Hey everyone! 👋
I'm excited to introduce BermudoGreen.js, a lightweight, completely free, and open-source Excel spreadsheet and formula calculation engine built for Vanilla JavaScript.
Many modern spreadsheet solutions for the web come with expensive licensing fees that can cost developers thousands of dollars. I wanted to create a simple, reliable, zero-dependency alternative that anyone can integrate into their web applications without worrying about enterprise-level pricing or restrictive licensing.
The goal is straightforward: make spreadsheet functionality accessible, affordable, and easy to use for students, indie builders, and new developers.
🚀 Key Features
- 🧮 Built-in Formula Engine: Full support for
SUM,AVERAGE,COUNT,COUNTA,COUNTIF,SUMIF,ROUND,ABS,IF,IFS,CONCAT,TEXTJOIN,VLOOKUP,HLOOKUP,INDEX,MATCH, and standard math(+ - * / ^ %). - 🪄 Formula Bar (
fx): Interactive formula bar with dynamic multi-color range highlighting and IntelliSense auto-complete tooltips. - 📊 Excel Layout: Automatic column letters (
A, B, C, D...), row numbers (1, 2, 3...), double-click auto-fit, and drag-to-resize columns. - 🔢 1-Click Number Formatting: Right-click column headers or cells to format as Currency (
$1,234.56), Percentage (12.5%), Integers, Decimals, or Dates. - 📋 Excel Clipboard Support: Seamless copy/paste (
Ctrl+C/Ctrl+V) directly to and from Microsoft Excel or Google Sheets. - ⏪ Global Undo / Redo: Full history management via
Ctrl+ZandCtrl+Y. - ⚡ Zero Dependencies: Pure Vanilla JavaScript, HTML5, and CSS. No heavy framework required.
💻 Quick Start
You can try the live demo or clone the repository directly from GitHub:
- GitHub Repository: https://github.com/alexjrb0226-a11y/BermudoGreen
- Live Demo: https://alexjrb0226-a11y.github.io/BermudoGreen/
Drop into your HTML:
html
<link rel="stylesheet" href="css/Custom.css">
<script src="js/bermudoGreen.js"></script>
<div id="spreadsheet"></div>
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