library
Build integrations with AI. Integrations for your products & agents
Connect your product & agents to 900+ APIs, on infrastructure built for scale.
Nango is an open-source platform for building product integrations. It supports 900+ APIs and works with any backend language, AI coding tool, and agent SDK.
UI Sound Design. 936 Interface Sound Effects.
A tiny, complete library of interface sound effects for web apps, mobile apps, SaaS, education, media, and games. Preview every UI sound in 12 distinct sonic personalities.
textmode.js is a lightweight creative coding library for creating real-time ASCII art on the web.
Modular cross-runtime WebGPU library for shaders, 3D scenes, GPU tensors, neural networks, and math viz.
vgpu is a TypeScript library for WebGPU: typed shader imports, a tiny gpu-first API, and the same code running in the browser, headless Node, and your test suite.
A fast, simple, and embedded key-value store for Rust.
TurboKV is an async embedded key-value database with atomic batches, ordered range scans, configurable durability, compression, and background compaction.
A zero-dep syntax highlighter that uses the CSS Highlights API.
A tiny, dependency-free syntax highlighter for the web.
MicroLighter uses the CSS Custom Highlight API and TextMate grammars. It highlights code without adding a <span> around every token, so your markup stays clean and editable.
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Offline-first SQL sync with Typescript and Rust cores.
Syncular keeps an SQLite database on each client and synchronizes it through a server-owned commit log. Apps read from local SQLite and continue to work offline. A write updates local state immediately, enters an outbox, and is checked by the server when it syncs.
Build Terminal UIs with HTML, CSS and DOM.
TermDOM is a JavaScript library that displays HTML and CSS in the terminal. It draws actual DOM nodes to terminal output and redraws the screen when they mutate, so TUIs and interactive CLIs can be written with vanilla JavaScript or any frontend web framework.
A better way to marshal and unmarshal YAML in Golang.
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PDF structure, built for speed. fast, open-source PDF to Markdown.
A Rust-powered, open-source parser that classifies PDFs and turns native text into clean, position-aware Markdown. Use it from Node.js or the bundled CLI, with packages also available from PyPI and crates.io.
Fast and local neural text-to-speech engine.
A fast and local neural text-to-speech engine that embeds espeak-ng for phonemization.
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turn your Ruby on Rails app into a mobile app.
Ruby Native turns a Rails app into iOS and Android apps. This gem is the Rails-side integration: view helpers, a YAML config file, endpoints auto-mounted at /native, and a CLI for previewing and deploying builds. Full docs, including the complete helper reference and config schema, live at rubynative.com/docs.
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A vector indexing library to bring fast, fresh and filtered search to your database.
DiskANN3 is a composable library for bringing scalable, accurate and cost-effective vector indexing to multiple databases. It draws on research from the DiskANN project.
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Morph any SVG icon into any other. SVG icon morphing library for React, Vue & Svelte.
Animate Lucide, Tabler, Heroicons or any stroke icon set. Optimal rotation solved in closed form, spring physics, zero dependencies.
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Sound effects for the interface, performed live.
Foley is a tiny, dependency-free library of 28 interaction sounds, synthesized live with Web Audio the instant you interact — no audio files, no setup. When the defaults aren’t yours, redesign them and ship a sound set: your product’s sonic identity in one small JSON file.
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Write Native with TypeScript.
Render native platform UI with direct access to native APIs automatically backed by TypeScript. ⚡ Write Native with TypeScript ✨ Best of all worlds (TypeScript, Swift, Objective C, Kotlin, Java, Dart). Use what you love ❤️ Angular, React, Solid, Svelte, Vue with: iOS (UIKit, SwiftUI), Android (View, Jetpack Compose), Flutter and you name it compatible.
NativeScript empowers you to access native APIs from JavaScript directly. Currently iOS, Android, and visionOS runtimes are provided for rich mobile development across a variety of diverse use cases.
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Inferno is an insanely fast, React-like library for building high-performance user interfaces on both the client and server.
The main objective of the InfernoJS project is to provide the fastest possible runtime performance for web applications. Inferno excels at rendering real time data views or large DOM trees.
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An unfaithful port of Linq to Sql to Typescript.
A type-safe query builder for TypeScript. Queries are expressed as inline arrow functions, parsed into an expression tree, and compiled into SQL for PostgreSQL or SQLite. The API is similar to DotNet's LINQ-based frameworks.
Sandboxes for every agent.
The micro-VM for AI agents — light enough to embed on your laptop, elastic enough to power an agentic cloud. A Box is a hardware-isolated micro-VM that runs any OCI image — and it persists. Agents install packages, write files, and resume across turns, never from cold.
Create, calculate, and format money safely
An immutable library for expressing monetary values in JavaScript and TypeScript.
Money is complex, and the primitives of the language aren't enough to properly represent it. Dinero.js is a JavaScript library that lets you express monetary values, but also perform mutations, conversions, comparisons, formatting, and overall make money manipulation easier and safer in your application.
📈 A small, fast chart for time series, lines, areas, ohlc & bars.
uPlot is a fast, memory-efficient Canvas 2D-based chart for plotting time series, lines, areas, ohlc & bars. From a cold start it can create an interactive chart containing 166,650 data points in 25ms, scaling linearly at ~100,000 pts/ms afterwards. In addition to fast initial render, the zooming and cursor performance is by far the best of any similar charting lib; at ~50 KB, it's likely the smallest and fastest time series plotter that doesn't make use of context-limited WebGL shaders or WASM, both of which have much higher startup cost and code size.
Terminal UIs on a Native Zig Core. OpenTUI is a library for building terminal user interfaces (TUIs).
Build rich, interactive terminal interfaces with TypeScript bindings, first-class React/Solid support, and a C ABI for any language.
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An organic glow that hugs the edge of your screen — zero-dependency Canvas 2D engine + React adapter
An organic glow that hugs the edge of your screen.
Knex.js is a batteries-included SQL query builder for JavaScript.
Knex.js (pronounced /kəˈnɛks/) is a "batteries included" SQL query builder for PostgreSQL, CockroachDB, MSSQL, MySQL, MariaDB, SQLite3, Better-SQLite3, Oracle, and Amazon Redshift designed to be flexible, portable, and fun to use.
openpyxl is a Python library to read/write Excel 2010 xlsx/xlsm/xltx/xltm files.
It was born from lack of existing library to read/write natively from Python the Office Open XML format.
All kudos to the PHPExcel team as openpyxl was initially based on PHPExcel.
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PDF Reader in JavaScript.
PDF.js is community-driven and supported by Mozilla. Our goal is to create a general-purpose, web standards-based platform for parsing and rendering PDFs.
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Intercept any app, then call it from Python like a library.
The MapLibre Organization is an umbrella for open-source mapping libraries.
NumPy & SciPy for GPU.
CuPy is a NumPy/SciPy-compatible array library for GPU-accelerated computing with Python. CuPy acts as a drop-in replacement to run existing NumPy/SciPy code on NVIDIA CUDA or AMD ROCm platforms.
@pierre/diffs is an open source diff and code rendering library. It's built on Shiki for syntax highlighting and theming, is super customizable, and comes packed with features. Made with love by The Pierre Computer Company.
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A Positively Charged JavaScript Runtime. A JavaScript Runtime for Rust.
Ion is a JavaScript runtime for integrating a JavaScript engine within a Rust program. This is useful for cases like building out a JavaScript powered plug-in system - but it can also be used directly from a stand alone executable.
A library that unifies the APIs of IndexedDB, localStorage and other storage into a consistent API.
modern storage toolkit that keeps localForage compatibility while using async/await, TypeScript, and zero legacy baggage.
CSS reacts, JS just listens. What JS knows, now CSS knows.
Runtime state for CSS. Now there's a Prop For That. Expose what JavaScript knows but CSS can't see — as live CSS custom properties.
A vector index built on TurboQuant, written in Rust with Python bindings.
A 10 million document corpus takes 31 GB of RAM as float32. turbovec fits it in 4 GB - and searches it faster than FAISS.
turbovec is a Rust vector index with Python bindings, built on Google Research's TurboQuant algorithm — a data-oblivious quantizer that matches the Shannon lower bound on distortion, with no codebook training and no separate train phase.
The web has been silent. tiks makes it sing.
Procedural UI sounds. Zero audio files. Pure synthesis.
A GPU-accelerated UI framework for Zig, targeting macOS (Metal), Linux (Vulkan/Wayland), and Browser (WASM/WebGPU).
Gooey is a hybrid immediate/retained mode UI framework designed for building fast, GPU-rendered applications on macOS/Metal, WebAssembly/WebGPU, and Wayland/Vulkan
Liquid Glass for the Web .
Liquid DOM is a monorepo for WebGPU liquid-glass rendering, React bindings, Three.js integration, React Three Fiber integration, and the renderer-agnostic layout engine used by the higher-level APIs.
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Terminal UIs That Make Java Developers Smile 😊 A Java library for building modern terminal user interfaces.
TamboUI brings the TUI paradigms seen in things like Rust's ratatui or Go's bubbletea to the Java ecosystem.
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A TypeScript/JavaScript library for quickly building performant declarative user interfaces without the use of a virtual DOM.
Reactive UIs in plain TypeScript. Simple to learn, fast to ship.
Aberdeen wraps your state in ES6 Proxy objects for fine-grained property access tracking, then automatically re-executes only the DOM-building closures that depend on changed data. So we get precise DOM updates with neither virtual DOM diffing nor compiler magic.
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Orchestrate sandboxed coding agents in TypeScript with sandcastle.run().
A TypeScript library for orchestrating AI coding agents in isolated sandboxes.
Zero-dependency spreadsheet engine — XLSX, CSV, ODS, JSON, NDJSON, XML.
Schema validation, streaming, round-trip preservation. Pure TypeScript, works everywhere.
🍫 Tastier cookies, local, session, and db storage in a tiny package. Includes subscribe() events for changes.
Modular and type-safe forms
Build your next form with Formisch, the open source form library with performance, type safety and bundle size in mind. The lightweight, schema-first, and fully type-safe form library for React, Solid, Vue, Svelte and more.
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HTTP Idempotency Middleware for Laravel applications.
Laravel Idempotency helps you safely retry write-oriented HTTP requests without performing the same work twice. When a POST, PUT, or PATCH request is sent again with the same idempotency key and the same request data, the package replays the original response instead of executing your route again.
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High-performance asymmetric lossless compression. 40%+ faster decompression than LZ4 on ARM64 with better compression ratios. Optimized for Game Assets, Firmware & App Bundles.
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A file tree rendering library
@pierre/trees is an open source file tree rendering library. It's built for performance and flexibility, is super customizable, and comes packed with features.
The library for faithful browser automation. High-fidelity fingerprinting for Bun, engineered for consistency and transparency.
mochi.js is a Bun-native, raw-CDP browser automation framework. Pass a seed and a profile; get a relationally-coherent fingerprint that survives a getParameter(0x9245) probe. JIT-friendly inject payload, Chromium-native fetch (real Chrome JA4 by definition), behavioral synth on top of Bezier+Fitts. Leaves no crumbs.
Paramiko is a pure-Python implementation of the SSHv2 protocol, providing both client and server functionality. It provides the foundation for the high-level SSH library Fabric, which is what we recommend you use for common client use-cases such as running remote shell commands or transferring files.
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libglnx is a utility library for GNOME C projects that provides fd-based filesystem operations as its primary API. Functions like glnx_openat_rdonly, glnx_file_replace_contents_at, and glnx_tmpfile_link_at all take directory fds and operate relative to them. The library is built around the discipline of “always have an fd, never use an absolute path when you can use an fd.
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Gopacket is a clean Go implementation of Impacket, a library intended for working with network protocols.
A complete Go implementation of Impacket - 63 tools and 24 library packages for Windows network protocol interaction, Active Directory enumeration, and attack execution. Built as a native Go framework so you can compile once and run anywhere without Python dependencies.
🪇 Minimal terminal spinners for Rust.
Rattles is a minimal, dependency-free terminal spinner library for Rust. It makes no assumptions about how the output will be used.
Node.js antivirus scanning.
Minimal Node.js wrapper around ClamAV — scan any file and get Clean, Malicious, or ScanError. Handles installation and database updates automatically.
Lightweight fuzzy-search library, with zero dependencies.
Fuse.js is a lightweight, zero-dependency fuzzy-search library written in TypeScript. It works in the browser and on the server, and is designed for searching small-to-medium datasets on the client side where you can't rely on a dedicated search backend.
A fast, async-native Django cache backend for Valkey (and Redis). Opinionated and secure by default.
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Simple Secure Keeper for Secrets.
Keeper is a cryptographic secret store for Go. It encrypts arbitrary byte payloads at rest using Argon2id key derivation and XChaCha20-Poly1305 (default) authenticated encryption, and stores them in an embedded bbolt database.
Components in Markdown.
A fast, streaming-ready markdown parser with component support for Vue, React, Svelte, HTML and ANSI terminal.
Turns any HTML page into clean markdown.
Mozilla Readability algorithm + hickory-to-markdown converter for Babashka.
Turns any HTML page into clean markdown by parsing it with jsoup, scoring content using the Mozilla Readability algorithm, extracting the main article body, and converting the hickory tree to markdown.
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