Showing 1285 open source projects for "simple java project"

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    Our Free Plans just got better! | Auth0

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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
    Reposilite

    Reposilite

    Lightweight and easy-to-use repository management software

    Lightweight and easy-to-use repository manager for Maven-based artifacts in JVM ecosystem. This is simple, extensible and scalable self-hosted solution to replace managers like Nexus, Archiva, or Artifactory, with reduced resource consumption. To run Reposilite for your personal needs you should assign around 20MB of RAM and at least Java 11+ installed. For huge public repositories, you can adjust the memory limit and even the size of used thread pools in the configuration. ...
    Downloads: 0 This Week
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  • 2
    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. ...
    Downloads: 2 This Week
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  • 3
    GuitarPedal

    GuitarPedal

    Linus learns analog circuits

    GuitarPedal is an experimental repository exploring a digital guitar-effects signal chain implemented with lean, low-level code. The project demonstrates how to read audio input, process it through simple transformations, and write the result out in real time with minimal latency. It emphasizes straightforward, inspectable DSP so developers can follow the math and tweak parameters without a giant framework in the way. The codebase favors portability and simplicity, focusing on a handful of canonical effects rather than a sprawling plugin architecture. ...
    Downloads: 1 This Week
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  • 4
    Kanidm

    Kanidm

    Kanidm: A simple, secure, and fast identity management platform

    Kanidm is a simple and secure identity management platform, allowing other applications and services to offload the challenge of authenticating and storing identities to Kanidm. The goal of this project is to be a complete identity provider, covering the broadest possible set of requirements and integrations. You should not need any other components (like Keycloak) when you use Kanidm - we already have everything you need.
    Downloads: 0 This Week
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  • Smart Business Texting that Generates Pipeline Icon
    Smart Business Texting that Generates Pipeline

    Create and convert pipeline at scale through industry leading SMS campaigns, automation, and conversation management.

    TextUs is the leading text messaging service provider for businesses that want to engage in real-time conversations with customers, leads, employees and candidates. Text messaging is one of the most engaging ways to communicate with customers, candidates, employees and leads. 1:1, two-way messaging encourages response and engagement. Text messages help teams get 10x the response rate over phone and email. Business text messaging has become a more viable form of communication than traditional mediums. The TextUs user experience is intentionally designed to resemble the familiar SMS inbox, allowing users to easily manage contacts, conversations, and campaigns. Work right from your desktop with the TextUs web app or use the Chrome extension alongside your ATS or CRM. Leverage the mobile app for on-the-go sending and responding.
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  • 5
    hangover

    hangover

    Hangover runs simple Win32 applications on arm64 Linux

    This is Hangover, a project started by André Zwing and Stefan Dösinger in 2016 that currently can run x86_32 Windows applications on aarch64 Wine. Hangover uses various emulators as DLLs (pick one that suits your needs, e.g. works for you) to only emulate the application you want to run instead of emulating a complete Wine installation. As soon as the application does a Windows/Wine system call, say NtUserCreateWindowEx, it's executed outside the emulator (read non-emulated, fast, native)....
    Downloads: 3 This Week
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  • 6
    Micrometer Application Metrics

    Micrometer Application Metrics

    App observability facade for the most popular observability tools

    Micrometer provides a simple facade over the instrumentation clients for the most popular observability systems, allowing you to instrument your JVM-based application code without vendor lock-in. Think SLF4J, but for observability. Micrometer provides vendor-neutral interfaces for timers, gauges, counters, distribution summaries, and long task timers with a dimensional data model that, when paired with a dimensional monitoring system, allows for efficient access to a particular named metric...
    Downloads: 3 This Week
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  • 7
    S3Proxy

    S3Proxy

    S3Proxy implements the S3 API and proxies requests

    ...Translation from S3 to Backblaze B2, EMC Atmos, Google Cloud, Microsoft Azure, and OpenStack Swift. Testing without Amazon by using the local filesystem. Extension via middleware. Embedding into Java applications. Docker Hub hosts a Docker image and has instructions on how to run it. Users can download releases from GitHub. Developers can build the project by running mvn package which produces a binary at target/s3proxy. S3Proxy requires Java 8 or newer to run. Configure S3Proxy via a properties file. An example using the local file system as the storage backend with anonymous access. ...
    Downloads: 0 This Week
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  • 8
    Fast Android Networking

    Fast Android Networking

    A Complete Fast Android Networking Library that also supports HTTP/2

    Fast Android Networking Library is a powerful library for doing any type of networking in Android applications which is made on top of OkHttp Networking Layer. Fast Android Networking Library takes care of each and everything. So you don't have to do anything, just make a request and listen for the response. The recent removal of HttpClient in Android Marshmallow(Android M) made other networking libraries obsolete. No other single library does and everything like making requests, downloading...
    Downloads: 0 This Week
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  • 9
    kubeinvaders

    kubeinvaders

    Gamified Chaos Engineering Tool for Kubernetes

    This project is part of the landscape of Cloud Native Computing Foundation in the Observability and Analysis - Chaos Engineering section. Backed by the teams at platform engineering.it and devopstribe.it, which provides enterprise-grade features and certified resilience services for your Kubernetes infrastructure.
    Downloads: 0 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
    PowerVim

    PowerVim

    Make your vim more power and much easer

    PowerVim is an “industrial-grade” Vim configuration that turns stock Vim into a productive IDE-like environment for multiple languages. It focuses on fast navigation, code completion, and a tidy visual presentation so you can spend more time editing and less time hunting for commands. The setup includes language dictionaries and completion helpers, syntax highlighting, and a curated statusline and colors to keep important context visible. It integrates with Git to surface file status and...
    Downloads: 1 This Week
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  • 11
    Gogs

    Gogs

    A painless self-hosted Git service

    Gogs is a simple, stable, self-hosted Git service that is easy to install and setup. All you have to do is run the binary on any platform that Go supports: Linux, macOS and Windows. You may also install from source, from packages, or ship with Docker or Vagrant. Gogs is very lightweight with minimal hardware requirements, running on Raspberry Pi and even on NAS devices.
    Downloads: 6 This Week
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  • 12
    openHAB Distribution

    openHAB Distribution

    The binary distribution of openHAB

    The open Home Automation Bus (openHAB) project aims to provide a universal integration platform for all things around home automation. It is a pure Java solution, fully based on OSGi. It is designed to be vendor-neutral as well as hardware/protocol-agnostic. openHAB brings together different bus systems, hardware devices, and interface protocols by dedicated bindings. These bindings send and receive commands and status updates on the openHAB event bus.
    Downloads: 0 This Week
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  • 13
    Datahike

    Datahike

    A durable Datalog implementation adaptable for distribution

    Datahike is a durable Datalog database powered by an efficient Datalog query engine. This project started as a port of DataScript to the hitchhiker-tree. All DataScript tests are passing, but we are still working on the internals. Having said this we consider Datahike usable for medium sized projects, since DataScript is very mature and deployed in many applications and the hitchhiker-tree implementation is heavily tested through generative testing. We are building on the two projects and...
    Downloads: 1 This Week
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  • 14
    CapRover

    CapRover

    Scalable PaaS (automated Docker+nginx), aka Heroku on Steroids

    CapRover is an extremely easy-to-use app/database deployment & web server manager for your NodeJS, Python, PHP, ASP.NET, Ruby, MySQL, MongoDB, Postgres, WordPress (and etc...) applications! It's blazingly fast and very robust as it uses Docker, Nginx, LetsEncrypt and NetData under the hood behind its simple-to-use interface. For a developer who does not like spending hours and days setting up a server, building tools, sending code to the server, building it, getting an SSL certificate, installing it, update nginx over and over again. Deploy apps in your own space (Node js, PHP, Python, Java literally any language!) Simple interface for many docker operations, exposing container ports to host, setting up persistent directories, instance count and etc. ...
    Downloads: 0 This Week
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  • 15
    Docker Mailserver

    Docker Mailserver

    Production-ready fullstack but simple mail server

    docker-mailserver provides a production-ready, all-in-one email server in a single container, focused on simplicity and maintainability. It bundles the core mail stack—Postfix for SMTP and Dovecot for IMAP/POP3—then layers in optional anti-spam and anti-virus services, DKIM/DMARC signing and verification, and rate-/abuse-protection tooling. The project emphasizes secure defaults while exposing configuration via environment variables and mounted files, allowing you to define users, aliases,...
    Downloads: 1 This Week
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  • 16
    vimrc

    vimrc

    The ultimate Vim configuration (vimrc)

    amix/vimrc is a popular, batteries-included Vim configuration that aims to make Vim productive from the very first launch. It ships with a curated set of sensible defaults, mappings, and plugins that cover editing, navigation, search, Git, and language tooling. The project offers two tracks—a full configuration and a lightweight version—so you can choose between a maximal setup or a leaner base. Installation is intentionally simple, relying on a single command that clones and bootstraps everything into place. The repo is opinionated about ergonomics: consistent leader mappings, improved motions, and polished statusline settings reduce friction for everyday work. ...
    Downloads: 0 This Week
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  • 17
    Kubegres

    Kubegres

    Kubegres is a Kubernetes operator allowing to deploy clusters

    ...It is minimalist in terms of codebase compared to other open-source Postgres operators. It has the minimal and yet robust required features to manage a cluster of PostgreSql on Kubernetes. We aim keeping this project small and simple.
    Downloads: 0 This Week
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  • 18
    Mailu

    Mailu

    Insular email distribution - mail server as Docker images

    Mailu is a simple yet full-featured mail server as a set of Docker images. It is free software (both as in free beer and as in free speech), open to suggestions and external contributions. The project aims at providing people with an easily setup, easily maintained and full-featured mail server while not shipping proprietary software nor unrelated features often found in popular groupware.
    Downloads: 0 This Week
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  • 19
    The OpenHMS Project
    OpenHMS brands a collection of projects and many subprojects developed by Health Market Science. This is a robust collection of development libraries, APIs, and tools oriented around data manipulation and professional software development.
    Downloads: 2 This Week
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  • 20
    OpenAuth

    OpenAuth

    Universal, standards-based auth provider

    OpenAuth is an authentication system aimed at modern serverless and edge runtimes, providing a cohesive way to add sign-in flows and session management to web apps. It supports common patterns such as OAuth with popular identity providers, email-based links or codes, and passkeys/passwordless options, while exposing a simple API that fits full-stack frameworks. The project is designed to be infrastructure-friendly, aligning with managed stores and serverless platforms so sessions, webhooks, and callbacks work reliably at scale. It emphasizes secure defaults, including robust token handling, CSRF protections, and clear session lifecycles, while leaving room for customization where apps need it. ...
    Downloads: 0 This Week
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  • 21
    SeaweedFS

    SeaweedFS

    Distributed storage system for blobs, objects, files, and data lake

    ...Filer supports cross-cluster active-active replication, Kubernetes, POSIX, S3 API, encryption, Erasure Coding for warm storage, FUSE mount, Hadoop, WebDAV. SeaweedFS is an independent Apache-licensed open source project with its ongoing development made possible because of the community. SeaweedFS is a simple and highly scalable distributed file system. There are two objectives, to store billions of files, and to serve the files fast! SeaweedFS started as an Object Store to handle small files efficiently. Instead of managing all file metadata in a central master, the central master only manages volumes on volume servers, and these volume servers manage files and their metadata.
    Downloads: 0 This Week
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  • 22
    Coraza

    Coraza

    OWASP Coraza WAF is a golang modsecurity compatible firewall library

    Coraza is an open-source, enterprise-grade, high-performance Web Application Firewall (WAF) ready to protect your beloved applications. It is written in Go, supports ModSecurity SecLang rulesets and is 100% compatible with the OWASP Core Rule Set. Coraza is a drop-in alternative to replace the soon-to-be abandoned Trustwave ModSecurity Engine and supports industry-standard SecLang rule sets. Coraza runs the OWASP Core Rule Set (CRS) to protect your web applications from a wide range of...
    Downloads: 2 This Week
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  • 23
    log4cplus

    log4cplus

    Logging Framework for C++

    log4cplus is a simple to use C++ logging API providing thread-safe, flexible, and arbitrarily granular control over log management and configuration. It is modelled after the Java log4j API.
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    Downloads: 21,320 This Week
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  • 24
    Java SID Player Music Library V2
    This is a Commodore 64 emulator specialized for sound reproduction. It is also a SID player for music collections like HVSC and CGSC. It is a full C64 emulator and can play games of the GameBase64 project as well.
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    Downloads: 68 This Week
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  • 25
    SparkyLinux

    SparkyLinux

    Lightweight & fast Debian-based Linux Distribution

    SparkyLinux is a GNU/Linux distribution created on the top of Debian GNU/Linux operating system. Sparky is fast, lightweight and fully customizable OS which offers a few versions for different users and different tasks. Sparky is in-between the distros that are beginner-friendly and those, that require some amount of Linux knowledge. Beginning Linux users are advised to consult the project forums regarding any issues or doubts.
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    Downloads: 4,395 This Week
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