library
A C++ library for reading MacBook lid angle sensor data, based on reverse engineering of HID device specifications.
A texture utility for Zig.
Games typically ship with a lot of texture data. It may be tempting to ship texture data as images, but image formats are typically a poor representation for texture data.
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💫 Industrial-strength Natural Language Processing (NLP) in Python.
spaCy is a library for advanced Natural Language Processing in Python and Cython. It's built on the very latest research, and was designed from day one to be used in real products.
spaCy comes with pretrained pipelines and currently supports tokenization and training for 70+ languages. It features state-of-the-art speed and neural network models for tagging, parsing, named entity recognition, text classification and more, multi-task learning with pretrained transformers like BERT, as well as a production-ready training system and easy model packaging, deployment and workflow management. spaCy is commercial open-source software, released under the MIT license.
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libcaca is a graphics library that outputs text instead of pixels, so that it can work on older video cards or text terminals.
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a client library for Apple TV and AirPlay devices.
This is an asyncio python library for interacting with Apple TV and AirPlay devices. It mainly targets Apple TVs (all generations), but also support audio streaming via AirPlay to receivers like the HomePod, AirPort Express and third-party speakers. It can act as remote control to the Music app/iTunes in macOS.
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Add React UI components to your AI agent.
A React package for building AI-powered applications with generative UI, where users interact through natural language.
The durable, distributed, and cloud-agnostic queue for Node.js.
Sidequest is a modern, scalable background job processor for Node.js applications. Built with TypeScript and designed for production use, it provides reliable job processing with multiple database backends, a beautiful web dashboard, and comprehensive monitoring capabilities.
A Python library for extracting structured information from unstructured text using LLMs with precise source grounding and interactive visualization.
LangExtract is a Python library that uses LLMs to extract structured information from unstructured text documents based on user-defined instructions. It processes materials such as clinical notes or reports, identifying and organizing key details while ensuring the extracted data corresponds to the source text.
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protocol buffers with small code size.Protocol Buffers for Embedded Systems.
Nanopb is a plain-C implementation of Google's Protocol Buffers data format. It is targeted at 32 bit microcontrollers, but is also fit for other embedded systems with tight (<10 kB ROM, <1 kB RAM) memory constraints.
a go library for parsing command line arguments.
This library provides similar functionality to the builtin flag library of go, but provides much more functionality and nicer formatting. From the documentation:
Package flags provides an extensive command line option parser. The flags package is similar in functionality to the go builtin flag package but provides more options and uses reflection to provide a convenient and succinct way of specifying command line options.
A high-performance Python library for fast, concurrent S3 object downloads.
State-of-the-art JavaScript utility library.
A modern JavaScript utility library that's 2-3 times faster and up to 97% smaller—a major upgrade to lodash.
Say NO to Python fragmentation on sync and async.
This library is designed to solve one of the most important problems in python programming - dividing all written code into 2 camps: sync and async. We get rid of code duplication by using templates.
🕸 WebGL Graph Visualizations for React. WebGL-Powered Open-Source Network Graph Visualization.
a high-performance network graph visualization built in WebGL for React.
any-agent is a Python library providing a single interface to different agent frameworks.
Communicate with an LLM provider using a single interface.
any-llm is a Python library providing a single interface to different llm providers.
Detect agentic coding environments and AI editors.
Detect agentic coding environments and AI assistant tools. This library allows CLI tools and Node apps to detect when they're being executed by AI agents. This enables them to adapt by, for example, providing different output formats or logs.
PHP Secure Communications Library.
Pure-PHP implementations of SSH, SFTP, RSA / DSA / Elliptic Curves, AES / ChaCha20 / etc, X.509
Otter is designed to provide an excellent developer experience while maintaining blazing-fast performance. It aims to address the shortcomings of its predecessors and incorporates design principles from high-performance libraries in other languages (such as Caffeine).
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p2p that just works. Iroh is a library for building on direct connections between devices, putting more control in the hands of your users.
Iroh gives you an API for dialing by public key. You say “connect to that phone”, iroh will find & maintain the fastest connection for you, regardless of where it is.
RE2 is a fast, safe, thread-friendly alternative to backtracking regular expression engines like those used in PCRE, Perl, and Python. It is a C++ library.
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Unobtrusive loggingfor modern JavaScript. Zero dependencies. Universal runtime. Optimized performance. Simple logging library with zero dependencies for Deno, Node.js, Bun, browsers, and edge functions.
LogTape is a logging library for JavaScript and TypeScript. It provides a simple and flexible logging system that is easy to use and easy to extend.
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Build agents that scale with a zero-cost abstraction.
Pickaxe is a simple Typescript library for building AI agents that are fault-tolerant and scalable. It handles the complexities of durable execution, queueing and scheduling, allowing you to focus on writing core business logic. It is not a framework.
Pretty print your Ruby objects with style -- in full color and with proper indentation.
AmazingPrint is a fork of AwesomePrint, which became stale, and should be used in its place to avoid conflicts. It is a Ruby library that pretty prints Ruby objects in full color, exposing their internal structure with proper indentation. Rails ActiveRecord objects and usage within Rails templates are supported via included mixins.
Tiny & fast S3 client for node and edge platforms.
s3mini is an ultra-lightweight Typescript client (~14 KB minified, ≈15 % more ops/s) for S3-compatible object storage. It runs on Node, Bun, Cloudflare Workers, and other edge platforms. It has been tested on Cloudflare R2, Backblaze B2, DigitalOcean Spaces, and MinIO. (No Browser support!)
JavaScript Library for Timezone Lookup by Location.
Fast, memory-efficient time zone estimations from latitude and longitude.
Data validation using Python type hints.
Pydantic is the most widely used data validation library for Python.
Fast and extensible, Pydantic plays nicely with your linters/IDE/brain. Define how data should be in pure, canonical Python 3.9+; validate it with Pydantic.
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CJS/ESM ANSI color library for terminals, CI and Chromium-based browser consoles. Compatible with Bun, Deno, Next.JS.
The library for web and native user interfaces.
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- JUST FUCKING USE REACT.
- Just Use React @ Epic React.
- Reactivity is easy @ romgrk.
- Level Up React: Deep dive into state and useState @ 56kode.
- The History of React Through Code @ Playful Programming.
- React Server Components: How We Got Here @ Epic React.
- The Useless useCallback @ TkDodo's blog.
- Let's Write React Hooks From Scratch @ Playful Programming.
- Unlocking Web Workers with React: A Step-by-Step Guide @ Rahul's Blog.
- React Won by Default – And It's Killing Frontend Innovation @ Loren Stewart.
- React’s useTransition and state update reordering @ Jordan Eldredge.
- Cut styled-components into pieces: This is our last resort @ Sanity.
- You may be looking for a useSyncExternalStore @ swizec.com.
- Stop using .reverse().find(): meet findLast() @ Matt Smith.
- React <ViewTransition>: Smooth Animations Made Simple @ certificates.dev.
- The nuance of React rendering behaviour as it relates to children @ Black Sheep Code.
- Concurrent Hydration with useSyncExternalStore @ kurtextrem.
- Server and Client Component Composition in Practice @ Aurora Scharff.
- State-based vs Signal-based rendering @ Jovi De Croock.
- React Server Components: Do They Really Improve Performance? @ Developer Way.
- Using Atomic State to Improve React Performance in Deeply Nested Component Trees @ Harbor.
- Why startups choose React (and when you shouldn't) @ Evil Martians.
- dead framework theory @ AI Focus.
- Using Atomic State to Improve React Performance in Deeply Nested Component Trees @ Harbor.
- ChatGPT as My Coding Mentor: How I Learned React and Next.js as a Junior Developer @ iO tech_hub.
- Absolutely everything you need to know about act() in React tests @ HowToTestFrontend.
- Why use React? @ adactio.
- The next era of React has arrived: Here’s what you need to know @ LogRocket.
- React has finally solved its biggest problem: The joys of useEffectEvent @ LogRocket.
- useOptimistic Won't Save You @ Colum Kelly.
- Building Bulletproof React Components @ Shu Ding.
- Frontend Memory Leaks: A 500-Repository Static Analysis and Five-Scenario Benchmark Study @ StackInsight.
- Understanding Why React Fiber Exists @ Sanku.
- Start naming your useEffect functions, you will thank me later @ Neciu Dan.
- use(): The Hook That Breaks the Rules (On Purpose) @ Sascha Becker.
- I let React Compiler handle memoization: Here’s what actually broke @ LogRocket.
- React useOptimistic: Optimistic UI Patterns That Actually Work (2026) @ Carlos Oliva Pascual's dev.to.
snapDOM captures HTML elements as images with exceptional speed and accuracy.
OSV is a high-performance CSV parser for Ruby, implemented in Rust. It wraps BurntSushi's excellent csv-rs crate.
It provides a simple interface for reading CSV files with support for both hash-based and array-based row formats.
The array-based mode is faster than the hash-based mode, so if you don't need the hash keys, use the array-based mode.
Predictive Mouse Intent Library. What if we could only prefetch data the user actually needs?
ForesightJS is a JavaScript library that predicts user intent by tracking the mouse. Great for prefetching without wasting resources.
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Build PowerPoint presentations with JavaScript. Works with Node, React, web browsers, and more.
PptxGenJS lets you generate professional PowerPoint presentations in JavaScript - directly from Node, React, Vite, Electron, or even the browser. The library outputs standards-compliant Open Office XML (OOXML).
A Java PDF Library.
The Apache PDFBox® library is an open source Java tool for working with PDF documents. This project allows creation of new PDF documents, manipulation of existing documents and the ability to extract content from documents. Apache PDFBox also includes several command-line utilities. Apache PDFBox is published under the Apache License v2.0.
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An open-source universal messaging library.
ZeroMQ (also known as ØMQ, 0MQ, or zmq) looks like an embeddable networking library but acts like a concurrency framework. It gives you sockets that carry atomic messages across various transports like in-process, inter-process, TCP, and multicast. You can connect sockets N-to-N with patterns like fan-out, pub-sub, task distribution, and request-reply. It's fast enough to be the fabric for clustered products. Its asynchronous I/O model gives you scalable multicore applications, built as asynchronous message-processing tasks. It has a score of language APIs and runs on most operating systems.
Artificial Neural Engine Machine Learning Library.
ANEMLL (pronounced like "animal") is an open-source project focused on accelerating the porting of Large Language Models (LLMs) to tensor processors, starting with the Apple Neural Engine (ANE).
A fast and complete implementation of Markdown in Python.
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Modern Zod-based CLI builder, fully type-safe, super lightweight and flexible.
snapDOM captures DOM nodes as images with exceptional speed avoiding bottlenecks and long tasks.
snapDOM is a high-fidelity DOM capture tool, developed as part of the animation engine I'm developing for Zumly — a framework for creating smooth zoom-based view transitions.
HTML-aware ERB parsing. Powerful and seamless HTML-aware ERB parsing and tooling.
Next-generation HTML+ERB parsing for smarter developer tooling and more. Herb is an HTML-aware Embedded Ruby parsing tool built on Prism, Ruby's official parser.
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🛫 Zero-codegen, no-compile TypeScript type inference from protobuf messages.
protobuf-ts-types lets you define language-agnostic message types in proto format, then infers TypeScript types from them with no additional codegen.
A fluent, modular workflow builder for Laravel that leverages the Pipeline pattern to simplify and organise business logic.
Flows is a lightweight Laravel package designed to turn complex, multi-step business logic into an elegant, maintainable workflow. With a fluent API, you can easily chain steps, incorporate conditional logic, and keep your code modular and testable—perfect for any process that needs a well-orchestrated flow.
TypeScript's 1:1 validator, optimized from editor to runtime.
ArkType is a runtime validation library that parses optimized validators from familiar, type-safe syntax.
It can be used to check external data like JSON payloads or form submissions at the boundaries of your code (similar to Zod or Yup).
Apache ECharts is a powerful, interactive charting and data visualization library for browser.
Apache ECharts is a free, powerful charting and visualization library offering easy ways to add intuitive, interactive, and highly customizable charts to your commercial products. It is written in pure JavaScript and based on zrender, which is a whole new lightweight canvas library.
A Ruby Implementation of the Model Context Protocol.
Connect AI models to your Ruby applications with ease No complex protocols, no integration headaches, no compatibility issues – just beautiful, expressive Ruby code.
Easy to use and powerful fuzzy string matching, port of fuzzywuzzy.
Mostly a JavaScript port of the TheFuzz (formerly fuzzywuzzy) Python library, with some additional features like token similarity sorting and wildcard support.
C Markdown parser. Fast. SAX-like interface. Compliant to CommonMark specification.
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A JS library for predictable and maintainable global state management.
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UI Components Library.
SVAR Core library is a collection of essential UI components written with Svelte.
Alibaba unified front-end form solution
📱🚀 🧩 Cross Device & High Performance Normal Form/Dynamic(JSON Schema) Form/Form Builder -- Support React/React Native/Vue 2/Vue 3.
In React, the whole tree rendering performance problem of the form is very obvious in the controlled mode. Especially for the scene of data linkage, it is easy to cause the page to be stuck. To solve this problem, we have distributed the management of the state of each form field, which significantly improves the performance of the form operations. At the same time, we deeply integrate the JSON Schema protocol to help you solve the problem of back-end driven form rendering quickly.
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This crate aims to be a robust, ergonomic, high performance library for reading OpenType fonts. It is built on top of the read-fonts low level parsing library and is also part of the oxidize project.
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A very complete internationalization library for Lua with LÖVE support 🌕💕
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A delightful Ruby way to work with AI through a unified interface to OpenAI, Anthropic, Google, and DeepSeek. A delightful Ruby way to work with AI. No configuration madness, no complex callbacks, no handler hell – just beautiful, expressive Ruby code.
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Python GUIs for Humans! PySimpleGUI is the top-rated Python application development environment. Launched in 2018 and actively developed, maintained, and supported in 2024. Transforms tkinter, Qt, WxPython, and Remi into a simple, intuitive, and fun experience for both hobbyists and expert users.
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Run JS when a CSS property changes. Any CSS property.
A robust, production-ready library to observe CSS property changes. Detects browser bugs and works around them, so you don't have to.
JSON Formatter, Validator & Viewer Online.
Effortlessly visualize JSON structures as interactive and dynamic tree diagrams.
jsontr.ee is a lightweight JavaScript library that transforms JSON data into beautifully rendered, interactive tree diagrams using SVG. Designed for simplicity and flexibility, it supports both arrays and nested objects, ensuring clear and intuitive visualizations of complex data structures.
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