fucking-awesome-java
A curated list of awesome frameworks, libraries and software for the Java programming language. With repository stars⭐ and forks🍴
https://github.com/correia-jpv/fucking-awesome-java
Last synced: about 18 hours ago
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Resources
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Related Awesome Lists
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Podcasts and Screencasts
- The Java Posse - Discontinued as of 02/2015.
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Source
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Websites
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Projects
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Security
- Themis - Multi-platform high-level cryptographic library provides easy-to-use encryption for protecting sensitive data: secure messaging with forward secrecy, secure data storage (AES256GCM); suits for building end-to-end encrypted applications.
- DependencyCheck - Detects publicly disclosed vulnerabilities contained within a project's dependencies.
- Keywhiz - System for distributing and managing secrets.
- pac4j - Security engine.
- OpenAM - Access management solution that includes authentication, SSO, authorization, federation, entitlements and web services security.
- jjwt - JSON web token for Java and Android.
- Jwks RSA - JSON Web Key Set parser.
- SecurityBuilder - Fluent Builder API for JCA and JSSE classes and especially X.509 certificates.
- Tink - Provides a simple and misuse-proof API for common cryptographic tasks.
- jwt-java - Easily create and parse JSON Web Tokens and create customized JWT validators using a fluent API.
- Hdiv - Runtime application that repels application security risks included in the OWASP Top 10, including SQL injection, cross-site scripting, cross-site request forgery, data tampering, and brute force attacks.
- Password4j - User-friendly cryptographic library that supports Argon2, Bcrypt, Scrypt, PBKDF2 and various other cryptographic hash functions.
- Nbvcxz - Advanced password strength estimation.
- OTP-Java - One-time password generator library according to RFC 4226 (HOTP) and RFC 6238 (TOTP).
- Kalium - Binding for the Networking and Cryptography (NaCl) library.
- Ayza - High-level SSL configuration builder for configuring HTTP clients and servers with SSL/TLS.
- OACC - Provides permission-based authorization services.
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Code Analysis
- Infer - Modern static analysis tool for verifying the correctness of code.
- PMD - Source code analysis for finding bad coding practices.
- p3c - Provides Alibaba's coding guidelines for PMD, IDEA and Eclipse.
- Checkstyle - Static analysis of coding conventions and standards. (LGPL-2.1-or-later)
- Error Prone - Catches common programming mistakes as compile-time errors.
- NullAway - Eliminates NullPointerExceptions with low build-time overhead.
- SonarJava - Static analyzer for SonarQube & SonarLint. (LGPL-3.0-only)
- Spoon - Library for analyzing and transforming Java source code.
- Spotbugs - Static analysis of bytecode to find potential bugs. (LGPL-2.1-only)
- Error Prone Support - Error Prone extensions: extra bug checkers and a large battery of Refaster templates.
- RefactorFirst - Identifies and prioritizes God Classes and Highly Coupled classes.
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JSON
- Gson - Serializes objects to JSON and vice versa. Good performance with on-the-fly usage.
- Jackson - Similar to GSON, but offers performance gains if you need to instantiate the library more often.
- Moshi - Modern JSON library, less opinionated and uses built-in types like List and Map.
- Genson - Powerful and easy-to-use Java-to-JSON conversion library.
- fastjson - Very fast processor with no additional dependencies and full data binding.
- JsonPath - Extract data from JSON using XPATH-like syntax.
- DSL-JSON - JSON library with advanced compile time databinding.
- HikariJSON - High-performance JSON parser, 2x faster than Jackson.
- jackson-modules-java8 - Set of Jackson modules for Java 8 datatypes and features.
- Jackson-datatype-money - Open-source Jackson module to support JSON serialization and deserialization of JavaMoney data types.
- JSON-io - Convert Java to JSON/TOON and back. Supports complex object graphs, cyclic references, and TOON format for 40-50% LLM token savings.
- LoganSquare - JSON parsing and serializing library based on Jackson's streaming API. Outperforms GSON & Jackson's library.
- Yasson - Binding layer between classes and JSON documents similar to JAXB.
- Jolt - JSON to JSON transformation tool.
- JsonSurfer - Streaming JsonPath processor dedicated to processing big and complicated JSON data.
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Database
- Realm - Mobile database to run directly inside phones, tablets or wearables.
- requery - Modern, lightweight but powerful object mapping and SQL generator. Easily map to or create databases, or perform queries and updates from any Java-using platform.
- Querydsl - Typesafe unified queries.
- QuestDB - High-performance SQL database for time series. Supports InfluxDB line protocol, PostgreSQL wire protocol, and REST.
- Apache ShardingSphere - Distributed SQL transaction & query engine that allows for data sharding, scaling, encryption, and more on any database.
- HikariCP - High-performance JDBC connection pool.
- ArangoDB - ArangoDB Java driver.
- Chronicle Map - Efficient, in-memory (opt. persisted to disk), off-heap key-value store.
- eXist - NoSQL document database and application platform. (LGPL-2.1-only)
- FlexyPool - Brings metrics and failover strategies to the most common connection pooling solutions.
- Jest - Client for the Elasticsearch REST API.
- jetcd - Client library for etcd.
- Jinq - Typesafe database queries via symbolic execution of Java 8 Lambdas (on top of JPA or jOOQ).
- Leaf - Distributed ID generate service.
- MariaDB4j - Launcher for MariaDB that requires no installation or external dependencies.
- Redisson - Allows for distributed and scalable data structures on top of a Redis server.
- Speedment - Database access library that utilizes Java 8's Stream API for querying.
- Modality - Lightweight ORM with database reverse engineering features.
- QueryStream - Build JPA Criteria queries using a Stream-like API.
- Xodus - Highly concurrent transactional schema-less and ACID-compliant embedded database.
- OpenDJ - LDAPv3 compliant directory service, developed for the Java platform, providing a high performance, highly available, and secure store for the identities.
- Spring Data JPA MongoDB Expressions - Allows you to use MongoDB query language to query your relational database.
- CosId - Universal, flexible, high-performance distributed ID generator.
- Spring Data Dynamic Query - Unified dynamic query interface for Spring Data JPA, MongoDB, and Elasticsearch, enabling advanced JOIN(s), OR logic, scoped conditions, powerful projections and advanced features with zero boilerplate.
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Data Structures
- Tape - Lightning-fast, transactional, file-based FIFO.
- Protobuf - Google's data interchange format.
- Wire - Clean, lightweight protocol buffers.
- Big Queue - Fast and persistent queue based on memory-mapped files.
- HyperMinHash-java - Probabilistic data structure for computing union, intersection, and set cardinality in loglog space.
- Persistent Collection - Persistent and immutable analogue of the Java Collections Framework.
- RoaringBitmap - Fast and efficient compressed bitmap.
- SBE - Simple Binary Encoding, one of the fastest message formats around.
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Utility
- Guava - Collections, caching, primitives support, concurrency libraries, common annotations, string processing, I/O, and more.
- JavaVerbalExpressions - Library that helps with constructing difficult regular expressions.
- Arthas - Allows to troubleshoot production issues for applications without modifying code or restarting servers.
- Gephi - Cross-platform for visualizing and manipulating large graph networks. (GPL-3.0-only)
- Embulk - Bulk data loader that helps data transfer between various databases, storages, file formats, and cloud services.
- cactoos - Collection of object-oriented primitives.
- Dex - Java/JavaFX tool capable of powerful ETL and data visualization.
- minio-java - Provides simple APIs to access any Amazon S3-compatible object storage server.
- fswatch - Micro library to watch for directory file system changes, simplifying java.nio.file.WatchService.
- Underscore-java - Port of Underscore.js functions.
- Chocotea - Generates postman collection, environment and integration tests from java code.
- dregex - Regular expression engine that uses deterministic finite automata. It supports some Perl-style features and yet retains linear matching time, and also offers set operations.
- Javadoc Publisher - Generate Javadoc from your maven/gradle project and deploy it automatically on GitHub Page.
- CRaSH - Provides a shell into a JVM that's running CRaSH. Used by Spring Boot and others. (LGPL-2.1-or-later)
- JKScope - Java scope functions inspired by Kotlin.
- Semver4j - Lightweight library that helps you handling semantic versioning with different modes.
- bucket4j - Rate limiting library based on token-bucket algorithm.
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Imagery
- ZXing - Multi-format 1D/2D barcode image processing library.
- Imgscalr - Simple, efficient and hardware-accelerated image-scaling library implemented in pure Java 2D.
- Tess4J - JNA wrapper for Tesseract OCR API.
- Thumbnailator - High-quality thumbnail generation library.
- TwelveMonkeys - Collection of plugins that extend the number of supported image file formats.
- image-comparison - Library that compares 2 images with the same sizes and shows the differences visually by drawing rectangles. Some parts of the image can be excluded from the comparison.
- vips-ffm - Comprehensive bindings for libvips, using Java's "Foreign Function & Memory" API.
- Barcode-Lib4J - Generates QR Code, DataMatrix, and other 1D/2D barcodes as vector (PDF, EPS, SVG) and raster (PNG, BMP, JPG) images with DPI awareness, high precision, and CMYK color model support.
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Reactive libraries
- RxJava - Allows for composing asynchronous and event-based programs using observable sequences.
- Reactive Streams - Provides a standard for asynchronous stream processing with non-blocking backpressure.
- Reactor - A framework for building non-blocking applications on the JVM, providing support for reactive programming.
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IDE
- IntelliJ IDEA ), an application error tracking and performance analysis platform.
- Stagemonitor - Open-source performance monitoring and transaction tracing for JVM apps.
- Prometheus - Provides a multi-dimensional data model, DSL, autonomous server nodes and much more.
- JavaMelody - Performance monitoring and profiling.
- SPM  data models.
- Time4J - Advanced date and time library. (LGPL-2.1-only)
- Jollyday - Determines the holidays for a given year, country/name and eventually state/region.
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Introspection
- jOOR - jOOR stands for jOOR Object Oriented Reflection. It is a simple wrapper for the java.lang.reflect package.
- ClassGraph - ClassGraph (formerly FastClasspathScanner) is an uber-fast, ultra-lightweight, parallelized classpath scanner and module scanner for Java, Scala, Kotlin and other JVM languages.
- ReflectASM - ReflectASM is a very small Java library that provides high performance reflection by using code generation.
- Reflections - Reflections scans your classpath, indexes the metadata, allows you to query it on runtime and may save and collect that information for many modules within your project.
- Mirror - Mirror was created to bring light to a simple problem, usually named ReflectionUtil, which is on almost all projects that rely on reflection to do advanced tasks.
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Web Frameworks
- Blade - Lightweight, modular framework that aims to be elegant and simple.
- Erupt - Annotation-Driven Low-Code & JPA Visualization
- Takes - Opinionated web framework which is built around the concepts of True Object-Oriented Programming and immutability.
- Firefly - Asynchronous framework for rapid development of high-performance web application.
- Pippo - Small, highly modularized, Sinatra-like framework.
- WebForms Core - A technology for managing HTML tags from the server.
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Networking
- Dubbo - High-performance RPC framework.
- gRPC-java - RPC framework based on protobuf and HTTP/2.
- KryoNet - Provides a clean and simple API for efficient TCP and UDP client/server network communication using NIO and Kryo.
- sshj - Programmatically use SSH, SCP or SFTP.
- ServiceTalk - Framework built on Netty with APIs tailored to specific protocols and support for multiple programming paradigms.
- Comsat - Integrates standard Java web-related APIs with Quasar fibers and actors.
- urnlib - Represent, parse and encode URNs, as in RFC 2141. (GPL-3.0-only)
- Fluency - High throughput data ingestion logger to Fluentd and Fluent Bit.
- TLS Channel - Implements a ByteChannel interface over SSLEngine, enabling easy-to-use (socket-like) TLS.
- Drift - Easy-to-use, annotation-based library for creating Thrift clients and serializable types.
- Commons-networking - Client for server-sent events (SSE).
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Web Crawling
- webmagic - Scalable crawler with downloading, url management, content extraction and persistent.
- Crawler4j - Simple and lightweight web crawler.
- StormCrawler - SDK for building low-latency and scalable web crawlers.
- StormCrawler - SDK for building low-latency and scalable web crawlers.
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Native
- JNA - Work with native libraries without writing JNI. Also provides interfaces to common system libraries.
- JavaCPP - Provides efficient and easy access to native C++.
- native-lib-loader - Native library loader for extracting and loading native libraries from Java.
- Aparapi - Converts bytecode to OpenCL which allows execution on GPUs.
- JNR - Work with native libraries without writing JNI. Also provides interfaces to common system libraries. Same goals as JNA, but faster, and serves as the basis for the upcoming [Project Panama](http://openjdk.java.net/projects/panama).
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Natural Language Processing
- CogCompNLP - Provides common annotators for plain text input. (Research and Academic Use License)
- Hypherator - Java hyphenation library with iterator-like interface. Can be used out-of-the box - dictionaries for multiple languages are bundled in.
- LingPipe - Toolkit for tasks ranging from POS tagging to sentiment analysis.
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CLI
- Jansi - ANSI escape codes to format console output.
- JLine - Includes features from modern shells like completion or history.
- Text-IO - Aids the creation of full console-based applications.
- Lanterna - Easy console text-GUI library, similar to curses. (LGPL-3.0-only)
- Airline - Annotation-based framework for parsing Git-like command-line arguments.
- jbock - Reflectionless command line parser.
- Jexer - Advanced console (and Swing) text user interface (TUI) library, with mouse-draggable windows, built-in terminal window manager, and sixel image support. Looks like [Turbo Vision](https://en.wikipedia.org/wiki/Turbo_Vision).
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Compiler-compiler
- JavaCC - Parser generator that generates top-down parsers. Allows lexical state switching and permits extended BNF specifications.
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Constraint Satisfaction Problem Solver
- JaCoP - Includes an interface for the FlatZinc language, enabling it to execute MiniZinc models. (AGPL-3.0)
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Development
- Faux Pas - Library that simplifies error handling by circumventing the issue that none of the functional interfaces in the Java Runtime is allowed by default to throw checked exceptions.
- HotswapAgent - Unlimited runtime class and resource redefinition. (GPL-2.0-only)
- JavaParser - Parse, modify and generate Java code.
- JavaSymbolSolver - Symbol solver.
- Manifold - Re-energizes Java with powerful features like type-safe metaprogramming, structural typing and extension methods.
- SneakyThrow - Ignores checked exceptions without bytecode manipulation. Can also be used inside Java 8 stream operations.
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Distribution
- Capsule - Simple and powerful packaging and deployment. A fat JAR on steroids, or a "Docker for Java" that supports JVM-optimized containers.
- packr - Packs JARs, assets and the JVM for native distribution on Windows, Linux and macOS.
- really-executable-jars-maven-plugin - Maven plugin for making self-executing JARs.
- Artipie - Binary artifact management toolkit which hosts them on the file system or S3.
- Getdown - System for deploying Java applications to end-user computers and keeping them up to date. Developed as an alternative to Java Web Start.
- Boxfuse ).
- Orienteer - Open-source business application platform for rapid configuration/development of CRM, ERP, LMS and other applications.
- BCEL - Byte Code Engineering Library - analyze, create, and manipulate Java class files.
- BeanUtils - Easy-to-use wrappers around the Java reflection and introspection APIs.
- BeanUtils2 - Redesign of Commons BeanUtils.
- BSF - Bean Scripting Framework - interface to scripting languages, including JSR-223.
- Chain - Chain of Responsibility pattern implementation.
- ClassScan - Find Class interfaces, methods, fields, and annotations without loading.
- CLI - Command-line arguments parser.
- CLI2 - Redesign of Commons CLI.
- Codec - General encoding/decoding algorithms, e.g. phonetic, base64 or URL.
- Compress - Defines an API for working with tar, zip and bzip2 files.
- Configuration - Reading of configuration/preferences files in various formats.
- Convert - Commons-Convert aims to provide a single library dedicated to the task of converting an object of one type to another.
- Daemon - Alternative invocation mechanism for unix-daemon-like java code.
- DBCP - Database connection pooling services.
- DbUtils - JDBC helper library.
- Digester - XML-to-Java-object mapping utility.
- Exec - API for dealing with external process execution and environment management in Java.
- FileUpload - File upload capability for your servlets and web applications.
- Finder - Java library inspired by the UNIX find command.
- Flatfile - Java library for working with flat data structures.
- Functor - Function that can be manipulated as an object, or an object representing a single, generic function.
- Graph - General purpose graph APIs and algorithms.
- I18n - Adds the feature of localized message bundles that consist of one or many localized texts that belong together.
- Id - Id is a component used to generate identifiers.
- Imaging - Image library.
- Javaflow - Continuation implementation to capture the state of the application.
- JCI - Java Compiler Interface.
- JCS - Java Caching System.
- Jelly - XML based scripting and processing engine.
- Jexl - Expression language which extends the Expression Language of the JSTL.
- JNet - JNet allows to use dynamically register url stream handlers through the java.net API.
- JXPath - Utilities for manipulating Java Beans using the XPath syntax.
- Math - Lightweight, self-contained mathematics and statistics components.
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