: Optimized data conversion reduces overhead in high-throughput applications.

: Simplified the removal of duplicates from lists while maintaining order, a task that often requires verbose Java Stream code. 2. Improved StrUtil (String Utilities)

Java developers have long relied on Hutool as the ultimate "Swiss Army Knife" for simplifying boilerplate code. True to its motto— A set of tools that keep Java sweet —Hutool abstracts complex JDK operations into elegant, fluid static methods.

: DesensitizedUtil now includes passport number desensitization, crucial for PII compliance. 3. Database and Concurrency Improvements

For modern Gradle builds, add this line to your build.gradle : implementation 'cn.hutool:hutool-all:5.8.39' Use code with caution. Feature Comparison: 5.x Patches vs. 6.x Major Release

Two under‑the‑hood improvements:

: HttpConfig now allows setting setIgnoreContentLength , enabling developers to choose to ignore the response contentLength header, which is useful when handling streaming or dynamic content. Why Upgrade to Hutool 5.8.39? Upgrading to Hutool 5.8.39 brings several benefits:

With JDK 21 LTS, virtual threads are production-ready. Hutool 39 new introduces ThreadUtil.newVirtualExecutor() :

We ran tests on a MacBook M2 Pro (16GB RAM) comparing Hutool 5.8.26 vs Hutool 6.0.0.M39:

This article was last updated in May 2026. Hutool is an Apache 2.0-licensed project maintained by the Dromara community.

No need to pull in heavy external frameworks just to make a simple API call. // Translate text using your preferred configured AI model String translatedText = AiUtil.translate( "Hello world, let's write some beautiful Java code!" );

Java developers, it’s time to simplify your "util" packages. The latest iterations of

Streamlined MD5, SHA-1, SHA-256, and BCrypt integration.

Working with collections just got friendlier. The new forEachIf method lets you iterate conditionally without breaking the flow:

Performance tuning takes center stage in the new version. Rather than competing blindly for micro-benchmarks, the engineering focus was centered on eliminating accidental heap allocations, garbage collection overhead, and synchronized blocking pain points. Modern Features Highlight:

Critics might argue that including Hutool is "wrapping a wrapper," and that developers should simply master the JDK. While valid, this view ignores the economic reality of software development. In a fast-paced business environment, using FileUtil.writeUtf8String(file, content) is significantly faster and less error-prone than writing the IO handling manually.