won't.

Frequently asked

What is bionic reading?
It's a text-formatting style that bolds the first part of each word. The idea is that your brain can recognise a word from its opening letters, so the bold 'anchors' let your eyes move faster while the rest fills in. It's a reading aid, not a proven cure-all — some people find it helps, others don't.
How do I keep the bold when I paste it?
Use the 'Copy formatted' button. It puts rich text (HTML) on your clipboard, so the bold survives when you paste into apps that support formatting — Google Docs, Word, email. Plain-text-only fields (like code editors) will drop the bold.
Is my text uploaded?
No. The formatting happens entirely in your browser and nothing is sent anywhere.

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