Browse free open source Java Frameworks and projects below. Use the toggles on the left to filter open source Java Frameworks by OS, license, language, programming language, and project status.

  • Gen AI apps are built with MongoDB Atlas Icon
    Gen AI apps are built with MongoDB Atlas

    Build gen AI apps with an all-in-one modern database: MongoDB Atlas

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  • No-Nonsense Code-to-Cloud Security for Devs | Aikido Icon
    No-Nonsense Code-to-Cloud Security for Devs | Aikido

    Connect your GitHub, GitLab, Bitbucket, or Azure DevOps account to start scanning your repos for free.

    Aikido provides a unified security platform for developers, combining 12 powerful scans like SAST, DAST, and CSPM. AI-driven AutoFix and AutoTriage streamline vulnerability management, while runtime protection blocks attacks.
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  • 1
    Allows editing of any size file in hexadecimal, decimal and ASCII. A great tool that allows you to edit and analyze the contents for either the data or resource fork of any type of file. 68K, PPC and Carbon run on MacOS 7-9 and X.
    Leader badge
    Downloads: 248 This Week
    Last Update:
    See Project
  • 2
    IKVM.NET is a JVM for the Microsoft .NET Framework and Mono. It can both dynamically run Java classes and can be used to convert Java jars into .NET assemblies. It also includes a port of the OpenJDK class libraries to .NET.
    Downloads: 40 This Week
    Last Update:
    See Project
  • 3
    ZK - Simply Ajax and Mobile
    ZK is an open-source Java framework for building modern web and mobile applications. It enables developers to create rich, interactive UIs using only Java — no JavaScript required. With 200+ Ajax-powered components, event-driven architecture, and support for popular technologies like Spring, Java EE, and JSP/JSF, ZK makes it simple to deliver powerful and user-friendly web applications.
    Downloads: 17 This Week
    Last Update:
    See Project
  • 4
    SIGAR (System Information Gatherer and Reporter) is a cross-platform, cross-language library and command-line tool for accessing operating system and hardware level information in Java, Perl and .NET.
    Downloads: 33 This Week
    Last Update:
    See Project
  • Photo and Video Editing APIs and SDKs Icon
    Photo and Video Editing APIs and SDKs

    Trusted by 150 million+ creators and businesses globally

    Unlock Picsart's full editing suite by embedding our Editor SDK directly into your platform. Offer your users the power of a full design suite without leaving your site.
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  • 5
    Central Authentication Service (CAS)

    Central Authentication Service (CAS)

    Identity & Single Sign On for all earthlings and beyond

    Welcome to the home of the Apereo Central Authentication Service project, more commonly referred to as CAS. CAS is an enterprise multilingual single sign-on solution and identity provider for the web and attempts to be a comprehensive platform for your authentication and authorization needs. CAS is an open and well-documented authentication protocol. The primary implementation of the protocol is an open-source Java server component by the same name hosted here, with support for a plethora of additional authentication protocols and features. Monitor and track application and system behavior, statistics and metrics in real-time. Manage and review audits and logs centrally, and publish data to a variety of downstream systems. Manage and register client applications and services with specific authentication policies. Cross-platform client support (Java, .NET, PHP, Perl, Apache, etc).
    Downloads: 3 This Week
    Last Update:
    See Project
  • 6
    MMKV for Android

    MMKV for Android

    An efficient, small mobile key-value storage framework

    MMKV for Android is an efficient, small mobile key-value storage framework developed by WeChat. Works on Android, iOS, macOS, Windows, and POSIX. Efficient. MMKV uses mmap to keep memory synced with file, and protobuf to encode/decode values, making the most of Android to achieve best performance. MMKV supports concurrent read-read and read-write access between processes. Easy-to-use. You can use MMKV as you go. All changes are saved immediately, no sync, no apply calls needed. MMKV contains process locks, encode/decode helpers and mmap logics and nothing more. It's really tidy. MMKV adds about 50K per architecture on App size, and much less when zipped (apk). MMKV is published under the BSD 3-Clause license. Starting from v1.2.8, MMKV has been migrated to Maven Central. Older versions (<= v1.2.7) are still available on JCenter.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 7

    Oddjob

    Java Job Scheduling and Task Automation

    A flexible job scheduler for the distributed environment. Schedule a job on any server - from any server. Create dependencies and trigger alerts across the network. Monitor and control it all from your desktop.
    Downloads: 9 This Week
    Last Update:
    See Project
  • 8
    JPPF

    JPPF

    The open source grid computing solution

    JPPF makes it easy to parallelize computationally intensive tasks and execute them on a Grid.
    Downloads: 6 This Week
    Last Update:
    See Project
  • 9
    Discovery

    Discovery

    Nepxion Discovery is a solution for Spring Cloud

    Nepxion Discovery is a solution for Spring Cloud with blue green, gray, route, blacklist, limitation, circuit breaker, degrade, isolation, monitor, tracing, dye, failover, async agent. Only one or more services are upgraded at a time, the upgrade is completed and monitored and observed, and this process is performed continuously until all the old versions in the cluster are upgraded to the new version. In the process of stopping the old version, it is impossible to accurately calculate whether the old version has completed the work it is performing, and it needs to be judged by the business itself. Full-link custom gateways, service filters, and load balancing strategies trigger blue-green grayscale release. Full link local and remote, local and global non-parameterized rule-driven strategy. Full-link blue-green-gray release scheduling modeling and traffic detection.
    Downloads: 1 This Week
    Last Update:
    See Project
  • Deliver secure remote access with OpenVPN. Icon
    Deliver secure remote access with OpenVPN.

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  • 10
    Spring Security

    Spring Security

    Authentication and access-control framework

    Spring Security is a powerful and highly customizable authentication and access-control framework. It is the de-facto standard for securing Spring-based applications. Spring Security is a framework that focuses on providing both authentication and authorization to Java applications. Like all Spring projects, the real power of Spring Security is found in how easily it can be extended to meet custom requirements. Spring Security uses a Gradle-based build system. In the instructions, ./gradlew is invoked from the root of the source tree and serves as a cross-platform, self-contained bootstrap mechanism for the build. Be sure that your JAVA_HOME environment variable points to the jdk-11 folder extracted from the JDK download.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 11
    A software toolkit for using the EPCglobal Low Level Reader Protocol (LLRP) to communicate with conforming RFID readers.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 12
    xBridge - I2C/SMBus GUI

    xBridge - I2C/SMBus GUI

    USB Bridge for SMBus/I2C, GPIO, & Clock

    [Introduction] The xBridge-M01 product is a multifunctional USB bridge developed by Doidx. It can control and transmit SMBus/I2C, GPIO, Clock and other interfaces through USB. The product includes software and hardware. It has the characteristics of easy use and development. The core chip is CP2112 Graphical software and operating manual can be downloaded for free at http://xbridge-m01.doidx.com Provide the underlying Java API, http://xsmbus-m01.doidx.com , which can do simple testing and develop user-specific graphical interface products. xSmbus-xx, xBridge-xx do not need to install the driver according to the operating system in advance, nor select the COM port requirement, as long as they are in the Java environment, they can be plug and play. You can buy the product from: - China, https://shop255163877.taobao.com - Taiwan, you can buy on https://www.ruten.com.tw/user/index00.php?s=doidx
    Downloads: 8 This Week
    Last Update:
    See Project
  • 13
    Athos-RFID is a framework that aims to enable the development of distributed system to communicate heterogeneous RFID readers. The developers is abstracted by use services like serial communication, safe and distributed communication, event management.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 14
    Aperture is a Java framework for extracting and querying full-text content and metadata from various information systems (file systems, web sites, mail boxes, ...) and the file formats (documents, images, ...) occurring in these systems.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 15
    Raindrop is a Java based framework based on SEDA (Staged Event Driven Architecture) principles. It focuses on providing highly concurrent server side throughput by managing and controlling Thread usage and concurrency primitives.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 16
    QuickServer is an open source Java library/framework for quick creation of robust and multi-threaded, multi-client TCP server applications. With QuickServer one can just concentrate on just the application logic/protocol on hand.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 17
    MARF is a general cross-platform framework with a collection of algorithms for audio (voice, speech, and sound) and natural language text analysis and recognition along with sample applications (identification, NLP, etc.) of its use, implemented in Java.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 18
    The purpose of this project is to provide a convenient Java implementation for Future Technology Devices International Inc.'s (http://ftdichip.com) FTD2xx library. This library is used to access and control FTDI's USB to serial converter chips via USB.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 19
    Emutils

    Emutils

    Search and manage batches of D64/etc files.

    Emutils are a collection of utilities for dealing with files which are in formats most commonly used by Commodore 64 emulators (D64, D71, D81, etc). These include search tools, extractors, converters, archive tools, etc. especially for batch operations.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 20
    The main goal of this project is the development of an IFX Transaction Switch that handle particular devices like an ATM (J/XFS compliant), POS in the future, and other devices that speak a common language: IFX
    Downloads: 1 This Week
    Last Update:
    See Project
  • 21
    IdMUnit is an xUnit automated testing framework for Identity Management solutions.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 22
    The ProM Import Framework allows to extract process enactment event logs from a set of information systems. These can be exported in the MXML format, which is the standard event log data format for Process Mining analysis techniques.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 23

    Calimero

    A free Java KNX network library

    Calimero is a Java library for embedded/workstation-based KNX applications. The minimum JVM requirements are either Java ME/CDC 1.4 (Foundation Profile), or Java SE 8 (profile compact1). The library provides remote access and control, supporting KNXnet/IP, KNX IP, FT1.2, TP-UART, and KNX USB. Data exchange is supported on link layer using EMI 1/2 and cEMI, KNX data point types, application/management layer, as well as message buffering.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 24
    Dessy
    Dessy is a DEsktop Search and SYnchronization framework for mobile devices. It allows file search using content, metadata, and custom tags, and synchronization of results, and entire file system subtrees. It works on MIDP 2.0 handsets and Java 2 SE.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 25
    NO LONGER MAINTAINED, NO LONGER SUPPORTED Digital Preservation Software Platform (DPSP) consists of a number of open source products such as Xena and Digital Preservation Recorder. This installs and configures the complete platform for preserving digital records - just install and use!
    Downloads: 1 This Week
    Last Update:
    See Project
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