Add a responsive reading time calculator to an HTML website, WordPress site, Webflow project, library guide, publication, course page, or LMS that permits custom JavaScript. The free v1 embed needs no account, API key, iframe, or backend integration.
<voicebrief-reading-time></voicebrief-reading-time> <script async src="https://voicebrief.io/widgets/reading-time-calculator-v1.js"></script> <noscript><a href="https://voicebrief.io/tools/reading-time-calculator">Reading Time Calculator by VoiceBrief</a></noscript>
After the JavaScript file loads, pasted text and calculations remain in the visitor's browser. The v1 widget makes no fetch requests, uses no cookies, analytics, local storage, or session storage, and loads no framework or API dependency. Shadow DOM protects the layout from most host-page styles.
The versioned reading-time-calculator-v1.js URL is immutable. Future behavior or design changes will use a new version so an existing publisher can opt in deliberately.
A restrictive Content Security Policy must allow scripts from https://voicebrief.io. Hosted platforms that remove script tags cannot run this version. For page-count planning, audiobook comparisons, a reverse planner, shareable results, and a timed WPM test, use the full reading time calculator.
