The best Java runtime for business-critical applications.
Zing® is ideal for systems that require predictable performance and pauseless operation.


Azul has solved Java's Garbage Collection problem. No more jitter, stalls and pauses.


Zing® defines grace under fire, handling traffic bursts and spikes.

ReadyNow!® Technology

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

Easy Adoption

Drop it in, set it up, start meeting your performance SLAs, and see better TCO.

Mission-critical Java server applications require Zing®

Java applications power global businesses. Organizations want better reliability and sustainable performance across their Java portfolio. We built Zing® purposefully for server applications carrying the heaviest loads running under tight responsiveness requirements. With fielded uses across capital markets and exchanges, e-commerce, telecom, electric utilities, retail banking, and gaming, 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 existing developers. Zing® lets you use Java in areas like low latency or big data often left to C or C++ and custom frameworks. With Zing you access the full power of Java, Scala, and dynamic 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 metrics enabling sustained performance, fast warmup and predictable latency without GC pauses. Zing® is a compliant implementation of Java Standard Edition 8, 7 and 6 and is equally at home in your data center or on the Cloud.

Read the ROI Whitepaper

Benefits for your IT and DevOps teams

100% Java SE compliant

No changes necessary to your Java code, JARs, frameworks, or programming style. Run on common Linux distros

Stellar memory behavior

Fast allocations with no garbage collection penalty, plus up to 2TB live Java heap per JVM instance

Simplify application readiness

Adaptive GC means far less time spent JVM tuning. Simplify warm up with ReadyNow! cumulative optimization

Most major Linux distros

Get down to sub-millisecond response, the sweet spot for low latency systems and reactive use cases

Fits your Production Operations

Bare metal, virtualized, AWS cloud, and SaaS architectures. Lightweight diagnostics, plus JMX endpoints

Unmatched support and ecosystem

24x7 technical support from practicing JVM engineers means faster problem resolution

Azul's ISV Partners certify or bundle Zing® with their solutions

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

Pricing that's simple

“Zing® is priced on a subscription 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 is $3500 USD per physical 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.”

Selected Zing Resources

Zing ®Data Sheet (English)

Zing® Data Sheet (Japanese)

ReadyNow!® Data Sheet (English)

ReadyNow!® data Sheet (Japanese)

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

Check out the Zing FAQ or visit the Resources page for a complete list of Zing® solutions, white papers, infographics and more.

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

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