Bionic Reading Converter
Text
Bionic reading is a typographical technique where the first few letters of each word are bolded — the idea is that your eyes latch onto these high-contrast fixation points and your brain fills in the rest of the word from peripheral vision, letting you scan denser text faster with less fatigue. Paste any article, document, or block of text and get an instant preview, with a fixation strength control to tune how aggressively the leading characters are emphasized. The output is yours to copy as inline HTML (paste straight into rich-text editors, Notion, Confluence), Markdown (paste into a markdown document), or plain text (when you just want the source back). Everything runs locally — your text never leaves the browser.
Stats: 37 words · 199 chars
Preview
Output stays in your browser — nothing is uploaded. HTML output uses <b> tags; Markdown uses **bold** wrappers.
How to use
- Paste or type your text into the input area at the top.
- Pick a fixation strength: weak (40% of each word bolded), medium (50%, the default), or strong (60%).
- Read the live preview, then copy as HTML, Markdown, or plain text using the buttons in the header.
Frequently asked questions
- Does bionic reading actually make me read faster?
- Evidence is mixed. Some readers anecdotally report better focus on dense text; controlled studies have not consistently shown a speed gain. Treat it as a comfort tool rather than a guaranteed productivity hack — if it feels easier on your eyes, use it; if not, the plain text is just as fast.
- How does the fixation strength work?
- It controls how many leading characters of each word get the bold. 'Weak' bolds 40% of the word length, 'medium' (the default) 50%, and 'strong' 60%. Punctuation and whitespace are skipped, and very short words always get at least one bolded letter.
- Can I paste it into Notion / Google Docs / email?
- Yes — use the HTML copy button. Notion and most rich-text editors recognize the inline <b> tags. For Markdown editors (Obsidian, Bear, GitHub README), use the Markdown copy which produces **bold** syntax. The plain-text copy just gives you the unformatted source again.
- Is anything sent to a server?
- No. Every transformation runs in your browser as you type. Nothing leaves the device, nothing is stored beyond your own browser's local cache for the input field.
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