1.SonarSource / sonarqube
Continuous Inspection
+103 stars
from 11,033 · score 4.64
Trending repositories
Ranked by Attention Score: stars gained over the last 30 complete days
13 repositories by Attention Score · Oct 4, 2026 – Nov 2, 2026 (UTC)
2.Col-E / Recaf
The modern Java bytecode editor
+55 stars
from 7,397 · score 4.03
3.Konloch / bytecode-viewer
A Java 8+ Jar & Android APK Reverse Engineering Suite (Decompiler, Editor, Debugger & More)
+49 stars
from 15,652 · score 3.91
4.checkstyle / checkstyle
Checkstyle is a development tool to help programmers write Java code that adheres to a coding standard. By default it supports the Google Java Style Guide and Sun Code Conventions, but is highly configurable. It can be invoked with an ANT task and a command line program.
+45 stars
from 9,582 · score 3.83
5.pmd / pmd
An extensible multilanguage static code analyzer.
+29 stars
from 5,494 · score 3.40
6.google / error-prone
Catch common Java mistakes as compile-time errors
+27 stars
from 7,239 · score 3.33
7.spotbugs / spotbugs
SpotBugs is FindBugs' successor. A tool for static analysis to look for bugs in Java code.
+18 stars
from 3,947 · score 2.94
8.uber / NullAway
A tool to help eliminate NullPointerExceptions (NPEs) in your Java code with low build-time overhead
+16 stars
from 4,111 · score 2.83
9.INRIA / spoon
Spoon is a metaprogramming library to analyze and transform Java source code. :spoon: is made with :heart:, :beers: and :sparkles:. It parses source files to build a well-designed AST with powerful analysis and transformation API.
+8 stars
from 1,955 · score 2.20
10.find-sec-bugs / find-sec-bugs
The SpotBugs plugin for security audits of Java web applications and Android applications. (Also work with Kotlin, Groovy and Scala projects)
+7 stars
from 2,446 · score 2.08
11.PicnicSupermarket / error-prone-support
Error Prone extensions: extra bug checkers and a large battery of Refaster rules.
+3 stars
from 41 · score 1.39
12.gaul / modernizer-maven-plugin
Detect uses of legacy Java APIs
+2 stars
from 393 · score 1.10
13.refactorfirst / RefactorFirst
Identifies and prioritizes Class and Package Cycles and Anti-pattens in Java & Kotlin codebases you should refactor first.
+1 stars
from 547 · score 0.69