library
⚡️ The fastest key/value storage for React Native. ~30x faster than AsyncStorage!
MMKV is an efficient, small mobile key-value storage framework developed by WeChat. react-native-mmkv is a library that allows you to easily use MMKV inside your React Native app through fast and direct JS bindings to the native C++ library.
Spire.Doc for Python is a professional Word Python API specifically designed for developers to create, read, write, convert and compare Word documents with fast and high-quality performance.
Related contents:
ExifTool is a platform-independent Perl library plus a command-line application for reading, writing and editing meta information in a wide variety of files. ExifTool supports many different metadata formats including EXIF, GPS, IPTC, XMP, JFIF, GeoTIFF, ICC Profile, Photoshop IRB, FlashPix, AFCP and ID3, Lyrics3, as well as the maker notes of many digital cameras by Apple, Canon, Casio, DJI, FLIR, FujiFilm, GE, Google, GoPro, HP, JVC/Victor, Kodak, Leaf, Minolta/Konica-Minolta, Motorola, Nikon, Nintendo, Olympus/Epson, Panasonic/Leica, Pentax/Asahi, Phase One, Reconyx, Ricoh, Samsung, Sanyo, Sigma/Foveon and Sony.
Related contents:
Useful CSS custom functions using the new @function rule
a streaming JSON parser.
jsonriver is a simple JS library that will parse JSON incrementally as it streams in, e.g. from a network request or a language model. It gives you a sequence of increasingly complete values.
FusionAuth HTTP client and server
A full featured, stand-alone, high-performance HTTP server and client written entirely in plain Java.
Related contents:
Kong is a command-line parser for Go.
Kong aims to support arbitrarily complex command-line structures with as little developer effort as possible.
To achieve that, command-lines are expressed as Go types, with the structure and tags directing how the command line is mapped onto the struct.
The OpenAI .NET library provides convenient access to the OpenAI REST API from .NET applications.
Related contents:
Read and extract text and other content from PDFs in C# (port of PDFBox).
PdfPig supports reading text and content from PDF files. It also supports basic PDF file creation.
Related contents:
Fast, all‑in‑one JavaScript parser and generator for RSS, Atom, RDF, and JSON Feed, with support for popular namespaces and OPML files. Fast, all-in-one parser and generator for RSS, Atom, RDF, and JSON Feed, with support for Podcast, iTunes, Dublin Core, and OPML files.
Feedsmith offers universal and format‑specific parsers that maintain the original feed structure in a clean, object-oriented format while intelligently normalizing legacy elements. Access all feed data without compromising simplicity.
Related contents:
Zero Allocation JSON Logger.
The zerolog package provides a fast and simple logger dedicated to JSON output.
Zerolog's API is designed to provide both a great developer experience and stunning performance. Its unique chaining API allows zerolog to write JSON (or CBOR) log events by avoiding allocations and reflection.
Cross-platform filesystem notifications for Go.
fsnotify is a Go library to provide cross-platform filesystem notifications on Windows, Linux, macOS, BSD, and illumos.
A difference algorithm module for Go. A high-performance difference algorithm module for Go.
Difference algorithms compare two inputs and find the edits that transform one to the other. This is very useful to understand changes, for example when comparing a test result with the expected result or to understand which changes have been made to a file.
Related contents:
Nixago is a flake library for generating configuration files. It's primarily geared towards reducing the clutter at the root of your repository added by various development tools (i.e., formatters, linters, etc.). However, Nixago is flexible enough to generate configuration files for most scenarios.
a fast golang HTML sanitizer (inspired by the OWASP Java HTML Sanitizer) to scrub user generated content of XSS.
bluemonday takes untrusted user generated content as an input, and will return HTML that has been sanitised against an allowlist of approved HTML elements and attributes so that you can safely include the content in your web page.
Related contents:
A fast compressor/decompressor.
Snappy is a compression/decompression library. It does not aim for maximum compression, or compatibility with any other compression library; instead, it aims for very high speeds and reasonable compression. For instance, compared to the fastest mode of zlib, Snappy is an order of magnitude faster for most inputs, but the resulting compressed files are anywhere from 20% to 100% bigger. On a single core of a Core i7 processor in 64-bit mode, Snappy compresses at about 250 MB/sec or more and decompresses at about 500 MB/sec or more.
A tiny Kotlin Multiplatform library that provides an Omittable type to be used in cases where the absence of a value is semantically different from a null value.
Related contents:
Knockout makes it easier to create rich, responsive UIs with JavaScript.
Knockout is a JavaScript MVVM (a modern variant of MVC) library that makes it easier to create rich, desktop-like user interfaces with JavaScript and HTML. It uses observers to make your UI automatically stay in sync with an underlying data model, along with a powerful and extensible set of declarative bindings to enable productive development.
Related contents:
JavaScript API for Chrome and Firefox.
Puppeteer is a JavaScript library which provides a high-level API to control Chrome or Firefox over the DevTools Protocol or WebDriver BiDi. Puppeteer runs in the headless (no visible UI) by default.
Related contents:
Forecasting at scale.
Tool for producing high quality forecasts for time series data that has multiple seasonality with linear or non-linear growth.
Prophet is a procedure for forecasting time series data based on an additive model where non-linear trends are fit with yearly, weekly, and daily seasonality, plus holiday effects. It works best with time series that have strong seasonal effects and several seasons of historical data. Prophet is robust to missing data and shifts in the trend, and typically handles outliers well.
Related contents:
A set of Swift libraries for parsing, inspecting, generating, and transforming Swift source code.
The swift-syntax package is a set of libraries that work on a source-accurate tree representation of Swift source code, called the SwiftSyntax tree. The SwiftSyntax tree forms the backbone of Swift’s macro system – the macro expansion nodes are represented as SwiftSyntax nodes and a macro generates a SwiftSyntax tree to be inserted into the source file.
Related contents:
A Swift library for uncertainty-aware programming.
A Swift library for uncertainty-aware programming, which is especially useful for making reliable decisions with noisy, error-prone, or incomplete data.
Related contents:
TypeScript library for regex equivalence, intersection, complement and other utilities that go beyond string matching.
Zero-dependency TypeScript library for regex utilities that go beyond string matching. These are surprisingly hard to come by for any programming language. ✨
⚡ UUIDv47 = v4 privacy + v7 performance UUIDv7-in / UUIDv4-out (SipHash-masked timestamp).
uuidv47 lets you store sortable UUIDv7 in your database while emitting a UUIDv4-looking façade at your API boundary. It does this by XOR-masking only the UUIDv7 timestamp field with a keyed SipHash-2-4 stream tied to the UUID’s own random bits.
All PHP functions, rewritten to throw exceptions instead of returning false.
Most PHP core functions were written before exception handling was added to the language. Therefore, most PHP functions do not throw exceptions. Instead, they return false in case of error.
Safe-PHP redeclares all core PHP functions. The new PHP functions act exactly as the old ones, except they throw exceptions properly when an error is encountered. The "safe" functions have the same name as the core PHP functions, except they are in the Safe namespace.
The easiest way to build interactive medical imaging web applications. Supported by the Open Health Imaging Foundation.
Cornerstone is a set of JavaScript libraries that can be used to build web-based medical imaging applications. It provides a framework to build radiology applications such as the OHIF Viewer.
Semantic Data Processing. Build data processing and data analysis pipelines that leverage the power of LLMs 🧠
Semlib is a Python library for building data processing and data analysis pipelines that leverage the power of large language models (LLMs). Semlib provides, as building blocks, familiar functional programming primitives like map, reduce, sort, and filter, but with a twist: Semlib's implementation of these operations are programmed with natural language descriptions rather than code. Under the hood, Semlib handles complexities such as prompting, parsing, concurrency control, caching, and cost tracking.
Up to 100x faster strings for C, C++, CUDA, Python, Rust, Swift, JS, & Go, leveraging NEON, AVX2, AVX-512, SVE, GPGPU, & SWAR to accelerate search, hashing, sorting, edit distances, sketches, and memory ops 🦖
Related contents:
Safe deep property access in 120 bytes. x = dlv(obj, 'a.b.x').
Safely get a dot-notated path within a nested object, with ability to return a default if the full key path does not exist or the value is undefined
Related contents:
Relocate resource intensive third-party scripts off of the main thread and into a web worker. 🎉
Partytown is a lazy-loaded library to help relocate resource-intensive scripts into a web worker, and off of the main thread. Its goal is to help speed up sites by dedicating the main thread to your code, and offloading third-party scripts to a web worker.
Related contents:
Python Data Analysis Library.
pandas is a fast, powerful, flexible and easy to use open source data analysis and manipulation tool. Flexible and powerful data analysis / manipulation library for Python, providing labeled data structures similar to R data.frame objects, statistical functions, and much more
Related contents:
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.
Related contents:
💫 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.
Related contents:
libcaca is a graphics library that outputs text instead of pixels, so that it can work on older video cards or text terminals.
Related contents:
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.
Related contents:
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.
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).
Related contents:
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.
Related contents:
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.
Related contents:
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!)