Bionic Reading Converter
Paste any text and this tool bolds the first few letters of each word — a bionic-style "fixation" format that helps your eyes skim across the line. Adjust how much of each word is bold, then copy the result. Nothing is uploaded — your text stays in your browser.
Type or paste your text below and the bold version updates live. Drag the fixation slider to bold more or less of each word, and use the copy buttons to keep the formatting (rich text) or grab Unicode-bold characters for plain-text places like social bios.
Your text stays in your browser — nothing is sent anywhere.
How to use the bionic reading converter
Type directly into the box or paste text from an article, a study PDF, an email, or your own writing. The tool immediately shows a version where the first part of each word is bold, so your eyes have an anchor to fixate on as they move across the line.
Fixation strength controls how much of each word is bold. A lighter setting bolds just the first letter or two of longer words; a stronger setting bolds closer to half. Short words already only need their first letter, so the slider mostly affects longer words.
Skip short words leaves one-, two-, and three-letter words (like "a", "of", "the") in plain text, so only the longer, information-carrying words are emphasized. Some readers find this cleaner; turn it off to bold every word.
Copy formatted copies the result as rich text, so the bold survives when you paste into a document, email, or any editor that supports formatting. Copy as bold text converts the emphasized letters into Unicode-bold characters, which keep their bold look even in plain-text places like social media bios or chat.
Everything runs in your browser — the text you type or paste is never uploaded.
Common questions
What is bionic-style reading? It bolds the leading letters of each word so your eyes fixate on them and your brain fills in the rest. The goal is to guide your gaze and help you skim. Some readers — including people with ADHD or dyslexia — find it helpful, but it is a personal aid and results vary.
Will it make me read faster? The evidence is mixed and depends on the reader. Many people say it helps them focus on long text; formal studies have not shown a consistent speed gain for everyone. The honest answer: try it on your own text and keep it if it helps.
Why do short words stay plain sometimes? When "Skip short words" is on, one-to-three-letter words are left unbolded so the emphasis lands on the words that carry meaning.
Is anything saved or uploaded? No. The tool is fully client-side — your text never leaves your browser and nothing is stored.