1.opendataloader-project / opendataloader-pdf
PDF Parser for AI-ready data. Automate PDF accessibility. Open-source.
+2,207 stars
from 27,931 · score 7.70
Trending repositories
Ranked by Attention Score: stars gained over the last 90 complete days
57 repositories by Attention Score · Aug 5, 2026 – Nov 2, 2026 (UTC)
2.doocs / leetcode
🔥LeetCode solutions in any programming language | 多种编程语言实现 LeetCode、《剑指 Offer（第 2 版）》、《程序员面试金典（第 6 版）》题解
- algorithms
- cpp
- javascript
- golang
- csharp
- python3
- +2 more
+474 stars
from 36,273 · score 6.16
3.gyoogle / tech-interview-for-developer
👶🏻 신입 개발자 전공 지식 & 기술 면접 백과사전 📖
- interview
- developer
- tech
- computer-science
- algorithm
- it
- +9 more
+242 stars
from 17,417 · score 5.49
4.Col-E / Recaf
The modern Java bytecode editor
- java
- bytecode
- bytecode-engineering
- reverse-engineering
- jvm-bytecode
- decompile
- +8 more
+167 stars
from 7,285 · score 5.12
5.apache / fory
A blazingly fast multi-language serialization framework for idiomatic domain objects, schema IDL, and cross-language data exchange.
- cross-language
- fast
- jit
- multiple-language
- serialization
- zero-copy
- +14 more
+153 stars
from 4,424 · score 5.04
6.oracle / graal
GraalVM compiles applications into native executables that start instantly, scale fast, and use fewer compute resources 🚀
- java
- aot
- compiler
- graalvm
+150 stars
from 21,599 · score 5.02
7.Konloch / bytecode-viewer
A Java 8+ Jar & Android APK Reverse Engineering Suite (Decompiler, Editor, Debugger & More)
- java-decompiler
- apk
- java
- procyon
- cfr
- fernflower
- +14 more
+143 stars
from 15,558 · score 4.97
8.antlr / antlr4
ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or translating structured text or binary files.
- parsing
- parser-generator
- antlr
- antlr4
- java
- grammar
- +10 more
+108 stars
from 18,930 · score 4.69
9.apple / pkl
A configuration as code language with rich validation and tooling.
- pkl
- java
- kotlin
- config
- configuration
- data
- +10 more
+105 stars
from 11,450 · score 4.66
10.JetBrains / fernflower
Decompiler from Java bytecode to Java, used in IntelliJ IDEA.
- java
- decompiler
- reverse-engineering
+90 stars
from 4,343 · score 4.51
+73 stars
from 10,911 · score 4.30
12.konsoletyper / teavm
Compiles Java bytecode to JavaScript, WebAssembly and C
- aot
- java
- javascript
- jvm
- webassembly
+71 stars
from 3,072 · score 4.28
13.codenameone / CodenameOne
Open-source framework for native apps from one Java codebase, with a custom-rendered UI you control across iOS, Android, desktop, web, and watches.
+71 stars
from 1,851 · score 4.28
14.jhy / jsoup
jsoup: the Java HTML parser, built for HTML editing, cleaning, scraping, and XSS safety.
+60 stars
from 11,353 · score 4.11
15.remkop / picocli
Picocli is a modern framework for building powerful, user-friendly, GraalVM-enabled command line apps with ease. It supports colors, autocompletion, subcommands, and more. In 1 source file so apps can include as source & avoid adding a dependency. Written in Java, usable from Groovy, Kotlin, Scala, etc.
- java
- commandline
- parser
- ansi-colors
- annotations
- ansi
- +14 more
+60 stars
from 5,397 · score 4.11
16.javaparser / javaparser
Java 1-25 Parser and Abstract Syntax Tree for Java with advanced analysis functionalities.
- javaparser
- parser
- java
- javadoc
- code-generation
- code-generator
- +5 more
+55 stars
from 6,117 · score 4.03
+49 stars
from 255 · score 3.91
18.projectlombok / lombok
Very spicy additions to the Java programming language.
+45 stars
from 13,439 · score 3.83
19.JSQLParser / JSqlParser
JSqlParser parses an SQL statement and translate it into a hierarchy of Java classes. The generated hierarchy can be navigated using the Visitor Pattern
- sql
- java
- parser
- ast
- postgresql
- mysql
- +7 more
+36 stars
from 5,934 · score 3.61
20.commonmark / commonmark-java
Java library for parsing and rendering CommonMark (Markdown)
+32 stars
from 2,669 · score 3.50
21.SpongePowered / Mixin
Mixin is a trait/mixin and bytecode weaving framework for Java using ASM
+30 stars
from 1,705 · score 3.43
22.CalebFenton / simplify
Android virtual machine and deobfuscator
- deobfuscation
- java
- optimization
- android
- reverse-engineering
- malware-analysis
- +9 more
+29 stars
from 4,647 · score 3.40
23.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)
- findbugs
- java
- security-audit
- owasp
- taint-analysis
- code-analysis
- +5 more
+25 stars
from 2,428 · score 3.26
24.fabric8io / kubernetes-client
Java client for Kubernetes & OpenShift
- kubernetes
- openshift
- java-client
- kubernetes-client
- mocking-kubernetes
- kubernetes-model
- +4 more
+24 stars
from 3,661 · score 3.22
25.eclipse-openj9 / openj9
Eclipse OpenJ9: A Java Virtual Machine for OpenJDK that's optimized for small footprint, fast start-up, and high throughput. Builds on Eclipse OMR (https://github.com/eclipse/omr) and combines with the Extensions for OpenJDK for OpenJ9 repo.
- java
- jvm
- eclipse-openj9
- compiler
- garbage-collector
- gc
- +5 more
+23 stars
from 3,524 · score 3.18
26.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.
- code-analysis
- code-transformation
- metaprogramming
- code-generation
- abstract-syntax-tree
- ast
- +10 more
+22 stars
from 1,941 · score 3.14
27.skadistats / clarity
Comically fast Dota 2, CSGO, CS2 and Deadlock replay parser written in Java.
+22 stars
from 753 · score 3.14
28.dan2097 / opsin
Open Parser for Systematic IUPAC Nomenclature. Chemical name to structure conversion
+20 stars
from 226 · score 3.04
29.manifold-systems / manifold
Manifold is a Java compiler plugin, its features include Metaprogramming, Properties, Extension Methods, Operator Overloading, Templates, a Preprocessor, and more.
- java
- intellij
- json
- template-engine
- reflection-framework
- extension-methods
- +14 more
+18 stars
from 2,747 · score 2.94
30.chriswhocodes / jitwatch
Log analyser / visualiser for Java HotSpot JIT compiler. Inspect inlining decisions, hot methods, bytecode, and assembly. View results in the JavaFX user interface.
- jitwatch
- java
- javafx
- hotspot-jit-compiler
- hotspot
- log-analyser
- +2 more
+17 stars
from 3,296 · score 2.89
+12 stars
from 4,221 · score 2.56
32.MobiVM / robovm
Ahead of time compiler for JVM bytecode targetting iOS, Mac OSX and Linux
+11 stars
from 1,036 · score 2.48
33.vsch / flexmark-java
CommonMark/Markdown Java parser with source level AST. CommonMark 0.28, emulation of: pegdown, kramdown, markdown.pl, MultiMarkdown. With HTML to MD, MD to PDF, MD to DOCX conversion modules.
- commonmark
- pegdown
- java
- markdown-parser
- markdown-processor
- markdown-conversion
- +5 more
+10 stars
from 2,628 · score 2.40
+10 stars
from 2,284 · score 2.40
35.SquirrelJME / SquirrelJME
SquirrelJME is a Java ME 8 Virtual Machine for embedded and Internet of Things devices. It has the ultimate goal of being 99.9% compatible with the Java ME standard.
+10 stars
from 317 · score 2.40
+9 stars
from 693 · score 2.30
37.javapathfinder / jpf-core
JPF is an extensible software analysis framework for Java bytecode. jpf-core is the basis for all JPF projects; you always need to install it. It contains the basic VM and model checking infrastructure, and can be used to check for concurrency defects like deadlocks, and unhandled exceptions like NullPointerExceptions and AssertionErrors.
+7 stars
from 613 · score 2.08
38.PicnicSupermarket / error-prone-support
Error Prone extensions: extra bug checkers and a large battery of Refaster rules.
- java
- static-analysis
- abstract-syntax-tree
- ast
- automatic-refactoring
- code-quality
- +7 more
+7 stars
from 37 · score 2.08
39.google / android-classysharkArchived
Android and Java bytecode viewer
- dex
- classyshark
- jar
- android
- java
- apk
- +4 more
+6 stars
from 7,542 · score 1.95
40.authorjapps / zerocode
zerocode-tdd is a community-developed, free, open-source, outcome-driven automated testing framework for Data Pipelines, ETL, REST API, Kafka(Data Streams), Databases and Load scenarios. all defined in simple JSON or YAML — with zero coding.
+6 stars
from 1,010 · score 1.95
41.jphp-group / jphp
JPHP - an implementation of PHP on Java VM
+5 stars
from 1,707 · score 1.79
42.cincheo / jsweet
A Java to JavaScript transpiler.
- jsweet
- javascript-transpiler
- java
- typescript
- transpiler
- compiler
- +2 more
+4 stars
from 1,486 · score 1.61
43.sirthias / pegdown
A pure-Java Markdown processor based on a parboiled PEG parser supporting a number of extensions
+4 stars
from 1,288 · score 1.61
44.espertechinc / esper
Esper Complex Event Processing, Streaming SQL and Event Series Analysis
- cep
- complex-event-processing
- open-source
- compiler
- streaming-sql
- espertech
- +3 more
+4 stars
from 873 · score 1.61
45.jmapper-framework / jmapper-core
Elegance, high performance and robustness all in one java bean mapper
- annotations
- xml
- java
- jmapper
- mapper
- mapping
- +2 more
+2 stars
from 245 · score 1.10
46.truj / midica
A Music programming language. Translates source code into MIDI. Includes a player. Supports MIDI-Karaoke. Includes a MIDI analyzer.
+2 stars
from 133 · score 1.10
+2 stars
from 94 · score 1.10
+2 stars
from 59 · score 1.10
49.google / allocation-instrumenter
A Java agent that rewrites bytecode to instrument allocation sites
+1 stars
from 490 · score 0.69
50.arnaudroger / SimpleFlatMapper
Fast and Easy mapping from database and csv to POJO. A java micro ORM, lightweight alternative to iBatis and Hibernate. Fast Csv Parser and Csv Mapper
+1 stars
from 459 · score 0.69
51.neo4j / cypher-dsl
A Java DSL (Builder) for the Cypher Query Language
+1 stars
from 226 · score 0.69
52.cojen / Maker
Cojen/Maker is a lightweight, full-featured, low-level dynamic Java class generator designed for ease of use.
- java-bytecode
- invokedynamic
- java
- jvm-bytecode
- code-generation
- bytecode
- +1 more
+1 stars
from 72 · score 0.69
+1 stars
from 64 · score 0.69
54.marianobarrios / dregex
dregex is a Java library that implements a regular expression engine using deterministic finite automata (DFA). It supports some Perl-style features and yet retains linear matching time, and also offers set operations.
- scala
- dfa
- regular-expression
- regular-expression-engine
- regex
- java-library
+1 stars
from 55 · score 0.69
55.jeyben / fixedformat4j
Lightweight Java library for reading and writing fixed-width / fixed-length flat files using annotations on POJOs — for banking, payroll, EDI, mainframe, and batch integrations.
- annotations
- banking
- batch-processing
- edi
- fixed-format
- fixed-length
- +8 more
+1 stars
from 52 · score 0.69
56.sfkamath / jvm-hotpath
JVM runtime execution analysis - finds hot code paths by frequency, not CPU time
- asm
- bytecode
- code-coverage
- java
- java-agent
- jvm
- +3 more
+1 stars
from 10 · score 0.69
57.nbauma109 / transformer-api
Unified Java API for multiple decompilers (Fernflower, Vineflower, Procyon, CFR, JD-Core, JADX)
- bytecode
- cfr
- decompilation
- decompiler
- fernflower
- jadx
- +7 more
+1 stars
from 2 · score 0.69