2820 projects for "java open source" with 2 filters applied:

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  • 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.
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  • 1
    BlockHook

    BlockHook

    Hook Objective-C blocks. A powerful AOP tool

    BlockHook is an Objective-C library that enables hooking into the execution of blocks (closures). It allows developers to intercept, modify, and monitor block invocations for debugging, analytics, or altering app behavior.
    Downloads: 1 This Week
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  • 2
    Google Cloud Node.js Client

    Google Cloud Node.js Client

    Google Cloud Client Library for Node.js

    The Google Cloud Node.js Client is an official library that provides idiomatic Node.js interfaces for Google Cloud services, simplifying the integration of these services into Node.js applications.
    Downloads: 1 This Week
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  • 3
    SendGrid Node.js Library

    SendGrid Node.js Library

    The Official Twilio SendGrid Led, Community Driven Node.js API Library

    The SendGrid Node.js Library provides a simple interface for sending emails through SendGrid's API, enabling developers to integrate email functionalities into Node.js applications.
    Downloads: 1 This Week
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  • 4
    BIP Utility Library

    BIP Utility Library

    Generation of mnemonics, seeds, private/public keys and addresses

    Generation of mnemonics, seeds, private/public keys, and addresses for different types of cryptocurrencies. A Python library for handling cryptocurrency wallet standards like BIP32, BIP39, and BIP44.
    Downloads: 1 This Week
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  • Payments you can rely on to run smarter. Icon
    Payments you can rely on to run smarter.

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  • 5
    Librelancer

    Librelancer

    A re-implementation of Freelancer

    Librelancer is an open-source reimplementation of the engine behind Freelancer, the iconic 2003 space trading and combat simulation game by Microsoft. Written in C# and powered by OpenGL and modern game development practices, Librelancer faithfully replicates the original gameplay while providing a flexible codebase for modding, analysis, and future enhancements.
    Downloads: 1 This Week
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  • 6
    ChrysaLisp

    ChrysaLisp

    Parallel OS, with GUI, Terminal, OO Assembler, Class libraries

    ChrysaLisp is a 64-bit, MIMD, multi-CPU, multi-threaded, multi-core, multi-user parallel operating system with features such as a GUI, terminal, OO Assembler, class libraries, C-Script compiler, Lisp interpreter, debugger, profiler, vector font engine, and more. It supports MacOS, Windows, and Linux for x64, Riscv64, and Arm64 and eventually will move to bare metal. It also allows the modeling of various network topologies and the use of ChrysaLib hub nodes to join heterogeneous host...
    Downloads: 3 This Week
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  • 7
    Pothos GraphQL

    Pothos GraphQL

    Pothos GraphQL is library for creating GraphQL schemas in typescript

    Pothos is a plugin based GraphQL schema builder for typescript. It makes building graphql schemas in typescript easy, fast and enjoyable. The core of Pothos adds 0 overhead at runtime, and has graphql as its only dependency. Pothos is the most type-safe way to build GraphQL schemas in typescript, and by leveraging type inference and typescript's powerful type system Pothos requires very few manual type definitions and no code generation. Pothos has a unique and powerful plugin system that...
    Downloads: 3 This Week
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  • 8
    Go SQLBuilder

    Go SQLBuilder

    Powerful SQL string builder library plus a zero-config ORM

    Go-SQLBuilder is a flexible and powerful SQL string builder library for the Go programming language. It aids developers in constructing SQL queries programmatically, ensuring code readability and maintainability.
    Downloads: 1 This Week
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  • 9
    faker-cxx

    faker-cxx

    C++ Faker library for generating fake (but realistic) data

    Faker C++ is a C++ library inspired by the popular Faker.js, aimed at providing developers with a robust tool for generating fake (but realistic) data. Whether you're building test suites, populating databases, or creating demos, Faker C++ has got you covered.
    Downloads: 1 This Week
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  • Rent Manager Software Icon
    Rent Manager Software

    Landlords, multi-family homes, manufactured home communities, single family homes, associations, commercial properties and mixed portfolios.

    Rent Manager is award-winning property management software built for residential, commercial, and short-term-stay portfolios of any size. The program’s fully customizable features include a double-entry accounting system, maintenance management/scheduling, marketing integration, mobile applications, more than 450 insightful reports, and an API that integrates with the best PropTech providers on the market.
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  • 10
    rsocket-kotlin

    rsocket-kotlin

    RSocket Kotlin multi-platform implementation

    RSocket provides a protocol for Reactive Streams semantics between client-server, and server-server communication. RSocket is a binary protocol for use on byte stream transports such as TCP, WebSockets, and Aeron. RSocket is intended to be consumed via one of the various implementation libraries which implement the RSocket Protocol.
    Downloads: 1 This Week
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  • 11
    TIL

    TIL

    Today I Learned

    This “Today I Learned” repository is a living notebook of concise tips, commands, and gotchas collected across many tools and languages. Entries are intentionally short—often a paragraph and an example—so they’re easy to search, skim, and apply in a pinch. Topics span everyday developer concerns: shell one-liners, Git incantations, editor tricks, language quirks, and small debugging patterns that save time. Because each note is atomic, the collection grows organically without becoming a...
    Downloads: 2 This Week
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  • 12
    Google CTF

    Google CTF

    Google CTF

    Google CTF is the public repository that houses most of the challenges from Google’s Capture-the-Flag competitions since 2017 and the infrastructure used to run them. It’s a learning and practice archive: competitors and educators can replay tasks across categories like pwn, reversing, crypto, web, sandboxing, and forensics. The code and binaries intentionally contain vulnerabilities—by design—so users can explore exploit chains and patching in realistic settings. The repo also includes...
    Downloads: 2 This Week
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  • 13
    webgl-plot

    webgl-plot

    A high-Performance real-time 2D plotting library based on native WebGL

    webgl-plot is a high-performance plotting library for real-time data visualization in the browser using WebGL. Unlike traditional canvas or SVG-based charting libraries, webgl-plot is optimized for streaming and dynamic updates, making it ideal for oscilloscope-style data, biomedical signals, or any application where data updates hundreds of times per second. Its minimal memory footprint and GPU acceleration ensure excellent performance even with tens of thousands of data points, and its...
    Downloads: 2 This Week
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  • 14
    Store5

    Store5

    A Kotlin Multiplatform library for building network-resilient apps

    Modern software needs data representations to be fluid and always available. Users expect their UI experience to never be compromised (blocked) by new data loads. Whether an application is social, news or business-to-business, users expect a seamless experience both online and offline. International users expect minimal data downloads as many megabytes of downloaded data can quickly result in astronomical phone bills. Store is a typed repository that returns a flow of Data /Loading /Error...
    Downloads: 2 This Week
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  • 15
    ChromeAppHeroes

    ChromeAppHeroes

    Chinese manual for excellent Chrome plug-ins

    ...For learners or developers new to Chrome extension/app development, ChromeAppHeroes could serve as a starting kit: instead of starting from scratch, they can clone or fork the repo and immediately begin building features, thereby speeding up development. The repository’s open-source nature means users are free to adapt, extend, or repurpose the sample apps to their own needs — for example, privacy tools, quick productivity extensions, or custom browser tooling.
    Downloads: 1 This Week
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  • 16
    Monocle

    Monocle

    Optics library for Scala

    Monocle is a pure functional, optics library for Scala providing immutable data access and transformation tools — including Lens, Prism, Iso, Optional, and Traversal. It enables composable, declarative modifications of deeply nested immutable structures in a concise and type-safe fashion.
    Downloads: 1 This Week
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  • 17
    todo-comments.nvim

    todo-comments.nvim

    Highlight, list and search todo comments in your projects

    todo-comments.nvim is a Neovim plugin that highlights and searches for comment annotations such as TODO, FIX, HACK, and others. It helps developers keep track of tasks, warnings, or issues left in code by providing colorful highlights and integration with search tools like Telescope. The plugin is written in Lua and is highly configurable to match different workflows.
    Downloads: 1 This Week
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  • 18
    TCG

    TCG

    Terminal cell graphics library

    Terminal Cell Graphics (TCG) is a Go library that enables 1-bit graphics rendering in terminal applications using Unicode block symbols. It's designed for developers who want to incorporate simple graphics into CLI tools or games, providing a unique way to display visuals in text-based environments.
    Downloads: 1 This Week
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  • 19
    Minify php

    Minify php

    CSS & JavaScript minifier, in PHP

    Matthias Mullie Minify is a PHP library that minifies CSS and JavaScript files by removing whitespace, comments, and other unnecessary characters. It helps reduce file size and load time, making it ideal for optimizing web assets in production environments. The library is fast, reliable, and can process both strings and file-based input.
    Downloads: 1 This Week
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  • 20
    PreCompose

    PreCompose

    Compose Multiplatform Navigation && State Management

    Compose Multiplatform Navigation && ViewModel, inspired by Jetpack Navigation, ViewModel and Lifecycle, PreCompose provides similar (or even the same) components for you but in Kotlin, and it's Kotlin Multiplatform project.
    Downloads: 1 This Week
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  • 21
    Compose Rich Editor

    Compose Rich Editor

    A Rich text editor library for both Jetpack Compose

    A rich text editor library for both Jetpack Compose and Compose Multiplatform, fully customizable and supports the common rich text editor features.
    Downloads: 1 This Week
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  • 22
    Kotlin Wrappers

    Kotlin Wrappers

    Kotlin wrappers for popular JavaScript libraries

    This repository hosts a number of Kotlin wrappers for popular JavaScript libraries. To learn more please refer to the READMEs of individual modules. Artifacts are published to Maven Central, see the corresponding README files for package coordinates. All packages require JDK 8 to be installed.
    Downloads: 1 This Week
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  • 23
    Hateoas

    Hateoas

    A PHP library to support implementing representations

    A PHP library to support implementing representations for HATEOAS REST web services.
    Downloads: 1 This Week
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  • 24
    Multimodal

    Multimodal

    TorchMultimodal is a PyTorch library

    This project, also known as TorchMultimodal, is a PyTorch library for building, training, and experimenting with multimodal, multi-task models at scale. The library provides modular building blocks such as encoders, fusion modules, loss functions, and transformations that support combining modalities (vision, text, audio, etc.) in unified architectures. It includes a collection of ready model classes—like ALBEF, CLIP, BLIP-2, COCA, FLAVA, MDETR, and Omnivore—that serve as reference...
    Downloads: 2 This Week
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  • 25
    Material UI

    Material UI

    Comprehensive React component library that implements Material Design

    Material UI is an open-source React component library that implements Google's Material Design. It's comprehensive and can be used in production out of the box. A meticulous implementation of Material Design; every Material UI component meets the highest standards of form and function. Start quickly with Material Design or use the advanced theming feature to easily tailor the components to your needs.
    Downloads: 1 This Week
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