domclic

<p>Effortless QR Code Generator is a WordPress plugin that allows you to create QR codes using a simple shortcode. It supports both client-side JavaScript rendering and server-side PHP rendering.</p>
<h4>Features</h4>
<ul>
<li><strong>Simple shortcode</strong>: Use <code>[effortless_qrcode url="https://example.com"]</code> to generate QR codes</li>
<li><strong>Dual rendering modes</strong>: Client-side (JavaScript) or server-side (PHP/PNG)</li>
<li><strong>Developer API</strong>: Generate QR codes programmatically from your plugins/themes</li>
<li><strong>Customizable size</strong>: Control QR code dimensions (100-500 pixels)</li>
<li><strong>Custom colors</strong>: Set dark and light colors for the QR code</li>
<li><strong>Error correction levels</strong>: Choose L, M, Q, or H</li>
<li><strong>Cached PNG images</strong>: Server-rendered QR codes are cached in the uploads folder</li>
<li><strong>Responsive design</strong>: QR codes adapt to different screen sizes</li>
<li><strong>No external dependencies</strong>: All code is bundled locally</li>
<li><strong>Privacy-friendly</strong>: No data sent to external services</li>
<li><strong>Accessibility ready</strong>: Proper alt text support</li>
<li><strong>Performance optimized</strong>: Scripts load only when needed</li>
</ul>
<h4>Shortcode Parameters</h4>
<ul>
<li><code>url</code> – The URL to encode (required)</li>
<li><code>size</code> – Size in pixels (default: 150, min: 100, max: 500)</li>
<li><code>color_dark</code> – Dark color in hex format (default: #000000)</li>
<li><code>color_light</code> – Light color in hex format (default: #ffffff)</li>
<li><code>render</code> – Rendering mode: “client” or “server” (default: client)</li>
<li><code>ecc</code> – Error correction level: L, M, Q, H (default: M)</li>
<li><code>alt</code> – Alt text for accessibility (server rendering only)</li>
<li><code>class</code> – Additional CSS class (server rendering only)</li>
<li><code>data</code> – Arbitrary data to encode (plain text, WiFi, vCard, etc.). When set, overrides <code>url</code> and disables <code>link</code></li>
<li><code>link</code> – Wrap QR code in a clickable link: “yes” or “no” (default: no). Only works with URL content, ignored when <code>data</code> is used</li>
<li><code>title</code> – Tooltip text shown on hover</li>
<li><code>target</code> – Link target attribute: “_blank”, “_self”, etc. (default: _blank)</li>
</ul>
<h4>Usage Examples</h4>
<p>Basic usage (client-side):<br />
    [effortless_qrcode url=”https://example.com”]</p>
<p>Server-side rendering:<br />
    [effortless_qrcode url=”https://example.com” render=”server”]</p>
<p>With custom size and colors:<br />
    [effortless_qrcode url=”https://example.com” size=”200″ color_dark=”#0073aa”]</p>
<p>Server-side with high error correction:<br />
    [effortless_qrcode url=”https://example.com” render=”server” ecc=”H” alt=”Scan me”]</p>
<h4>PHP API for Developers</h4>
<p>Third-party plugins and themes can generate QR codes programmatically using the <code>Effortless_QRCode_Native</code> class.</p>
<p><strong>Basic Usage:</strong></p>
<pre><code><?php
// Make sure the plugin is active
if ( class_exists( 'Effortless_QRCode_Native' ) ) {

    // Generate a QR code PNG
    $result = Effortless_QRCode_Native::generate_png( 'https://example.com' );

    if ( $result ) {
        echo '<img src="' . esc_url( $result['url'] ) . '" alt="QR Code">';
    }
}
?>
</code></pre>
<p><strong>With Custom Options:</strong></p>
<pre><code><?php
$result = Effortless_QRCode_Native::generate_png(
    'https://example.com',  // Data to encode (required)
    200,                    // Size in pixels (default: 150)
    '#0073aa',              // Dark color (default: #000000)
    '#ffffff',              // Light color (default: #ffffff)
    'H',                    // ECC level: L, M, Q, H (default: M)
    4                       // Margin in modules (default: 4)
);

if ( $result ) {
    // $result['url']  - Public URL to the PNG image
    // $result['path'] - Server filesystem path to the PNG file
    // $result['debug'] - Debug information string
}
?>
</code></pre>
<p><strong>Display in a Template:</strong></p>
<pre><code><?php
if ( class_exists( 'Effortless_QRCode_Native' ) ) {
    $result = Effortless_QRCode_Native::generate_png( get_permalink() );

    if ( $result ) : ?>
        <div class="my-qr-code">
            <img src="<?php echo esc_url( $result['url'] ); ?>"
                 alt="<?php esc_attr_e( 'Scan to visit this page', 'my-theme' ); ?>"
                 width="150"
                 height="150">
        </div>
    <?php endif;
}
?>
</code></pre>
<h4>API Reference</h4>
<p><strong>Effortless_QRCode_Native::generate_png( $data, $size, $color_dark, $color_light, $ecc, $margin )</strong></p>
<p>Generates a QR code PNG image and saves it to the WordPress uploads folder.</p>
<p><strong>Parameters:</strong></p>
<ul>
<li><code>$data</code> (string) – Required. The data to encode (URL, text, etc.)</li>
<li><code>$size</code> (int) – Optional. Image size in pixels. Default: 150</li>
<li><code>$color_dark</code> (string) – Optional. Hex color for dark modules. Default: ‘#000000’</li>
<li><code>$color_light</code> (string) – Optional. Hex color for light modules. Default: ‘#ffffff’</li>
<li><code>$ecc</code> (string) – Optional. Error correction level (L, M, Q, H). Default: ‘M’</li>
<li><code>$margin</code> (int) – Optional. Quiet zone margin in modules. Default: 4</li>
</ul>
<p><strong>Returns:</strong></p>
<p>Array on success with keys:<br />
* <code>url</code> – Public URL to the generated PNG image<br />
* <code>path</code> – Server filesystem path to the PNG file<br />
* <code>debug</code> – Debug information string</p>
<p>Returns <code>false</code> on failure.</p>
<p><strong>Notes:</strong></p>
<ul>
<li>Images are cached based on all parameters (same input = same file)</li>
<li>Files are stored in <code>wp-content/uploads/effortless-qrcodes/</code></li>
<li>Requires GD library for PNG generation</li>
</ul>
<h4>Error Correction Levels</h4>
<ul>
<li><strong>L</strong> – 7% recovery capacity (smallest QR code)</li>
<li><strong>M</strong> – 15% recovery capacity (default, good balance)</li>
<li><strong>Q</strong> – 25% recovery capacity</li>
<li><strong>H</strong> – 30% recovery capacity (largest QR code, best for print)</li>
</ul>
<p>Higher error correction allows the QR code to be read even if partially damaged or obscured.</p>
<h4>Privacy</h4>
<p>This plugin does not collect, store, or transmit any personal data. QR codes are generated locally (either in the browser or on your server).</p>
<h4>Requirements</h4>
<ul>
<li><strong>PHP 7.4+</strong> with GD library (for server-side PNG generation)</li>
<li><strong>WordPress 5.0+</strong></li>
<li><strong>JavaScript enabled</strong> (for client-side rendering only)</li>
</ul>


EffortLess QR Code Generator

Generate QR codes easily with a simple shortcode. Supports client-side (JavaScript) and server-side (PHP/PNG) rendering with a developer API.

Sayan Datta

Gautam Garg

knitpay

<p>This Plugin enables WooCommerce shop owners to get direct and instant payments through UPI apps like BHIM, GooglePay, WhatsApp, Paytm, PhonePe or any banking UPI app to save payment gateway charges in India.</p>
<h3>UPI QR Code Payment Gateway for WooCommerce</h3>
<p>UPI (Unified Payments Interface) is a payment standard owned by National Payment Corporation of India, a government owned instant payment solution. UPI works 24×7 and is free subject to prevalent government guidelines.</p>
<p>When this plugin is installed, a customer will see UPI as a payment option. When customer chooses it, it will open a page which shows the UPI QR Code containing the payment details and in mobile it will also show a button which takes customer to the list of installed UPI mobile applications. Customer can choose an app and pay the required amount.</p>
<p>Like UPI QR Code Payment Gateway for WooCommerce plugin? Consider leaving a <a href="https://wordpress.org/support/plugin/upi-qr-code-payment-for-woocommerce/reviews/?rate=5#new-post" rel="ugc">5 star review</a>.</p>
<h4>Benefits</h4>
<ul>
<li>Simple & Easy to Setup.</li>
<li>Avoid Payment Gateway Fees.</li>
<li>Instant Settlement.</li>
<li>Direct Payment.</li>
<li>100% Success Rate.</li>
<li>Send QR Code link to Customer.</li>
<li>24×7 Availability.</li>
<li>Multisite Network Supported.</li>
<li>No Renewal/Subscription.</li>
<li>No KYC, No GST number Required.</li>
<li>No Hidden or Additional Charges.</li>
<li>Instant Money Settlement.</li>
</ul>
<h4>Detailed Steps</h4>
<ul>
<li>Customer will see UPI as a payment option in WooCommerce Checkout page.</li>
<li>When customer chooses it, it will open a page which shows the UPI QR Code containing the payment details and in mobile it will also show a button which takes customer to the list of installed UPI mobile applications.</li>
<li>Customer can scan the QR Code using any UPI app or choose an app from mobile to pay the required order amount.</li>
<li>After successful payment, a 12-digits Transaction/UTR ID will appear in the Customer’s UPI app from which he/she made the payment.</li>
<li>After that, customer needs to enter that 12 digit transaction number to the “Enter the Transaction ID” text box and click submit.</li>
<li>After successful submission of the ID, the order will be marked as on hold (customizable).</li>
<li>Now, Merchant gets a notification on the mobile on his/her UPI app (Google Pay/PhonePe/BHIM/Paytm etc.)</li>
<li>Merchant opens notification, sees a payment made. Sees the “Order ID”.</li>
<li>Merchant opens the WooCommerce Dashboard, checks the “pending orders” for this Order ID.</li>
<li>Checks the order details and processes it (shipping etc) and makes the orders as “processing” or “completed”.</li>
</ul>
<h4>Compatibility</h4>
<ul>
<li>This plugin is fully compatible with WordPress Version 4.6 and beyond and also compatible with any WordPress theme.</li>
</ul>
<h4>Support</h4>
<ul>
<li>Community support via the <a href="https://wordpress.org/support/plugin/upi-qr-code-payment-for-woocommerce" rel="ugc">support forums</a> at WordPress.org.</li>
</ul>
<h4>Contribute</h4>
<ul>
<li>Active development of this plugin is handled <a href="https://github.com/knit-pay/upi-qr-code-payment-for-woocommerce" rel="nofollow ugc">on GitHub</a>.</li>
<li>Feel free to <a href="https://github.com/knit-pay/upi-qr-code-payment-for-woocommerce" rel="nofollow ugc">fork the project on GitHub</a> and submit your contributions via pull request.</li>
</ul>


UPI QR Code Payment Gateway for WooCommerce

This Plugin enables WooCommerce shop owners to get direct and instant payments through UPI apps like BHIM, GooglePay, PhonePe or any banking UPI app.

EffortLess QR Code Generator vs UPI QR Code Payment Gateway for WooCommerce