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Zing:®A better JVM

With Zing® you can ensure consistent Java execution, deliver a better user experience, meet required service delivery levels, and reduce operational and engineering costs. Zing is proven in a wide variety of use cases including online retail, advertising, capital markets, search, Cassandra, Kafka and many more.


Built with LLVM technology, the Falcon JIT compiler for Zing delivers deep optimization.


Azul has solved Java's Garbage Collection problem. Stop fighting Java GC pauses, stalls and jitter.

Warm-up? Solved.

With ReadyNow!®, Java applications start up fast and STAY fast.

Easy Adoption

Download Zing today and see the impact of a better JVM on your business.

Java applications run better with Zing

Java applications power global businesses. Organizations want better reliability and sustainable performance across their Java portfolio. With fielded uses that span online retail, advertising, capital markets and exchanges, telecom, utilities, retail banking, gaming and many others, Zing® proves its value around the planet every business day.

Zing Use Cases

The beauty of Zing is that it is “just Java”

Don’t throw away working code or retrain your developers. Don't even recompile. With Zing you access the full power of Java, Scala, and other JVM languages without changing your code or architecture.

Get the Zing data sheet

A better JVM means better application metrics

Zing is a JVM with "better behavior" enabling sustained performance, fast warmup and predictable latency without GC pauses. Zing is equally at home in your data center or on the Cloud.

Read the ROI Whitepaper

Benefits for your IT and DevOps teams

Choose Java 8, 7, or 6 -- or JDK 10 preview

Zing drops in like any other JDK. No changes needed to your Java code, JARs, frameworks, or programming style.

Pauseless operation

Fast allocations without Java garbage collection issues, plus up to 8TB live Java heap per JVM instance if needed

Simplify application readiness

Zing eliminates GC issues immediately. No need to keep tuning your JVM. Solve Java warm-up problems with ReadyNow.

Supports all major Linux distros

Choose Red Hat Enterprise Linux, SLES, Ubuntu, Debian, Amazon Linux, Oracle Linux, Red Hat MRG or CentOS

Fits your Production Environment

Zing runs on modern X86 servers, VMware or KVM, AWS, Azure or Google Clouds, plus Docker and LXC containers. Works with standard monitoring tools.

Excellent support team

24x7 Technical Support team is tightly integrated with Azul Engineering, driving faster problem resolution

Pricing that's simple

Zing® is priced on a term basis per server (physical or virtual). With per-server pricing, you don’t need to worry about core counts, memory size, or number of instances deployed per server. The single license annual subscription price for Zing (with support) is $3500 USD per server, with significantly lower prices for higher volumes and longer-term subscriptions. Please contact us to learn about the special pricing available for start-ups and companies with $25 million or less in annual revenue, and for ISVs and manufacturers looking to embed/integrate Zing with their products.

Are you an Open Source Developer? Renewable 1-year Free Zing subscriptions are available via our Zing Open Source Program. Start using Zing with your Open Source project today!

The ISVs listed below are part of a growing partner ecosystem crossing many industries and use cases.

Selected Zing Resources

Zing Data Sheet (English)

New Falcon JIT Compiler

Zing FAQ

Zing Java 10 Feature Preview

Zing for Open Source Developers

Zing System Requirements

Zing Data Sheet (Japanese)

ReadyNow! Data Sheet (English)

White Paper: Azul's C4 Collector (the technology behind Zing)

White Paper: Understanding Java Garbage Collection

Zing Benchmark: Apache Cassandra

On-demand Webinar: Winning With Java at Market Open

MigratoryData messaging benchmark

Zing Embedded Data Sheet

Azul Inspector Java Environment Tool

Zing Online Documentation

Azul Product Support Lifecycle

Check out the Zing FAQ or visit the Resources page for a complete list of Zing® solutions, white papers, infographics and more. Open Source Developer?  Check out our Open Source program.

Looking for Zing reviews by verified users? You can access them on the IT Central Station site.

© Azul Systems, Inc. 2018 All rights reserved.