What is GlassFish?

Eclipse GlassFish is an open-source application server designed to run and manage Java‑based applications efficiently. In simple terms, it’s a specialized software that helps Java applications function properly by handling security, performance, scalability, and resource management. Think of it as a foundation that ensures Java applications run smoothly and securely, whether they’re used for web platforms, financial systems, or enterprise-level software.

Originally developed by Oracle, GlassFish is now governed by the Eclipse Foundation and commercially supported by OmniFish. As a leading implementation of Jakarta EE (formerly Java EE), it follows widely adopted Java standards, ensuring compatibility, flexibility, and high performance for enterprise applications. GlassFish has traditionally been the first implementation to provide new versions of the Jakarta EE Platform, driving innovation in the Jakarta EE ecosystem.

The OmniFish company drives the development of the GlassFish open-source server and backs it by commercial support service. This makes GlassFish a production-ready platform for enterprise applications, delivering reliability and performance without vendor lock-in — all at a fraction of the cost of proprietary servers like Oracle WebLogic or IBM WebSphere.

Benefits of Using GlassFish

Companies Utilizing GlassFish

Several organizations across different industries have adopted GlassFish for their application development and deployment needs. Notable companies include:

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