Open Source Libraries - Page 23
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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. -
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Mundane
Mundane is a Rust cryptography library backed by BoringSSL
Mundane is a Rust cryptography library designed to be safe, ergonomic, and high-performance, with its cryptographic operations powered by BoringSSL. It aims to eliminate common security pitfalls by providing APIs that are intentionally difficult to misuse, prioritizing safety and correctness over flexibility. The library vendors its own copy of BoringSSL, ensuring consistent builds without external dependencies and avoiding symbol conflicts between different versions. Mundane emphasizes clarity in its cryptographic abstractions, making it accessible to developers while maintaining robust security guarantees. It is ideal for projects that need reliable, production-grade cryptography built directly on top of proven, well-tested C libraries. -
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Music Assistant
Music Assistant is a free, opensource Media library manager
Music Assistant Server is the core backend for Music Assistant, a free and open-source music library manager for local and online music sources. It connects streaming services, local files, metadata providers, and many speaker ecosystems into one centralized music system. The server is designed to run on an always-on device such as a Raspberry Pi, NAS, Intel NUC, or similar home server. It can work as a standalone product, but it is especially tailored for Home Assistant users who want automation, voice control, and smart-home playback workflows. Music Assistant supports features such as library matching, metadata enrichment, gapless playback, crossfade, volume normalization, synchronized playback, announcements, and queue transfers. It is a strong choice for users who want one organized media layer across different music services and playback devices. -
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NSync
nsync is a C library that exports various synchronization primitives
nsync is a portable C library that provides a collection of advanced synchronization primitives designed to facilitate safe and efficient multithreaded programming. It offers reader-writer locks, condition variables, run-once initialization, waitable counters, and waitable bits for coordination and cancellation between threads. Unlike traditional pthreads-based synchronization, nsync introduces conditional critical sections, allowing developers to wait for arbitrary conditions without explicit signaling or complex loop-based logic. This approach simplifies concurrency management and often improves readability and maintainability of multithreaded code. The library emphasizes efficiency, with locks and condition variables occupying minimal memory and supporting cancellation mechanisms through nsync_note objects rather than thread-level cancellation. Designed with portability and performance in mind, nsync can be compiled on Unix-like systems and Windows using a C90 compiler. -
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Nitro Modules
Insanely fast native C++, Swift or Kotlin modules
Nitro is a React Native native-module system for building very fast C++, Swift, and Kotlin modules with statically compiled bindings to JSI. It is designed to reduce runtime overhead by generating type converters ahead of time instead of relying on dynamic lookups. The project consists of the core react-native-nitro-modules library and the optional nitrogen code generator for module authors. Developers define interfaces in TypeScript and implement the native behavior in C++, Swift, Kotlin, or Java. Nitro supports cross-platform C++ modules as well as platform-native iOS and Android implementations. It is useful for React Native teams that need high-performance native functionality, strongly typed bindings, and lower bridge overhead. -
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NodeGoat
The OWASP NodeGoat project
A deliberately vulnerable Node.js application designed for security training, helping developers understand common web vulnerabilities and how to mitigate them. -
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NumCpp
C++ implementation of the Python Numpy library
A Templatized Header Only C++ Implementation of the Python NumPy Library. The main data structure in NumCpp is the NdArray. It is inherently a 2D array class, with 1D arrays being implemented as 1xN arrays. There is also a DataCube class that is provided as a convenience container for storing an array of 2D NdArrays, but it has limited usefulness past a simple container. -
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OCaml
The core OCaml system: compilers, runtime system, base libraries
OCaml is a general-purpose, industrial-strength programming language with an emphasis on expressiveness and safety. OCaml’s powerful type system means more bugs are caught at compile-time, and large, complex codebases are easier to maintain. This makes it a good language for running critical code. At the same time, sophisticated inference makes the type system unobtrusive, creating a smooth developer experience. OCaml has two compilers. One is a bytecode compiler that generates small, portable executables and is very fast. The other is a native code compiler that produces more efficient machine code; its performance matches the highest standards of modern compilers. OCaml has great support for the most popular editors. VS Code is recommended for beginners, and for power users there is deep integration with Vim and Emacs. OCaml has a rich and dynamic community and best-in-class tooling. -
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OCaml Jupyter
An OCaml kernel for Jupyter (IPython) notebook
An OCaml kernel for Jupyter Notebook. This provides an OCaml REPL with a great user interface such as markdown/HTML documentation, LaTeX formula by MathJax, and image embedding. OCaml Jupyter requires the libraries zlib, libffi, libgmp, libzmq 5+. -
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Ollama Python
Ollama Python library
ollama-python is an open-source Python SDK that wraps the Ollama CLI, allowing seamless interaction with local large language models (LLMs) managed by Ollama. Developers use it to load models, send prompts, manage sessions, and stream responses directly from Python code. It simplifies integration of Ollama-based models into applications, supporting synchronous and streaming modes. This tool is ideal for those building AI-driven apps with local model deployment. -
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PHPWord
PHP library for reading and writing word processing documents
PHPWord is a library written in pure PHP that provides a set of classes to write to and read from different document file formats. The current version of PHPWord supports Microsoft Office Open XML (OOXML or OpenXML), OASIS Open Document Format for Office Applications (OpenDocument or ODF), and Rich Text Format (RTF). PHPWord is an open source project licensed under the terms of LGPL version 3. PHPWord is aimed to be a high quality software product by incorporating continuous integration and unit testing. Set document properties, e.g. title, subject, and creator. Create document sections with different settings, e.g. portrait/landscape, page size, and page numbering. Create header and footer for each sections, set default font type, font size, and paragraph style. Use UTF-8 and East Asia fonts/characters. Define custom font styles (e.g. bold, italic, color) and paragraph styles (e.g. centered, multicolumns, spacing) either as named style or inline in text. -
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PageIndex
Document Index for Vectorless, Reasoning-based RAG
PageIndex is an innovative open-source framework that reimagines retrieval-augmented generation (RAG) by eliminating conventional vector similarity search and instead building hierarchical semantic indexes that mirror a document’s natural structure. Rather than chunking text and embedding it into a vector database, PageIndex constructs a tree-structured index — similar to a detailed, AI-enhanced table of contents — that a large language model can traverse to locate the most relevant sections of long documents. This reasoning-driven retrieval aligns more naturally with how humans explore complex texts, improving relevance and traceability, especially in professional domains like financial reports, legal contracts, and technical manuals. The project includes example notebooks, scripts for tree generation and search, and support for multiple document formats including PDF and markdown, with tools designed to preserve context and semantic boundaries. -
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Pannellum
Pannellum is a lightweight, free, and open source panorama viewer
Pannellum is a lightweight, free, and open source panorama viewer for the web. Built using HTML5, CSS3, JavaScript, and WebGL, it is plug-in free. It can be deployed easily as a single file, just 21kB gzipped, and then embedded into pages as an <iframe>. A configuration utility is included to generate the required code for embedding. An API is included for more advanced integrations. -
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Petdex
The public gallery of animated pet for Codex, Claude Code, OpenCode
Petdex is a community system for creating, sharing, installing, and displaying animated pets for the Codex desktop environment. It combines a public gallery, a command-line installer, and a desktop companion app into one coordinated project. The gallery lets users browse approved pet packs, preview animation states, and download compatible assets. The CLI installs pets directly into the local Codex setup and supports submission workflows for creators. The desktop app can float a pet on the user’s screen and react to coding-agent activity in real time. Petdex is especially useful for users who want to personalize AI coding sessions with lightweight animated characters and a community-driven asset format. -
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Phonelib
Ruby gem for phone validation and formatting
Phonelib is a Ruby gem that provides phone number validation and formatting capabilities by leveraging Google's libphonenumber library. It enables developers to parse, validate, and format international phone numbers within Ruby applications. -
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Professional Services
Common solutions and tools developed by Google Cloud
Professional Services repository is a collection of real-world solutions, tools, and reference implementations developed by Google Cloud’s Professional Services team to address common enterprise challenges. Unlike simple sample repositories, it focuses on production-oriented use cases such as data pipelines, machine learning workflows, infrastructure automation, and security management. The repository contains a wide variety of projects, including tools for validating data migrations, generating large datasets for testing, building analytics dashboards, and automating policy enforcement in cloud environments. These solutions are intended to serve as blueprints that organizations can adapt and extend for their own needs rather than turnkey products. It also includes reusable utilities, helper scripts, and example architectures that demonstrate best practices for building scalable and maintainable systems on Google Cloud. -
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Proxmox
Proxmox VE Helper-Scripts
Proxmox VE Helper-Scripts is a community-driven collection of scripts designed to simplify the deployment and management of containers and virtual machines in Proxmox Virtual Environment (VE). These scripts provide an interactive setup process where users can choose between basic configurations that follow defaults or advanced configurations that allow for detailed customization. By automating repetitive and complex tasks, the project helps homelab enthusiasts, self-hosters, and system administrators save time while ensuring consistency in their Proxmox environments. Users can quickly spin up Linux containers (LXC) or full VMs with tailored options, making the project valuable for both newcomers and experienced Proxmox users. Though the repository has been archived, its development continues at a new community home, ensuring the scripts remain actively maintained. -
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PyJNIus
Access Java classes from Python
Pyjnius is a Python library for accessing Java classes. A Python module to access Java classes as Python classes using the Java Native Interface (JNI). Warning: the pypi name is now pyjnius instead of jnius. When you use autoclass, it will discover all the methods and fields of the class and resolve them. You can use the signatures method of JavaMethod and JavaMultipleMethod, to inspect the discovered signatures of a method of an object. -
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RSocket
Java implementation of RSocket
Application protocol providing Reactive Streams semantics. 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. By default to make RSocket easier to use it copies the incoming Payload. Copying the payload comes at cost to performance and latency. If you want to use zero copy you must disable this. To disable copying you must include a payloadDecoder argument in your RSocketFactory. This will let you manage the Payload without copying the data from the underlying transport. You must free the Payload when you are done with them or you will get a memory leak. Used correctly this will reduce latency and increase performance. -
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RateIt
Rating plugin for jQuery. Fast, Progressive enhancement, touch support
Rating plugin for jQuery. Fast, Progressive enhancement, touch support, customizable (just swap out the images, or change some CSS), Unobtrusive JavaScript (using HTML5 data-* attributes), RTL support, supports as many stars as you'd like, and also any step size. Although it does the same job as the rest of the jQuery star rating plugins, the main difference is its simplicity. Most plugins create an element for each (partial) star, be it a div with a star background, or an img tag. Each of these tags gets a hover event, and a click event. And on these hover/click events it has to go and talk to the other stars, telling them to change their state. -
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Recharts
Redefined chart library built with React and D3
A composable charting library built on React components. Quickly build your charts with decoupled, reusable React components. Built on top of SVG elements with a lightweight dependency on D3 submodules. Customize your chart by tweaking component props and passing in custom components. -
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Reshaped
Professionally crafted React & Figma components
Reshaped is a professionally crafted design system and component library that bridges design and development by combining React components with a synchronized Figma library. It is designed to help teams build scalable, consistent user interfaces by providing a shared source of truth between designers and developers. The library includes a wide range of production-ready components, from basic inputs and buttons to more complex elements such as tables, calendars, and data visualization tools. A key strength of Reshaped is its emphasis on accessibility, responsiveness, and theming, ensuring that interfaces meet modern usability standards while remaining adaptable to different product needs. The project is structured into multiple packages, including styled components, headless components, and framework-agnostic utilities, allowing developers to choose the level of abstraction that best fits their workflow. -
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Resty
Simple HTTP and REST client library for Go
Simple HTTP and REST client library for Go (inspired by Ruby rest-client). Features section describes in detail about Resty capabilities. Request URL Path Params (aka URI Params). Backoff Retry Mechanism with retry condition function reference. Resty client HTTP & REST Request and Response middleware. Request.SetContext supported. Authorization option of BasicAuth and Bearer token. Set request ContentLength value for all request or particular request. Custom Root Certificates and Client Certificates. Download/Save HTTP response directly into File, like curl -o flag. See SetOutputDirectory & SetOutput. Cookies for your request and CookieJar support. SRV Record based request instead of Host URL. Client settings like Timeout, RedirectPolicy, Proxy, TLSClientConfig, Transport, etc. Optionally allows GET request with payload, see SetAllowGetMethodPayload. Supports registering external JSON library into resty, see how to use. Exposes Response reader without reading response. -
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RetroLab
JupyterLab distribution with a retro look and feel
RetroLab (also known as JupyterLab Retro, previously called JupyterLab Classic) is a JupyterLab distribution with a retro look and feel, more similar to the classic Jupyter notebook. -
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Rime ICE
rime-ice is a highly optimized schema for the RIME input method
rime-ice is a highly optimized schema for the RIME (中州韻) input method engine, offering a clean, intelligent, and efficient Chinese input experience. Built with modular configuration files and designed for performance, rime-ice provides powerful input suggestions, simplified vocabulary, and flexible customization, catering to users who want a streamlined and practical Chinese typing setup.
