In Magento 2, a large number of payment methods internally and externally. I will show you how to get all payment methods in Magento 2.

Magento 2 supports different types of payment methods. To check out, log into your Magento 2 Admin Panel. Navigate to STORES > Configuration > Sales > Payment Methods.

I will be showing two ways (Dependency Injection & Object Manager ) to get payment methods.

Use Dependency Injection:

Here is the code that you need to write in your Block class.

/**
 * Order Payment
 *
 * @var \Magento\Sales\Model\ResourceModel\Order\Payment\Collection
 */
protected $_orderPayment;
 
/**
 * Payment Helper Data
 *
 * @var \Magento\Payment\Helper\Data
 */
protected $_paymentHelper;
 
/**
 * Payment Model Config
 *
 * @var \Magento\Payment\Model\Config
 */
protected $_paymentConfig;
 
/**
 * @param \Magento\Backend\Block\Template\Context $context
 * @param \Magento\Sales\Model\ResourceModel\Order\Payment\Collection $orderPayment
 * @param \Magento\Payment\Helper\Data $paymentHelper
 * @param \Magento\Payment\Model\Config $paymentConfig
 * @param array $data
 */
public function __construct(
    \Magento\Backend\Block\Template\Context $context,
    \Magento\Sales\Model\ResourceModel\Order\Payment\Collection $orderPayment,
    \Magento\Payment\Helper\Data $paymentHelper,
    \Magento\Payment\Model\Config $paymentConfig,
    array $data = []
) {
    $this->_orderPayment = $orderPayment;
    $this->_paymentHelper = $paymentHelper;
    $this->_paymentConfig = $paymentConfig;
    parent::__construct($context, $data);
}
 
/**
 * Get all payment methods
 * 
 * @return array
 */ 
public function getAllPaymentMethods() 
{
    return $this->_paymentHelper->getPaymentMethods();
}
 
/**
 * Get key-value pair of all payment methods
 * key = method code & value = method name
 * 
 * @return array
 */ 
public function getAllPaymentMethodsList() 
{
    return $this->_paymentHelper->getPaymentMethodList();
}
 
/**
 * Get active/enabled payment methods
 * 
 * @return array
 */ 
public function getActivePaymentMethods() 
{
    return $this->_paymentConfig->getActiveMethods();
}
 
/**
 * Get payment methods that have been used for orders
 * 
 * @return array
 */ 
public function getUsedPaymentMethods() 
{
    $collection = $this->_orderPayment;
    $collection->getSelect()->group('method');
    $paymentMethods[] = array('value' => '', 'label' => 'Any');
    foreach ($collection as $col) { 
        $paymentMethods[] = array('value' => $col->getMethod(), 'label' => $col->getAdditionalInformation()['method_title']);            
    }        
    return $paymentMethods;
}

Use Object Manager:

If you want to get a list and information of all available payment methods on Magento programmatically you can use below mention code and you will get all payment method information.

$objectManager =  \Magento\Framework\App\ObjectManager::getInstance();        
 
$paymentHelper = $objectManager->get('Magento\Payment\Helper\Data');
$allPaymentMethods = $paymentHelper->getPaymentMethods();
$allPaymentMethodsArray = $paymentHelper->getPaymentMethodList();
 
var_dump($allPaymentMethodsArray);
var_dump($allPaymentMethods);
 
$paymentConfig = $objectManager->get('Magento\Payment\Model\Config');
$activePaymentMethods = $paymentConfig->getActiveMethods();
 
var_dump(array_keys($activePaymentMethods));
 
$orderPaymentCollection = $objectManager->get('\Magento\Sales\Model\ResourceModel\Order\Payment\Collection');
$orderPaymentCollection->getSelect()->group('method');
$paymentMethods[] = array('value' => '', 'label' => 'Any');
foreach ($orderPaymentCollection as $col) { 
    $paymentMethods[] = array('value' => $col->getMethod(), 'label' => $col->getAdditionalInformation()['method_title']);            
}
var_dump($paymentMethods);

Output:

getAllPaymentMethods():

Array
(
    [free] => Array
        (
            [active] => 1
            [model] => Magento\Payment\Model\Method\Free
            [order_status] => pending
            [title] => No Payment Information Required
            [allowspecific] => 0
            [sort_order] => 1
            [group] => offline
        )
 
    [substitution] => Array
        (
            [active] => 0
            [model] => Magento\Payment\Model\Method\Substitution
            [allowspecific] => 0
        )
 
    [vault] => Array
        (
            [debug] => 1
            [model] => Magento\Vault\Model\VaultPaymentInterface
        )
 
    [checkmo] => Array
        (
            [active] => 1
            [model] => Magento\OfflinePayments\Model\Checkmo
            [order_status] => pending
            [title] => Check / Money order
            [allowspecific] => 0
            [group] => offline
        )
 
    [purchaseorder] => Array
        (
            [active] => 0
            [model] => Magento\OfflinePayments\Model\Purchaseorder
            [order_status] => pending
            [title] => Purchase Order
            [allowspecific] => 0
            [group] => offline
        )
 
    [banktransfer] => Array
        (
            [active] => 0
            [model] => Magento\OfflinePayments\Model\Banktransfer
            [order_status] => pending
            [title] => Bank Transfer Payment
            [allowspecific] => 0
            [group] => offline
        )
 
    [cashondelivery] => Array
        (
            [active] => 0
            [model] => Magento\OfflinePayments\Model\Cashondelivery
            [order_status] => pending
            [title] => Cash On Delivery
            [allowspecific] => 0
            [group] => offline
        )

getAllPaymentMethodsList():

Array
(
    [banktransfer] => Bank Transfer Payment
    [cashondelivery] => Cash On Delivery
    [checkmo] => Check / Money order
    [free] => No Payment Information Required
    [purchaseorder] => Purchase Order
)

getUsedPaymentMethods():

Array
(
    [0] => Array
        (
            [value] => 
            [label] => Any
        )

    [1] => Array
        (
            [value] => cashondelivery
            [label] => Cash On Delivery
        )

    [2] => Array
        (
            [value] => checkmo
            [label] => Check / Money order
        )

)

I hope this instruction will be helpful for you.

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I’m here to help. Thank you!