mFax is an online fax service that works without a machine or phone line. Send and receive faxes from your phone, tablet, or computer anywhere. Upload files or snap photos with your camera. Add digital signatures and cover sheets. Track deliveries with real-time confirmations. The service is 256-bit encrypted and HIPAA compliant for secure document transmission. Free built-in tools let you merge PDFs, convert files between formats, and compress large documents. No long-term contracts or hidden fees. Over five million professionals in 180 countries trust mFax for reliable everyday faxing. Simple, fast, and secure.