Open source software benefits professionals in all industries: government, Internet, business, education, and even health care. Expensive software and subscriptions for anti virus systems, supporting electronic medical records and even phone or e-mail communications can put on a strain on small clinics as well as larger hospitals. Open source tools are free, highly customizable, and secure enough to handle the sensitive data that medical professionals often work with. Read below for our list of the top 100 open source software tools that benefit health care professionals.