Open Source Java Libraries
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Java Libraries
View 74 business solutionsBrowse free open source Java Libraries and projects below. Use the toggles on the left to filter open source Java Libraries by OS, license, language, programming language, and project status.
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Enterprise-grade ITSM, for every businessFreshservice is an intuitive, AI-powered platform that helps IT, operations, and business teams deliver exceptional service without the usual complexity. Automate repetitive tasks, resolve issues faster, and provide seamless support across the organization. From managing incidents and assets to driving smarter decisions, Freshservice makes it easy to stay efficient and scale with confidence.
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iText®, a JAVA PDF library
PDF Library for Developers
iText is an open-source PDF library available for Java and .NET (C#). iText allows you to effortlessly generate and manipulate standards-compliant PDF documents with a powerful and feature-rich SDK. With iText, you can create archivable and accessible PDFs, split and merge documents, fill and flatten forms, digitally sign documents, and more. iText add-ons enable additional functionality, such as PDF creation from HTML templates, secure redaction, OCR, and much more. The latest versions of iText build on the success of previous versions and feature an improved document engine, high and low-level programming capabilities, and a more efficient modular structure. iText represents the next level for developers looking to leverage PDF in document workflows. The main project page for iText is now on GitHub, and all the latest releases, code samples, open source add-ons and tools, etc. can be found at https://github.com/itext/. -
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CSSBox
Pure Java HTML / CSS rendering engine
CSSBox is an (X)HTML/CSS rendering engine written in pure Java. Its primary purpose is to provide a complete information about the rendered page suitable for further processing. However, it also allows displaying the rendered document. -
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Java Marine API
NMEA 0183 library for Java
Java Marine API is an NMEA 0183 library for Java. For furher info and latest source code, see project's Github pages. http://github.com/ktuukkan/marine-api/ -
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openSCADA
openSCADA® is an open source SCADA system written in JAVA
openSCADA is an open source Supervisory Control And Data Acquisition System. It is platform independent and based on a modern system design that provides security and flexibility at the same time. openSCADA is flexible. It is not an out of the box solution, but a set of tools that can be combined in many different ways. It provides development libraries, interface applications, mass configuration tools, front-end and back-end applications. openSCADA is ready to rock. It is used 24/7 in several installations around this world. openSCADA is supported. So if you prefer a fully supported, out of the box instead of a “build it yourself” solution you can contact IBH SYSTEMS GmbH and let us do the job. If you like, you will still get the source code that was developed specially for you. openSCADA needs you. Writing source code, writing documentation, fixing bugs or providing fresh input. Anything is welcome. -
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Java Curses Library
JCurses, a java console windowing toolkit for Windows and Linux
The Java Curses Library (JCurses) is a library for developing text terminal based applications using Java programming language. It is implemented as a Windowing toolkit similar to AWT, but built upon the UNIX "curses" windowing system. -
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AL-IV
ALFOUR Programming language. Simple, safe, power, multi-platform.
A programming language AL-IV (ALFOUR) is a high-level imperative object oriented programming language with minimal introduction level, easy porting to any platform claiming a very high level of safety and stability, with a controllable level of code protection, high efficiency of an executable code, full independence from a target platform, minimal enter level. -
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silvertunnel.org is a project that provides an end-user browser, a Java library and additional Java security tools to easily access anonymity networks such as the Tor (torproject.org) network. Secure and easy to use. Tor4Java and Tor Browser. Attention: see project status on page https://sourceforge.net/p/silvertunnel/discussion/962278/thread/83dc2d02/#
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Trumba is an All-in-one Calendar Management and Event Registration platformPublish, promote and track your events more affordably and effectively—all in one place.
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Lnkdlst
Single sided linked list (kind of lib with test-code, C, C++ and java)
Use own (user) data section for each Linked-List-Element (LLEl) including a fix Identifier which is for search via basic Lnkdlst function (fast ID-part-search, e.g. to find all elements with a specific bit in the ID set). Main list-linkage-change functions: append, insert, delete. - Examples: use of flexible variable ArgList (OnePointerArg, optional valid if not NULL, Argument-Type by ID-Number is easy to get), key-value pairs, build FIFO{queue}/LIFO{stack}, auto-list with max. Element-Size and chronological order. Use malloc{slower-but-easy} or fix (static) memory. - OAList01: Object-Kind of a predefined pre-reserved List with X Elements (with constant user-data size), with secur modify functions and option to use locks (POSIX: mutex). Supporting a BusyList and a IdleList for easy build of e.g. a FIFO without need of much time for mem-allocation. - Release-Notes see uws-Lnkdlst-readme.txt in the tar.gz file(s) and in „Files“. -
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Java-Arduino Communication Library
Serial Communication between Java and Arduino made simple.
Serial Communication between Arduino and Java has never been simpler. A better alternative to the RXTX library, the JavaArduinoLibrary is an easy to use library with simple methods that allow you, the JAVA programmer, to read and write from the serial port. Seamless serial communication with the port of your choice. Consists of a class that extends the JComboBox to provide a list of all available ports for selection. Overloaded functions for serialWrite() and serialRead() allow multiple methods of communication. Overloaded constructors and getter and setter methods expand the use case to any scenario. **IMPORTANT**: please download and import both JARs in the files into your project. -
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Driver para impresor / controlador fiscal EPSON en JAVA. Utiliza JNI para comunicacion con puerto serie. Testeado en winxp, linux x86_64, win7 32 / 64 sobre TMU-220AF. solo rollo papel continuo (chicos)
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This project provides utilities to convert a JavaFX Scene to Swing Graphics2D orders. It it then simple to use it to convert to any format which takes a Graphics2D as input. The project comes with a PowerPoint, a SVG, and an EPS converter.
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ULS
A lexical analyzer generator that makes the class source code.
ULS is a class library for creating lexical analyzer from language specification file. It's provided as C/C++/C# and Java (class) libraries with a few of tools on Linux/Windows platform. -
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nmea4j
NMEA libary for java (protocol of GPS devices)
The aim of this project is to create a full utility suite for NMEA protocols (best known from GPS devices). First goal is a full implemenation of the NMEA 0183 protocol 3.0 (without proprietary extensions). The library provides parsers for NMEA sentences, gpsd-like network daemons and data generators for simulation and testing. This allows advanced sensor handling from cellphones/tablets/laptops with GPS up to vehicles/ships with NMEA sensors on board. -
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ejSerial
Serial connection Java library
Java library to send and receive data via Serial COM-Ports. This library is intended to provide an easy way to access the serial-port. Only a few lines of code are needed to Read or Write data via serial port. All Properties and Methods are inspired by the "SerialPort"-Class of the .NET Framework (System.IO.Ports.SerialPort) The benefit of this project is, that it needs only a few lines of code to implement, and a reduced CPU load. Static Methods are available to send/receive String values. For the complete JavaDoc: http://easymodbustcp.net/jserial/javadoc/index.html The library works with Windows 64Bit and Linux 64Bit and Linux 32 Bit ARM (Raspberry Pi) -
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An open source Java implementation to interpret and render Computer Graphics Metafile (CGM) graphics files.
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Boss Engine
8-bit Graphical API for Java
Boss Engine is a graphical API for writing low-resolution 8-bit color applications. It offers easy to use functions for handling graphics, basic i/o and more. Screen access is performed through virtual framebuffers that allow direct read/write access to indexed color screen data. API is coded entirely with native libraries. No third party libraries required. -
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DDT Library for Android
A library for applying Data Driven Testing on Android
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Glue Stick dependency injection framework is used for assembling and configuring Java applications from external bean definition and configuration files. There are several supported bean definition file formats, such as Groovy, JSON and Spring XML.
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Java library implementing simple management of application deployed in Google App Engine. Right now is supported only downloading and parsing of quota details. Which in fact the primary reason of existence of this library.
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JFontChooser
a font chooser component for java.
a font chooser component for java. provide selection for: 1. font (installed and un-installed) 2. font size 3. font style 4. text 5. text color CHECK OUT AND SUPPORT MY LATEST ANDROID PROJECTS IN HERE: https://play.google.com/store/apps/developer?id=Deepak+PK -
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JavaGimmicks
Utility classes, APIs and tools for Java
A set of helper and utility classes, APIs and tools for the Java Programming Language. For more details - pleas visit the project homepage. -
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SilverTunnel-NG
Java library for easy accessing Tor network.
SilverTunnel-NG is a Java library that implements and encapsulates all the complex network protocol stuff needed for anonymous communication over the Tor anonymity network. SilverTunnel-NG Netlib can be easily integrated in almost every existing and new Java application. The library requires Java 1.6/Java SE 6 or a newer version. This is a fork of silvertunnel (https://silvertunnel.org) Version (0.0.4) is deployed to maven. Since Version 0.0.4 SilverTunnel-NG also runs on Android. YourKit is kindly supporting this open source project with its full-featured Java Profiler. YourKit, LLC is the creator of innovative and intelligent tools for profiling Java and .NET applications. Take a look at YourKit's leading software products: http://www.yourkit.com/ . Automatic Builds and Tests are done with DEV@CloudBees : https://silvertunnel-ng.ci.cloudbees.com/ -
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Thimble
An asynchronous task execution library for Java
Thimble is a multi-thread Executor implementation that supports sequential and coalescing tasks. Sequential tasks are guaranteed to run in order, sequentially (but may run in different threads). Coalescing tasks are tasks where only the latest submitted task needs to be executed (effectively overwriting previously submitted tasks). Sequential and coalescing tasks are mutually exclusive.
