Showing 585 open source projects for "core java"

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  • 1
    Scalatra

    Scalatra

    Tiny Scala high-performance, async web framework

    Scalatra is a lightweight, high-performance micro web framework written in Scala, inspired by the Ruby framework Sinatra. Its goal is to provide a minimal but expressive foundation for building web applications or REST APIs in Scala without the verbosity or steep learning curve of larger frameworks. It supports asynchronous request handling, routing, filters, content negotiation, and easy integration with templating, JSON libraries, and other web middleware. Being unopinionated, it lets...
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  • 2
    GeoTools, the Java GIS toolkit

    GeoTools, the Java GIS toolkit

    Toolkit for working with and mapping geospatial data

    GeoTools is an open source (LGPL) Java code library which provides standards compliant methods for the manipulation of geospatial data. GeoTools is an Open Source Geospatial Foundation project. The GeoTools library data structures are based on Open Geospatial Consortium (OGC) specifications.
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    Downloads: 498 This Week
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  • 3
    Gideros

    Gideros

    Gideros Release version

    ...Apart from supporting multiple platforms, Gideros also provides automatic screen scaling and automatic selection of proper image resolution, which makes supporting different screen resolutions, aspect ratios, and universal projects an easy task. You can easily extend the core with plugins. Import your existing (C, C++, Java or Obj-C) code, bind to Lua, and interpret them directly. Dozens of open-source plugins are already developed and ready to use: ads, in-app purchases, physics for 2d or 3d, Steam integration, and many more.
    Downloads: 1 This Week
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  • 4
    Downloads: 0 This Week
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  • 5
    Mifos - Open Source Core Banking

    Mifos - Open Source Core Banking

    Democratizing Financial Services Worldwide

    The Mifos Stack provides API-driven core banking infrastructure in the cloud. Apache Fineract (https://github.com/apache/fineract/) is the back-end core banking platform originated by the Mifos Initiative. Mifos X acts as the reference web and mobile apps for staff and customers providing an out of the box ready-to-deploy solution on top of Apache Fineract along with reporting, payments orchestration and other ancillary solutions. More than 20 million customers are reached by 400+...
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    Downloads: 74 This Week
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  • 6
    VirtualSatellite

    VirtualSatellite

    Virtual Satellite

    Virtual Satellite is a DLR open source software for model based systems engineering MBSE. One of the major features of Virtual Satellite is the modular data model, that can be easily customized to your personal needs. Today, there are already various different versions: - Virtual Satellite 4 - Core is the entry point to start developing and the basis for all other versions - Virtual Satellite 4 - CEF is a specialized version for the use in our Concurrent Engineering Facility - Virtual...
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    Downloads: 604 This Week
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  • 7
    jd-gui-duo

    jd-gui-duo

    A 2-in-1 JAVA decompiler based on JD-CORE v0 and v1 supporting 3rd par

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    Downloads: 61 This Week
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  • 8
    nmrshiftdb2
    nmrshiftdb2 is a NMR database (web database) for organic structures and their nuclear magnetic resonance (nmr) spectra. It allows for spectrum prediction (13C, 1H and other nuclei) as well as for searching spectra, structures and other properties. The nmrshiftdb2 software is open source, the data is published under an open content license. The core of nmrshitdb2 are fully assigned spectra with raw data and peak lists (we have pure peak lists as well). Those datasets are peer reviewed by a...
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    Downloads: 624 This Week
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  • 9

    Tibetan Unicode Keyboard

    Screen keyboards in MS Excel and in Java for typing Tibetan characters

    A Tibetan character is formed by stacking the middle (core) character with lower character stack(s) and upper stack. The tools in this package has been tested to work well in Windows 10 and above. The Java version is in the project titled Tibetan Java Keyboard. The MS Excel version does not work on Excel operating in MacOS. The Excel version uses Excel macros and VBA codes. One needs to Enable Macro to allow it to work.
    Downloads: 0 This Week
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  • 10
    Vector Pascal is a language targeted at SIMD multi-core instruction-sets such as the AVX and SSE2 or x86-64-v3. It has a SIMD compiler which supports parallel vector operations, loop unrolling, common sub expression removal etc. It is implemented in Java.
    Downloads: 11 This Week
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  • 11

    Prime number ( primenumbers )

    Benchmark for 50 000 000 prime numbers as single and multicore

    Simple source files and compiled JAR Java programs, for benchmark 50 000 000 cycle finding prime numbers. On Intel(R) Core(TM) i5-8600K CPU, Windows 10 20H2, i have 39 second on single core and 7,6 second on multi core. (PS: C++ multicore 6 second). Added C files for gcc compiler in Windows 10 and for Xcode C command line project in MacOS ( tested on Mac mini M2 with single core 16 to 25 sec and multicore 2,3 to 5 second by compiler -O switch). ...
    Downloads: 0 This Week
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  • 12
    ESignPDF

    ESignPDF

    Sign PDF with Digital Signature Certificate

    Brought to you by parvesh88 System Requirements 1. A Computer running Windows 7 Service Pack 1 or higher 2. Java Runtime Environment (JRE) 8 or higher if JRE is not installed on your Computer, then download and install from here JRE 8 for Windows x86 -> https://www.azul.com/core-post-download/?endpoint=zulu&uuid=55abea0c-2aa5-4316-aafb-e90847f6ee21 JRE 8 for Windows x64 -> https://www.azul.com/core-post-download/?endpoint=zulu&uuid=5a34da4a-1821-4c79-a57c-7fce38d102c2 JRE 8 for Mac OS -> https://www.azul.com/core-post-download/?...
    Downloads: 4 This Week
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  • 13
    Interview_Question_for_Beginner

    Interview_Question_for_Beginner

    Technical-Interview guidelines written for studying programming

    Interview_Question_for_Beginner is a technical-interview study repository created for people beginning careers in software development. It organizes common interview knowledge into structured computer-science, programming-language, and specialization sections. Core topics include data structures, networking, operating systems, databases, design patterns, algorithms, and general development concepts. Language-specific material covers Java, JavaScript, and Python. Separate sections address frontend development, iOS, and machine learning. The repository also collects real interview questions, reverse-interview suggestions for candidates, learning references, and community contributions through issues and pull requests.
    Downloads: 2 This Week
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  • 14
    grafx - Extensible Java Graphics Package

    grafx - Extensible Java Graphics Package

    Extensible Line-drawing & Polygon-filling Rasterization Libs for Java

    Line-drawing and polygon-filling rasterization algorithms in Java. Simple 2D package and more complex 3D package with Z-buffering. Texture mapping not supported at the moment. Color interpolation for lines, Gouraud shading for polygons fully supported. Floating point vertex coordinates, not integer. Pixel-level aliasing, not endpoint aliasing. Doesn't use Bresenham line style! Works with all Java versions. No external dependencies. Suitable for study in academic institutions,...
    Downloads: 0 This Week
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  • 15
    Rapid ERP Development

    Rapid ERP Development

    Great Open Source Plugins For iDempiere ERP Project

    I created a set of simple plugins to use iDempiere ERP with Unicenta POS, Android Scanner, Budgeting, Warehousing, Manufacturing, on-the-fly generators for App Dictionary, CRM Board and Charts, Kanban Board, Translation and more. Always complete with full technical documentation, blogs and movie tutorials. No information hiding. Its the open source sharing passion and i wanted to give it all back. Much of my present work is sponsored by SYSNOVA, the largest iDempiere conglomerate user and...
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    Downloads: 22 This Week
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  • 16
    Athena Java

    Athena Java

    Java Backend Knowledge Graph

    Athena is a Chinese-language Java backend knowledge map designed to help beginners build a broad and organized technical foundation. It collects articles, interview notes, tutorials, summaries, diagrams, and practical examples rather than providing one executable application. Core coverage includes Java fundamentals, collections, concurrency, the JVM, Spring, MyBatis, Hibernate, JDBC, MySQL, Redis, and message queues.
    Downloads: 4 This Week
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  • 17
    JEnterpriseServiceBus

    JEnterpriseServiceBus

    Java-based Open Source extensible ESB

    ...Extensibility is almost a key feature allowing any user to model and mostly generate plugins complementing core features as needed.
    Downloads: 0 This Week
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  • 18
    ASAF - Another Swing App Framework

    ASAF - Another Swing App Framework

    an OSGi-based Swing Application Framework

    Downloads: 1 This Week
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  • 19
    PI-Based Image Encoder / Converter

    PI-Based Image Encoder / Converter

    Python code able to convert / compress image to PI (3.14, π) Indexes

    Image processing tool that encodes pixel data as indices within the first 16.7 million digits of PI (π). Features high-performance Numba-accelerated search and a signature 'film-grain' aesthetic upon reconstruction. ZIP also include 16 MB file with 16,7 mil numbers of PI Benchmark(Single-Thread): Hardware & Environment Apple Silicon: Apple M2 (Mac mini/MacBook) x86_64 Platform: Intel Core Ultra 5 225F (Arrow Lake, 10 Cores) OS 1: Fedora 43 (GNOME) OS 2: Windows 11 Pro...
    Downloads: 0 This Week
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  • 20

    RecordEditor

    Editor for Fixed Width, Csv and Existing Xml files.

    The RecordEditor is a Data File editor for Flat Files (delimited and fixed field position). It supports Unix / PC / Legacy (e.g. Mainframe) file formats, both Text and binary files. The Editor uses a Record-Layout description to format the files. This is ideal for Fixed width (Text or Binary) files, Cobol Data Files, Mainframe files and complicated Csv files. Cobol Copybooks can be used to format Cobol Data files. As well as an editor, The following utilities are supplied * Formatted...
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    Downloads: 33 This Week
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  • 21
    mzMatch is a Java collection of small commandline tools specific for metabolomics MS data analysis. The tools are built on top of the PeakML core library, providing mass spectrometry specific functionality and access to the PeakML file format.
    Downloads: 1 This Week
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  • 22
    ROCS

    ROCS

    ROCS — Resilient Organization and Communication System

    ROCS is a free, serverless, TAK-inspired situational-awareness system for civilian teams (search and rescue, outdoor events, amateur-radio emergency groups). An Android app and a PC node share team positions, points of interest, messages and alerts over LoRa radio (Heltec WiFi LoRa 32 V3 or Seeed XIAO ESP32S3 + Wio-SX1262 used as a plain radio modem), local Wi-Fi multicast or public MQTT brokers. No account, no server, no plugin: scan the group QR code and you are in. All content is...
    Downloads: 12 This Week
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  • 23
    DB Explorer

    DB Explorer

    The modern AI‑first database client for developers DBAs and analyst

    DB Explorer is a free, cross-platform database query tool and schema explorer built for developers, DBAs, and data analysts. It provides a clean graphical interface for connecting to multiple database systems, writing and executing SQL, exploring schemas, monitoring database health, and generating SQL queries using AI — all from a single application. Supported Databases: PostgreSQL, MySQL, MariaDB, SQL Server, Oracle, SQLite, Amazon DynamoDB, and any JDBC-compatible database.
    Downloads: 20 This Week
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  • 24
    CoffeeWebServer

    CoffeeWebServer

    An http 1.1 server written in Java

    NIO HTTP/1.1 Web Server with support for multi-part forms, custom servlets, cookies, sessions, SSL, gzip and deflate encodings, pipelining, and more! Written in 100% Java with core server reliance only on the base jdk library.
    Downloads: 0 This Week
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  • 25
    LDPartEditor

    LDPartEditor

    Create and edit LDraw™ parts quick and easy.

    LDPartEditor is a free CAD tool for the creation of LDraw™ parts. Minimum System Requirements: - OpenGL 2.1 compatible Graphics Card - Operating System (64-bit): Windows [7 or newer], Mac OS X [>=14], Linux [e.g. Linux Mint >=22] - CPU: Multicore-Processor e.g. Intel Core 2 Duo or AMD Athlon II (>2.0Ghz) - RAM: 4 GB - Video-Memory: 1 GB - Free Disk Space: 150 MB Recommended Requirements: - OpenGL 3.3 compatible Graphics Card - Operating...
    Downloads: 3 This Week
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