JustFax Online is a simple and convenient service that allows users to send faxes online without the need for an account or subscription. The service is available globally and offers secure payment processing. The pricing is straightforward, with a one-time fee for each fax sent. The service supports PDF files and has limitations on file size and page count. JustFax deletes fax files after they have been successfully sent. The service accepts major credit cards, PayPal, and various other payment methods. Users can reach out to support for any unanswered questions.