PHP library for generating identicons as PNG and SVG.
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PHP library for generating highly recognizable identicons.

Sample identicons

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Jdenticon-php is a PHP port of the JavaScript library Jdenticon.

  • Renders identicons as PNG or SVG with no extension requirements.
  • Runs on PHP 5.3 and later.

Live demo

Getting started

Using Jdenticon is simple. Follow the steps below to integrate Jdenticon into your website.

1. Install the Jdenticon Composer package

The easiest way to get started using Jdenticon for PHP is to install the Jdenticon Composer package.

composer require jdenticon/jdenticon

2. Create a php file that will serve an icon

Now create a file that you call icon.php and place it in the root of your application. Add the following content to the file.


// Set max-age to a week to benefit from client caching (this is optional)
header('Cache-Control: max-age=604800');

// Parse query string parameters
$value = $_GET['value'];
$size = min(max(intval($_GET['size']), 20), 500);

// Render icon
$icon = new \Jdenticon\Identicon();

3. Use icon.php

Open up your favourite browser and navigate to http://localhost:PORT/icon.php?size=100&value=anything. An identicon should be displayed. Try to change the url parameters to see the difference in the generated icon.

Other resources

API documentation

For more usage examples and API documentation, please see:


Jdenticon-php is released under the MIT license.