Showing 4423 open source projects for "java open source"

View related business solutions
  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
    Try free now
  • Automate contact and company data extraction Icon
    Automate contact and company data extraction

    Build lead generation pipelines that pull emails, phone numbers, and company details from directories, maps, social platforms. Full API access.

    Generate leads at scale without building or maintaining scrapers. Use 10,000+ ready-made tools that handle authentication, pagination, and anti-bot protection. Pull data from business directories, social profiles, and public sources, then export to your CRM or database via API. Schedule recurring extractions, enrich existing datasets, and integrate with your workflows.
    Explore Apify Store
  • 1
    OneFile

    OneFile

    Curates delightful open-source projects

    OneFile curates delightful open-source projects that each consist of a single file, highlighting how much you can learn from compact, self-contained code. The collection spans tiny games, utilities, servers, interpreters, and teaching demos where the entire idea fits in one readable source. This “one file” constraint makes every example approachable—you can open it, grasp the full control flow, and experiment without navigating a large codebase.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 2
    jstraining

    jstraining

    Training materials designed to teach JavaScript

    jstraining is a curated set of training materials designed to teach JavaScript with a practical, hands-on approach. It organizes slides, exercises, and example projects into a progressive curriculum that moves from language fundamentals to tooling and best practices. Learners write code early and often, reinforcing concepts like functions, objects, modules, and asynchronous control flow. The repository encourages modern syntax and patterns while keeping examples small enough to digest in a...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 3
    SYSADMIN Test Questions

    SYSADMIN Test Questions

    A collection of Linux Sysadmin Test Questions and Answers

    This repository is a large, curated set of Linux/*nix system administration questions and answers organized as an informal self-test. It spans fundamentals like filesystems, permissions, processes, and networking, then ventures into security, performance, virtualization, containers, and databases. The format encourages quick drills: pick a topic, answer from memory, then compare against concise explanations. Many questions highlight real-world troubleshooting patterns rather than purely...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 4
    Driver.js

    Driver.js

    A lightweight, dependency-free JavaScript library

    Driver.js is a lightweight, framework-agnostic JavaScript library for building guided tours, feature spotlights, and product walkthroughs. It programmatically highlights elements on a page, dims the background, and attaches callouts so users learn new flows without leaving the UI. The API lets you define steps, order, and behavior, while handling positioning, scrolling, and viewport collisions gracefully. It strives to be unobtrusive: tours can be triggered contextually, resumed, or...
    Downloads: 0 This Week
    Last Update:
    See Project
  • Nonprofit Budgeting Software Icon
    Nonprofit Budgeting Software

    Martus Solutions provides seamless budgeting, reporting, and forecasting tools that integrate with accounting systems for real-time financial insights

    Martus' collaborative and easy-to-use budgeting and reporting platform will save you hundreds of hours each year. It's designed to make the entire budgeting process easier and create unlimited financial transparency.
    Learn More
  • 5
    Tree

    Tree

    tree is a library for working with nested data structures

    Tree (dm-tree) is a lightweight Python library developed by Google DeepMind for manipulating nested data structures (also called pytrees). It generalizes Python’s built-in map function to operate over arbitrarily nested collections — including lists, tuples, dicts, and custom container types — while preserving their structure. This makes it particularly useful in machine learning pipelines and JAX-based workflows, where complex parameter trees or hierarchical state representations are...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 6
    Practical ASP.NET Core

    Practical ASP.NET Core

    Practical samples of ASP.NET Core 10 RC

    practical-aspnetcore is a repository containing hundreds of sample projects, micro-applications, and code snippets across multiple versions of .NET Core (including 2.1, 3.1, 5.0, 6.0, 7.0, 8.0, 9.0, 10 RC) to illustrate real-world patterns, advanced topics, and features in .NET Core development. It is intended as a hands-on learning resource for building web APIs, middleware, authentication, real-time, microservices, etc.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7
    GLM.jl

    GLM.jl

    Generalized linear models in Julia

    GLM.jl is a Julia package for fitting linear and generalized linear models (GLMs) with a syntax and functionality familiar to users of R or other statistical environments. It is part of the JuliaStats ecosystem and is tightly integrated with StatsModels.jl for formula handling, and Distributions.jl for specifying error families. The package supports modeling through both formula-based (e.g. @formula) and matrix-based interfaces, allowing both high-level convenience and low-level control....
    Downloads: 0 This Week
    Last Update:
    See Project
  • 8
    Integrant

    Integrant

    Micro-framework for data-driven architecture

    Integrant is a minimalistic micro-framework for building applications following a data-driven architecture. It lets you define system components declaratively as configuration data and handles lifecycle actions (init, halt, resume) in dependency order, serving as a modern alternative to Component or Mount. Integrant was built as a reaction to fix some perceived weaknesses with Component. In Component, systems are created programmatically. Constructor functions are used to build records,...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    Reitit

    Reitit

    A fast data-driven routing library for Clojure/Script

    Reitit is a fast, data-driven routing library for Clojure and ClojureScript, designed for seamless integration with Ring and other ecosystems. It offers declarative route definition, efficient path resolution, and flexible route metadata, enabling both server-side and client-side routing with high performance and extensibility. A Ring routing app with input & output coercion using data-specs. Simple web application using Ring/Reitit and Integrant. A simple Clojure backend using Reitit to...
    Downloads: 0 This Week
    Last Update:
    See Project
  • Rezku Point of Sale Icon
    Rezku Point of Sale

    Designed for Real-World Restaurant Operations

    Rezku is an all-inclusive ordering platform and management solution for all types of restaurant and bar concepts. You can now get a fully custom branded downloadable smartphone ordering app for your restaurant exclusively from Rezku.
    Learn More
  • 10
    FluentValidation

    FluentValidation

    .NET validation library for building strongly-typed validation rules

    FluentValidation is a popular .NET library offering a fluent, expressive interface for building strongly-typed validation rules. It supports modern .NET runtimes including .NET 8+, and integrates smoothly into .NET Core, Blazor, and other ecosystems. FluentValidation has adopted the Code of Conduct defined by the Contributor Covenant to clarify expected behavior in our community. For more information see the .NET Foundation Code of Conduct. A validation library for .NET that uses a fluent...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    Spectre.Console

    Spectre.Console

    Library that makes it easier to create beautiful console applications

    Spectre.Console is a .NET library that enables the creation of rich, cross‑platform console applications. Heavily inspired by Python’s Rich library, it provides advanced styling, layout, and input capabilities for modern terminal UIs. Supports tables, grids, panels, and a Rich inspired markup language. Supports the most common SRG parameters when it comes to text styling such as bold, dim, italic, underline, strikethrough, and blinking text. Supports 3/4/8/24-bit colors in the terminal. The...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    Awesome Free ChatGPT

    Awesome Free ChatGPT

    List of free ChatGPT mirror sites, continuously updated

    This is a curated directory of freely accessible ChatGPT-style services and mirror sites that offer AI chatbot interfaces without login or payment requirements. Resources often support multiple models like GPT-4, Claude, Gemini, and more. Data collected from multiple independent sites with descriptions and tags. Includes services with image upload and drawing capabilities. Aggregates free, no-login-required ChatGPT-like web services. Continually updated mirror list to maintain availability.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    libuv

    libuv

    Cross-platform asynchronous I/O

    libuv is a high-performance, multi-platform C library focusing on asynchronous I/O, originally developed for Node.js. It provides a consistent event-loop and I/O abstraction layer across a range of systems, making non-blocking operations portable and efficient. Full-featured event loop backed by epoll, kqueue, IOCP, event ports. Asynchronous TCP and UDP sockets. Asynchronous DNS resolution. Asynchronous file and file system operations. File system events, ANSI escape code-controlled TTY. IPC...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    slop

    slop

    Queries for a selection from the user and prints the region to stdout

    slop (Select Operation) is a small utility for visually selecting a region of the screen using the mouse and returning its coordinates. It's commonly used as a helper tool in screen capture or automation scripts and integrates well with utilities like maim, grim, or custom scripts for capturing and processing screen regions. Written in C++ and using X11, it’s lightweight and flexible, with options to control border styling, transparency, and display output. It’s a must-have for power users...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    Peroxide

    Peroxide

    Rust numeric library with high performance and friendly syntax

    Rust numeric library contains linear algebra, numerical analysis, statistics and machine learning tools with R, MATLAB, Python-like macros. Peroxide uses a 1D data structure to represent matrices, making it straightforward to integrate with BLAS (Basic Linear Algebra Subprograms). This means that Peroxide can guarantee excellent performance for linear algebraic computations by leveraging the optimized routines provided by BLAS. For users familiar with numerical computing libraries like...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    glbinding

    glbinding

    A C++ binding for the OpenGL API, generated using the gl.xml specifica

    A C++ binding for the OpenGL API, generated using the gl.xml specification. glbinding leverages C++11 features like enum classes, lambdas, and variadic templates, instead of relying on macros; all OpenGL symbols are real functions and variables. It provides type-safe parameters, per-feature API headers, lazy function resolution, multi-context and multi-thread support, global and local function callbacks, meta information about the generated OpenGL binding and the OpenGL runtime, as well as...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    Python colorlog

    Python colorlog

    A colored formatter for the python logging module

    Add colors to the output of Python's logging module. This library is over a decade old and supported a wide set of Python versions for most of its life, which has made it a difficult library to add new features to. colorlog 6 may break backward compatibility so that newer features can be added more easily, but may still not accept all changes or feature requests. colorlog 4 might accept essential bug fixes but should not be considered actively maintained and will not accept any major changes...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    Pymunk

    Pymunk

    Pymunk is a easy-to-use pythonic 2d physics library

    Pymunk is an easy-to-use Pythonic 2D physics library that can be used whenever you need 2D rigid body physics from Python. Perfect when you need 2D physics in your game, demo or simulation! It is built on top of the very capable 2D physics library Chipmunk2D. The first version was released in 2007 and Pymunk is still actively developed and maintained today, more than 15 years of active development. Pymunk has been used with success in many projects, big and small. For example: 3 Pyweek game...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    AutoNumeric

    AutoNumeric

    Standalone library that provides live as-you-type formatting

    AutoNumeric is a standalone library that provides live-as-you-type formatting for international numbers and currencies. All in all, AutoNumeric supports most international numeric formats and currencies including those used in Europe, Asia, and North and South America. AutoNumeric focuses on efficiency and speed making all your input interactions blazing fast. No dependencies are needed to use AutoNumeric. Written in ES6, AutoNumeric uses the latest technologies and is prepared for the...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    stdlib

    stdlib

    Standard library for JavaScript and Node.js

    A standard library for javascript and node.js. High performance, rigorous, and robust mathematical and statistical functions. Build advanced statistical models and machine learning libraries. Plotting and graphics functionality for data visualization and exploratory data analysis. Analyze and understand your data. Comprehensively tested utilities for application and library development. Functions to assert, group, filter, map, pluck, and transform your data both in browsers and on the...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    IMAP Library for Laravel

    IMAP Library for Laravel

    Integrate both the native php-imap module and an extended custom imap

    Laravel IMAP is an easy way to integrate both the native php-imap module and an extended custom imap protocol into your Laravel app. This enables your app to not only respond to new emails but also allows it to read and parse existing mails and much more. PHP-IMAP is a wrapper for common IMAP communication without the need to have the "native" php-imap module installed/enabled. The IMAP protocol is completely integrated and therefore supports all IMAP commands including the IDLE operation...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    Django Notebook

    Django Notebook

    Django + shell_plus + Jupyter notebooks made easy

    Django + shell_plus + Jupyter notebooks made easy. A Jupyter notebook with access to objects from the Django ORM is a powerful tool to introspect data and run ad-hoc queries. Built-in integration with the imported objects from django-extensions shell_plus. Saves the state between sessions so you don't need to remember what you did. Inheritance diagrams on any object, including ORM models.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    Opal jQuery

    Opal jQuery

    jQuery for Opal

    opal-jquery provides DOM access to opal by wrapping jQuery (or zepto) and providing a nice ruby syntax for dealing with jQuery instances. opal-jquery provides an Element class, whose instances are toll-free bridged instances of jQuery objects. Just like ruby arrays are just javascript arrays, Element instances are just jQuery objects. This makes interaction with jQuery plugins much easier. Also, Element will try to bridge with Zepto if it cannot find jQuery loaded, making it ideal for mobile...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    PyTensor

    PyTensor

    Python library for defining and optimizing mathematical expressions

    PyTensor is a fork of Aesara, a Python library for defining, optimizing, and efficiently evaluating mathematical expressions involving multi-dimensional arrays. PyTensor is based on Theano, which has been powering large-scale computationally intensive scientific investigations since 2007. A hackable, pure-Python codebase. Extensible graph framework is suitable for rapid development of custom operators and symbolic optimizations. Implements an extensible graph transpilation framework that...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    XcodeProj

    XcodeProj

    Read, update and write your Xcode projects

    XcodeProj is a library written in Swift for parsing and working with Xcode projects. It's heavily inspired by CocoaPods XcodeProj and xcode. Using swift-sh you can automate project-tasks using scripts, for example, we can make a script that keeps a project’s version key in sync with the current git tag that represents the project’s version. Future adaption could easily include determining the version and bumping it automatically. If so, we recommend using a library that provides a Version...
    Downloads: 0 This Week
    Last Update:
    See Project