Paypal Sandbox Test Tool IPN Simulator in Localhost

How to use Instant Payment Notification Simulator in local machine? What will be provided in IPN handler URL? I don't have access to our router.

Thanks

How do I enable IPN in sandbox PayPal?

Click the settings icon at the top of your PayPal account page and then click Account Settings. On the Notifications page, click the Update link for the Instant payment notifications item. Click Choose IPN Settings to specify your listener's URL and activate the listener.

How do I find my PayPal IPN history?

View IPN messages and details. Use the IPN History page on the PayPal website to view IPN messages sent to your listener URL from PayPal, and to request that messages be resent. Select the IPN messages to review. You can specify a date range, delivery status, and PayPal transaction ID.

You can test on localhost using ngrok.

Simply run ngrok locally then paste test url that ngrok gives you (something like http://1bc7d09d.ngrok.com/)

It provides a tunnel to your localhost.