Here is the information about the programming languages used to develop OpenEMR, GNU Health, FreeMED, and OpenMRS:

1. OpenEMR

• Primary Programming Language: PHP
• Other Technologies:
  • MySQL/MariaDB for the database
  • JavaScript, HTML, CSS for the front-end
  • Apache or Nginx as the web server
• Description: OpenEMR is a web-based electronic health record (EHR) and practice management solution. It primarily uses PHP for backend development and is designed to run on Linux, Windows, and macOS systems.
• Website: OpenEMR

2. GNU Health

• Primary Programming Language: Python
• Other Technologies:
  • PostgreSQL for the database
  • Tryton framework for backend (a Python-based ERP framework)
• Description: GNU Health is a free, open-source health and hospital information system. It is built using Python and uses the Tryton framework for business logic and database management. It runs on Linux and other Unix-like systems.
• Website: GNU Health

3. FreeMED

• Primary Programming Language: PHP
• Other Technologies:
  • MySQL for the database
  • JavaScript, HTML, CSS for the front-end
  • Apache as the web server
• Description: FreeMED is a web-based electronic health records (EHR) system. It primarily uses PHP for the server-side code and MySQL for database management. It is suitable for small to medium-sized medical practices.
• Website: FreeMED

4. OpenMRS

• Primary Programming Language: Java
• Other Technologies:
  • MySQL, PostgreSQL, or H2 databases
  • Spring and Hibernate frameworks for backend logic
  • JavaScript, HTML, CSS for the front-end
  • Tomcat or Jetty as the web application server
• Description: OpenMRS is a modular open-source platform designed for healthcare systems, particularly in resource-constrained settings. It uses Java as the main programming language and leverages the Spring and Hibernate frameworks.
• Website: OpenMRS

Summary of Programming Languages Used:

• OpenEMR: PHP
• GNU Health: Python
• FreeMED: PHP
• OpenMRS: Java