Free & Embeddable

Interactive VPD Chart
for Growers

A detailed interactive VPD chart. See your exact VPD zone, get stage-specific advice — and embed it on your own site with one line of code.

Embed <script async src="https://growvpd.pro/widget.js"></script>
Live Preview

Try the Widget

This is exactly how the widget looks and works when embedded on your site. Fully interactive, responsive, and ready to use.

Live Demo
Quick Start

How to Embed

Add this single line of code anywhere in your HTML. The widget will render automatically.

HTML <script async src="https://growvpd.pro/widget.js"></script>

Paste this into your page's HTML where you want the calculator to appear. No registration, no API key, no dependencies.

Customize

Configuration Options

Use data attributes to customize the widget's behavior and appearance.

data-theme="dark"

Dark Mode

Switch the widget to a dark color scheme. Ideal for forums and sites with dark backgrounds.

<script async src="https://growvpd.pro/widget.js" data-theme="dark"></script>
data-target="#vpd"

Custom Container

Render the widget inside a specific element by providing its ID. This gives you full control over placement and layout.

<div id="vpd"></div> <script async src="https://growvpd.pro/widget.js" data-target="#vpd"></script>
Benefits

Why Add This Widget?

Give your visitors a genuinely useful tool, and keep them on your site longer.

Free Forever, No API Key

No sign-up, no authentication, no usage limits. Embed it and forget about it.

Adds Value to Your Content

Turn passive readers into engaged visitors with an interactive tool they will actually use and bookmark.

Beautiful, Responsive Design

Looks great on desktop, tablet, and mobile. Adapts to light and dark themes seamlessly.

Real-Time VPD Calculation

Instant VPD results with grow stage analysis. Covers seedling, vegetative, and flowering phases.

Lightweight & Fast

Minimal footprint. Loads asynchronously so it never slows down your page.

Also Available: Free API

Need more control? Our REST API gives you 18 endpoints for VPD, light/DLI, diagnostics, nutrients, equipment, and more. No API key required.

Explore API Documentation