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

  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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    Simple, Secure Domain Registration

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    Register or renew your domain and pay only what we pay. No markups, hidden fees, or surprise add-ons. Choose from over 400 TLDs (.com, .ai, .dev). Every domain is integrated with Cloudflare's industry-leading DNS, CDN, and free SSL to make your site faster and more secure. Simple, secure, at-cost domain registration.
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  • 1
    Swoole

    Swoole

    Coroutine-based concurrency library for PHP

    Build high-performance, scalable, concurrent TCP, UDP, Unix Socket, HTTP, WebSocket services with PHP and easy to use coroutine, fiber API. Write your next scalable async application server with PHP coroutine and PHP fiber API. Compared with other async programming frameworks or softwares such as Nginx, Tornado, Node.js, Swoole has the built-in PHP coroutine, fiber and async support, multiple threads I/O modules. You can use sync or async, coroutine, fiber API to write the applications or create thousands of light weight fibers within one Linux process. Swoole PHP network framework enhances the efficiency of development team. The network layer in Swoole is event-based and takes full advantage of the underlying epoll/kqueue implementation, making it really easy to serve millions of requests. Swoole 4.x uses a brand new engine kernel and now it has a full-time developer team, so we are entering an unprecedented period in PHP history which offers a unique possibility for rapid evolution.
    Downloads: 7 This Week
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  • 2
    Cytoscape.js

    Cytoscape.js

    Graph theory library for visualization and analysis

    A fully featured graph library written in pure JS. Permissive open source license (MIT) for the core Cytoscape.js library and all first-party extensions. Used in commercial projects and open-source projects in production. Designed for users first, for both frontfacing app usecases and developer usecases. Highly optimized. Compatible with All modern browsers. Legacy browsers with ES5 and canvas support. ES5 and canvas support are required, and feature detection is used for optional performance enhancements. Browsers circa 2012 support ES5 fully: IE10, Chrome 23, Firefox 21, Safari 6 (caniuse). Browsers with partial but sufficient ES5 support also work, such as IE9 and Firefox 4. The documentation and examples are not optimized for old browsers, although the library itself is. Some demos may not work in old browsers in order to keep the demo code simple.
    Downloads: 2 This Week
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  • 3
    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 attacks, including the OWASP Top Ten, with a minimum of false alerts. CRS protects from many common attack categories including: SQL Injection (SQLi), Cross Site Scripting (XSS), PHP & Java Code Injection, HTTPoxy, Shellshock, Scripting/Scanner/Bot Detection & Metadata & Error Leakages. Coraza is a library at its core, with many integrations to deploy on-premise Web Application Firewall instances.
    Downloads: 1 This Week
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  • 4
    Elasticsearch Node.js client

    Elasticsearch Node.js client

    Elasticsearch client library for Node.js

    Node.js client for Elasticsearch. The client versioning follows the Elastic Stack versioning, this means that major, minor, and patch releases are done following a precise schedule that often does not coincide with the Node.js release times. Language clients are forward compatible; meaning that clients support communicating with greater or equal minor versions of Elasticsearch. Elasticsearch language clients are only backwards compatible with default distributions and without guarantees made. If you are using multiple versions of Elasticsearch, you need to use multiple versions of the client. In the past, install multiple versions of the same package was not possible, but with npm v6.9, you can do that via aliasing. You will require the packages from your code by using the alias you have defined.
    Downloads: 1 This Week
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  • The All-in-One Commerce Platform for Businesses - Shopify Icon
    The All-in-One Commerce Platform for Businesses - Shopify

    Shopify offers plans for anyone that wants to sell products online and build an ecommerce store, small to mid-sized businesses as well as enterprise

    Shopify is a leading all-in-one commerce platform that enables businesses to start, build, and grow their online and physical stores. It offers tools to create customized websites, manage inventory, process payments, and sell across multiple channels including online, in-person, wholesale, and global markets. The platform includes integrated marketing tools, analytics, and customer engagement features to help merchants reach and retain customers. Shopify supports thousands of third-party apps and offers developer-friendly APIs for custom solutions. With world-class checkout technology, Shopify powers over 150 million high-intent shoppers worldwide. Its reliable, scalable infrastructure ensures fast performance and seamless operations at any business size.
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  • 5
    Imagen - Pytorch

    Imagen - Pytorch

    Implementation of Imagen, Google's Text-to-Image Neural Network

    Implementation of Imagen, Google's Text-to-Image Neural Network that beats DALL-E2, in Pytorch. It is the new SOTA for text-to-image synthesis. Architecturally, it is actually much simpler than DALL-E2. It consists of a cascading DDPM conditioned on text embeddings from a large pre-trained T5 model (attention network). It also contains dynamic clipping for improved classifier-free guidance, noise level conditioning, and a memory-efficient unit design. It appears neither CLIP nor prior network is needed after all. And so research continues. For simpler training, you can directly supply text strings instead of precomputing text encodings. (Although for scaling purposes, you will definitely want to precompute the textual embeddings + mask)
    Downloads: 1 This Week
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  • 6
    C++ library for parsing and generating RFC-compliant Uniform Resource Identifiers (URI). Contains classes for URI scheme, authority, path, query, fragment, and the combined URI.
    Downloads: 10 This Week
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  • 7
    A Java library for executing, parsing and persisting NMap output.
    Downloads: 1 This Week
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  • 8
    JsonRpc-Cpp is an OpenSource implementation of JSON-RPC protocol in C++. JSON-RPC is a lightweight remote procedure call protocol similar to XML-RPC.
    Downloads: 3 This Week
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  • 9
    IpWay/HOST free Tcp/Ip Stack Library

    IpWay/HOST free Tcp/Ip Stack Library

    Real Time Tcp/Ip Stack Library

    IpWay/HOST is a real time tcp/ip stack library designed for embedded applications on 32bit microcontrollers ARM and PPC based (STM32Fx, SPC56x, SPC57x, SPC58x), where execution efficiency and compact code are important requirements. IpWay/HOST is characterized by high portability, compact size, copyless feature (also for TCP applications) and Checksum offload. Moreover, IpWay offers a 100% compatibility with AUTOSAR MCAL versions 4.13 and 4.2.x. IpWayStudio is a free ARM development environment based on Open Source tools and components. It has been created in order to support the development of IpWay itself and is now available as a free download. Everything is required to start working with IpWay is encapsulated in a single download. It takes just two minutes to have your development board working with IpWay.
    Downloads: 1 This Week
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  • Connect every part of your business to one bank account Icon
    Connect every part of your business to one bank account

    North One is a business banking app that integrates cash flow, payments, and budgeting to turn your North One Account into one Connected Bank Account

    North One is proudly built for small businesses, startups and freelancers across America. Make payments easily, keep tabs on your money and put your finances on autopilot through smart integrations with the tools you’re already using. North One was built to make managing money easy so you can focus on running your business. No more branches. No more lines. No more paperwork. Get complete access to your North One Account from your phone or computer, wherever your business takes you. Create Envelopes for taxes, payroll, rent, and anything else automatically.
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  • 10
    SimpleNet is a small Java network library that should aid in writing fast and lightweight network protocols without having to fuzzle around too much with protocol decisions. It mainly aides in message dispatching and abstraction.
    Downloads: 1 This Week
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  • 11
    Amazon Neptune SigV4 Signer

    Amazon Neptune SigV4 Signer

    A library for Amazon Neptune that enables AWS Signature Version

    A library for sending AWS Signature Version 4 signed requests over HTTP to Amazon Neptune. This package provides signers that can be used with various implementations of HttpRequests. AWS Identity and Access Management (IAM) is an AWS service that helps an administrator securely control access to AWS resources. IAM administrators control who can be authenticated (signed in) and authorized (have permissions) to use Neptune resources. IAM is an AWS service that you can use with no additional charge. You can use AWS Identity and Access Management (IAM) to authenticate to your Neptune DB instance or DB cluster. When IAM database authentication is enabled, each request must be signed using AWS Signature Version 4. AWS Signature Version 4 adds authentication information to AWS requests. For security, all requests to Neptune DB clusters with IAM authentication enabled must be signed with an access key. This key consists of an access key ID and secret access key.
    Downloads: 0 This Week
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  • 12
    The Application Server Development Library is a generic component modules library for application server/services & software development on the Windows & Linux & BSD platforms. It can be used for rapid developing network application and generic software.
    Downloads: 0 This Week
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  • 13
    Boost Communications Library
    This provides a few C++ classes to handle communications using Boost.asio across a network
    Downloads: 0 This Week
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  • 14
    CLara is a framework that enables you to access the computing power of many graphics processors in an IP-based network using a kind of Client/Proxy/Server model. Its programming interface conforms to the OpenCL 1.0 standard.
    Downloads: 0 This Week
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  • 15
    Commons-SSH is a thin bridge between different Java SSH implementations libraries. It doesn't contain any crypto-related code and created to be used by projects who doesn't want to care about export control regulations (let client to decide)
    Downloads: 0 This Week
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  • 16

    Falcon Time

    High Performance LAN Time Synchronization

    Falcon Time consists of two parts, a time server that will provide the base time for the network and an application library that is linked in to each application wishing to use the synchronized time from the time client. It is designed to work over a Local Area Network (LAN) and can synchronize time between two systems down to the time required for a ping between them or even below. It is also quick to start-up, being ready for use by the application in just a few milliseconds, rather than the hours or days required by NTP.
    Downloads: 0 This Week
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  • 17
    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 any type of file, uploading file, loading images from the network in ImageView, etc. There are some libraries but they are outdated. No other library provides a simple interface for doing all types of things in networking like setting priority, canceling, etc. As it uses Okio , No more GC overhead in android applications. Okio is made to handle GC overhead while allocating memory. Okio does some clever things to save CPU and memory.
    Downloads: 0 This Week
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  • 18
    This Library provides a java API for firewall logs, connection tracking and rules management.
    Downloads: 0 This Week
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  • 19

    J-X-Way UNI-TE

    Java library for X-Way and/or UNI-TE communication.

    PROJECT HAS MOVED HERE: https://github.com/Elektordi/x-way-uni-te X-Way and UNI-TE (also used in Unitelway) are communication protocols for old Schneider Electrics PLCs (Programmable Logic Controllers), formerly "Modicon Télémécanique". The aim of this open-source project is to create a Java library to send and receive such data, because there is actually no open-source project at all in this field. Keep in mind that those protocols are old and not maintained anymore by any company, but still used in many old PLCs installations.
    Downloads: 0 This Week
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  • 20

    JAsyncSocket

    Java asynchronous socket library

    Basic Java infrastructure for asynchronous socket service clients and servers. Inspired by asyncore Python module. See doc/TestServer.java for a server implementation example. See doc/TestClient.java for client implementation examples.
    Downloads: 0 This Week
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  • 21
    JavaRTMP is a Java library for interacting with Adobe Flash Player and Adobe Air applications via the RTMP protocol
    Downloads: 0 This Week
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  • 22
    LibNetBlock - A Network Blocking Library

    LibNetBlock - A Network Blocking Library

    A library for blocking access to network on-the-fly

    LibNetBlock is a library that on-the-fly (by preloading) prevents a program under its control to use the network, to help to keep the user's privacy, prevent data leakage and virus spreading. You can think of LibNetBlock as a simple layer-7 (L7) firewall that simply blocks the network access for the program it controls. There is NO NEED to rebuild your software, because LibNetBlock is a pre-loadable library, meaning you just need to RUN the software with LibNetBlock loaded. LibNetBlock is also a development library. See the project homepage https://libnetblock.sourceforge.io and the project Wiki in the menu above.
    Downloads: 0 This Week
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  • 23
    Muduo

    Muduo

    Event-driven network library for multi-threaded Linux server in C++11

    Muduo is a multithreaded C++ network library based on the reactor pattern. Use of this source code is governed by a BSD-style license that can be found in the License file. Requires Linux kernel version equal or above 2.6.28. Tested on Debian 7 and above, Unbuntu 14.04 and above, and CentOS 7 and above. Install required packages Debian, Ubuntu, etc. See .travis.yml for additional packages for building more examples.
    Downloads: 0 This Week
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  • 24

    MySQL Load Balancing PHP script

    MySQL Load Balancing PHP script

    Free MySQL Load Balancing PHP script. For load balanced access to your MySQL servers when you are using MySQL replication between one (or many) master and many slaves. This script does reads on slaves and writes on master(s). It automatically checks if the challenger slave is "fresh enough" to read on it. The script is actually used in real conditions, prove of the capabilities. That also needed from me to erase some sections of the code replaced by a "TODO" commentary with instruction (you will have to adapt those few lines to your conditions). Comes with a mail alert script for errors logging and reporting, really useful for debug issues. Renaud CAMPO
    Downloads: 0 This Week
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  • 25

    NetLink Sockets C++ Library

    Networking/Socket C++ Library.

    NetLink Sockets: Networking C++ Library. Probably the easiest socket C++ library. See the documentation, examples and API reference at http://netlinksockets.sourceforge.net
    Downloads: 0 This Week
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