The Convergence Has Begun

Excelsior JET 12 Introduces Profile-Guided Optimization

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We make high performance, spec-compliant Java™ SE implementations for desktop, server, and embedded environments, and provide consulting services.

Excelsior JET 12 To Introduce Profile-Guided Optimization
Excelsior JET 12, available now for early access, is set to introduce Profile-Guided Optimization, bridging the gap with the advanced JIT compilers, as well as many other novelties aimed squarely at improving the application performance.
Video: Nikita Lipsky Talks About Unity And Conflict of JIT And AOT Compilers @ Riga Dev Days 2017
Watch our Nikita Lipsky speaking about JIT and AOT compilers at Riga Dev Days 2017. Slides:
Excelsior JET Maven and Gradle Plugins Reached 1.0
It always feels special when a project matures to a level justifying the first increment of its major version number. Meet Excelsior JET Maven and Gradle plugins 1.0!

Excelsior JET
Certified Java SE JVM with a static (AOT) compiler and deployment toolkit

Accelerate and protect your desktop and server Java applications. Deploy without dependency on the JRE.

Use the most secure environment for running Eclipse RCP applications and Tomcat Web applications.

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Excelsior JET Embedded
High performance, small footprint Java SE Embedded solution

Leverage the most powerful version of the Java technology in your embedded devices with minimum overheads.

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Excelsior Delivery
Easy-to-use setup authoring tool for Windows

Create installation packages for your Windows applications, export to MSI or NSIS.

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Excelsior Installer FREE
Simple installer generator for Windows apps

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Family of Modula-2/Oberon-2 compilers and "via C" cross-compilers

Optimise your Modula-2/Oberon-2 programs for Windows and Linux/x86, or use a "via C" cross-compiler to target other platforms.

Download Now or learn more

Custom Compilers And Tools

From optimizing compilers to debuggers to profilers to complete custom-built IDEs, we create quality tools for all stages of software development and maintenance.


JVM Porting/Optimization

As an Oracle Java Licensee, we can help you Java-enable your hardware/OS, implement specific JSRs, or extend/tune a Java implementation for your specific application domain.


Legacy Code Solutions

Whether you need to translate your legacy sources from an obsolete programming language to a mainstream one, migrate existing applications to a new platform, or integrate them into a modern environment, we can supply custom tools that would automate most of the work.


Java Consulting

First-hand experience developing commercial software using Java SE/EE, JBoss, Tomcat, Spring, Hadoop, Lucene, Elasticsearch, MySQL, HTML5, and other modern technologies.


Algorithm-Intensive Applications Development

Speaking the language of scientists and engineers, we can help your problem domain experts convert their ideas to industrial-grade software.


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Dmitry Leskov
Director of Marketing
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