Add daily investment wisdom from Buffett, Munger, Graham, Dalio, Lynch, and other masters to your website with one line of code.
Add this to your HTML:
<div id="keeprule-widget" data-theme="light"></div>
<script src="https://keeprule.com/widget.js"></script><div id="keeprule-widget" data-theme="light"></div>
<script src="https://keeprule.com/widget.js"></script><div id="keeprule-widget" data-theme="dark"></div>
<script src="https://keeprule.com/widget.js"></script>- Zero dependencies — Pure vanilla JavaScript, no frameworks needed
- One file — CSS is embedded in the JS, just include one script
- 50 curated principles — From Buffett, Munger, Graham, Dalio, Lynch, Marks, Klarman, Templeton, Fisher, and Soros
- Daily rotation — Automatically shows a different principle each day
- Responsive — Adapts to any container width (max 520px)
- Light & Dark themes — Matches your site's design
- Tiny footprint — Under 5KB
The widget selects one principle per day based on the day of the year, so all visitors see the same quote on any given day. It cycles through all 50 principles over time.
Place a <div> with id="keeprule-widget" where you want the widget to appear. Set data-theme to light or dark.
If no container div is found, the widget renders inline where the script tag is placed.
Open widget-demo.html in a browser to preview both themes.
Built by KeepRule — AI-powered investment principles platform for mastering the wisdom of Buffett, Munger, and the world's greatest investors.
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- 30-Day Challenge - Transform your investing
- Free API - 100 principles, 20 authors
- NPM Package -
npm install keeprule - PyPI Package -
pip install keeprule - Chrome Extension
- Discord Bot
- Embeddable Widget
- Master Guides - Buffett, Munger, Graham & more
- Free Ebook - 100 Investment Principles
- Email Course - 7-day Buffett course
- Infographics - Visual investing guides
- Investment Glossary - 100 terms every investor should know
- Annual Report - State of Investment Principles 2026
- SEO Blog - Deep-dive investing articles
- Platform Comparisons - KeepRule vs alternatives
Built by William Wang | All Tools