262 Open Source Java Library Software Projects
Free and open source java library code projects including engines, APIs, generators, and tools.
Smack 2278 ⭐
A modular and portable open source XMPP client library written in Java for Android and Java (SE) VMs
Android Download Manager Pro 1566 ⭐
Android/Java download manager library help you to download files in parallel mechanism in some chunks.
Ihsanbal Logginginterceptor 1204 ⭐
An OkHttp interceptor which has pretty logger for request and response. +Mock support
Emv Nfc Paycard Enrollment 1097 ⭐
A Java library used to read and extract data from NFC EMV credit cards (Android/PCSC).
Elide 847 ⭐
Elide is a Java library that lets you stand up a GraphQL/JSON-API web service with minimal effort.
Ta4j Origins 359 ⭐
A Java library for technical analysis ***Not maintained anymore, kept for archival purposes, see #192***
AparAPI 394 ⭐
The New Official Aparapi: a framework for executing native Java and Scala code on the GPU.
Openmessaging Storage Dledger 497 ⭐
A raft-based java library for building high-available, high-durable, strong-consistent commitlog.
Lingua 456 ⭐
👄 The most accurate natural language detection library for Java and the JVM, suitable for long and short text alike
Jessefarebro Android Mqtt Service 244 ⭐
A simple MQTT Service that will keep running for the duration of your Android application using the Paho Java MQTT Client.
Bcrypt 271 ⭐
A Java standalone implementation of the bcrypt password hash function. Based on the Blowfish cipher it is the default password hash algorithm for OpenBSD and other systems including some Linux distributions. Includes a CLI Tool.
Autolink Java 163 ⭐
Java library to extract links (URLs, email addresses) from plain text; fast, small and smart
Tascalate Concurrent 166 ⭐
Implementation of blocking (IO-Bound) cancellable java.util.concurrent.CompletionStage and related extensions to java.util.concurrent.ExecutorService-s
Openkeepass 128 ⭐
[Deprecated] A java library for reading and writing KeePass databases. It is an intuitive java library that supports KeePass 2.x database files.
Katharsis Framework 131 ⭐
Katharsis adds powerful layer for RESTful endpoints providing implementenation of JSON:API standard
Taskchain 165 ⭐
TaskChain Control Flow framework. Helps facilitate running tasks on an application's "Main Thread" (such as a game), and tasks off the main (async).
Opacclient 138 ⭐
A Java client library and an Android app to access more than 1,000 public and scientific libraries from all over the world.
Image Comparison 184 ⭐
Published on Maven Central Java 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. Can be used for automation QA tests.
Androidrate 124 ⭐
AndroidRate is a library to help you promote your Android app by prompting users to rate the app after using it for a few days.
Kripton 116 ⭐
A Java/Kotlin library for Android platform, to manage bean's persistence in SQLite, SharedPreferences, JSON, XML, Properties, Yaml, CBOR.
Java Express 158 ⭐
🧪 HTTP Framework based on expressjs, no dependencies, simple usage. Can be used to quickly spin up an API or serve local files.
Tls Channel 124 ⭐
A Java library that implements a ByteChannel interface over SSLEngine, enabling easy-to-use (socket-like) TLS for Java applications.
Jmacaroons 103 ⭐
Pure Java implementation of Macaroons: Cookies with Contextual Caveats for Decentralized Authorization in the Cloud. Android ready. Online playground available.
Usbdrivedetector 106 ⭐
A Java library to get a list of all usb storage devices connected to the computer.
Jnacl 96 ⭐
Pure Java implementation of curve25519, salsa20, hsalsa20, xsalsa20 and poly1305 cryptographic primitives, along with a NaCl "Box" implementation
Kefirbb 85 ⭐
A flexible Java text processor. BB, BBCode, BB-code, HTML, Textile, Markdown, parser, translator, converter.
Night Config 120 ⭐
Powerful java configuration library for toml, yaml, hocon, json and in-memory configurations
Antisamy 106 ⭐
a library for performing fast, configurable cleansing of HTML coming from untrusted sources
Psychometrics 77 ⭐
A Java library for classical test theory, item response theory, factor analysis, and other measurement techniques. It provide tools commonly used in psychometrics and operational testing programs.
Automatalib 65 ⭐
A free, open-source Java library for modeling automata, graphs, and transition systems
Magnetictrackparser 56 ⭐
Java library that can parse magnetic stripes from a bank issued credit card.
Piri 53 ⭐
Piri is a lightweight annotation processing library that generates static factory methods for your Activities and Fragments.
Niumoo Javanotes 111 ⭐
🧱 「Java学习」一份涵盖大部分Java程序员所需要掌握的核心知识。JDK 源码分析 & Java 新特性 & Java 并发编程 & Java 虚拟机 & SpringBoot 2.x 系列
Tascalate Javaflow 60 ⭐
Continuations / CoRoutines for Java 1.6 - 17, build tools, CDI support. This project is based on completely re-worked Apache Jakarta Commons JavaFlow library.
Rssreader 80 ⭐
RSS reader is a simple Java library for extracting data from RSS and Atom feeds with Java stream API