Eduardo Lopes

visibility-polygon-js. This library can be used to construct a visibility polygon for a set of line segments.

codiff. a fast local diff viewer

tsz. A performance-first TypeScript checker

unovis. Modular data visualization framework for React, Angular, Svelte, Vue, and vanilla TypeScript or JavaScript

chrono. A natural language date parser in Javascript

warp. Warp is an agentic development environment, born out of the terminal.

FastNoiseLite. Fast Portable Noise Library - C# C++ C Java HLSL GLSL JavaScript Rust Go

sal. 🚀 Performance focused, lightweight scroll animation library 🚀

layerchart. Composable Svelte chart components to build a large variety of visualizations

svelte-ux. Collection of Svelte components to build highly interactive applications.

vitest-browser-svelte. Render Svelte components in Vitest Browser Mode

vanilla-calendar-pro. The Vanilla Calendar Pro is a versatile JavaScript date and time picker component with TypeScript support, making it compatible with any JavaScript frameworks and libraries. It is designed to be lightweight, easy to use, and feature-rich, without relying on external dependencies.

difftastic. a structural diff that understands syntax 🟥🟩

gumtree. An awesome code differencing tool

orion-ui. ✨ Another simple yet powerful UI framework

magicui. UI Library for Design Engineers. Animated components and effects you can copy and paste into your apps. Free. Open Source.

astro-table-of-contents. Astro Table of Contents - Integration for astro that automatically adds a table of contents

astro-selfie. Astro integration to generate page screenshots to show as Open Graph images

xyflow. React Flow | Svelte Flow - Powerful open source libraries for building node-based UIs with React (https://reactflow.dev) or Svelte (https://svelteflow.dev). Ready out-of-the-box and infinitely customizable.

mermaid. Svelte Mermaid Renderer

reshaped. Reshaped provides accessible React and Figma components for building beautiful products or starting your own design system

marko. A declarative, HTML-based language that makes building web apps fun

glance. A self-hosted dashboard that puts all your feeds in one place

react-query-key-manager. Type-safe, namespaced query key manager for TanStack Query. Prevents collisions, improves discoverability, and enforces strict argument types — all with zero runtime overhead.

supertest. 🕷 Super-agent driven library for testing node.js HTTP servers using a fluent API. Maintained for @forwardemail, @ladjs, @spamscanner, @breejs, @cabinjs, and @lassjs.

node-jsonwebtoken. JsonWebToken implementation for node.js http://self-issued.info/docs/draft-ietf-oauth-json-web-token.html

node-argon2. Node.js bindings for Argon2 hashing algorithm

nervemq. Portable, SQS-compatible message queue backed by SQLite

resvg. An SVG rendering library.

Symphonia. Pure Rust multimedia format demuxing, tag reading, and audio decoding library

whatbpm. 💓 Today's Trending Values for EDM Production

dano. A hashdeep/md5tree (but much more) for media files

fluent-state. Fluent, reactive & immutable local state management for React.

tauri-specta. Completely typesafe Tauri commands

specta. Easily export your Rust types to other languages

TauRPC. Typesafe IPC layer for Tauri applications

svg-pan-zoom. JavaScript library that enables panning and zooming of an SVG in an HTML document, with mouse events or custom JavaScript hooks

llm-ui. The React library for LLMs

lazygit. simple terminal UI for git commands

Cap. Open source Loom alternative. Beautiful, shareable screen recordings.

kubb. 🧡 The meta framework for code generation. Automate OpenAPI to type-safe TypeScript, Zod, and TanStack Query with a modular, plugin-based engine.

ink. 🌈 React for interactive command-line apps

open-llms. 📋 A list of open LLMs available for commercial use.

react-bits. An open source collection of animated, interactive & fully customizable React components for building memorable websites.

nuqs. Type-safe search params state manager for React frameworks - Like useState, but stored in the URL query string.

gitdiagram. Free, simple, fast interactive diagrams for any GitHub repository

chevrotain. Parser Building Toolkit for JavaScript

docking. DocKing: Your shared-microservice that takes over the document templates management & render/export PDF

ts-runtime-checks. A typescript transformer that automatically generates validation code from your types.

leptos. Build fast web applications with Rust.

every-programmer-should-know. A collection of (mostly) technical things every software developer should know about

tweakpane. :control_knobs: Compact GUI for fine-tuning parameters and monitoring value changes

ts-rs. Generate TypeScript bindings from Rust types

orval. orval is able to generate client with appropriate type-signatures (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification, either in yaml or json formats. 🍺

monicon. Universal Icon Library

Canvas-Txt. Multiline text on HTML5 Canvas

vitest-matchmedia-mock. mockable window matchmedia

screenshot-to-code. Drop in a screenshot and convert it to clean code (HTML/Tailwind/React/Vue)

svelte-exmarkdown. Svelte component to render markdown.

docs. Sigstore documentation

awesome-mac.  This project is dedicated to collecting high-quality macOS software and organizing them systematically by different categories for easy search and use.

gitbutler. The GitButler version control client, backed by Git, powered by Tauri/Rust/Svelte

rolldown. Fast Rust bundler for JavaScript/TypeScript with Rollup-compatible API.

git-fame. :star: Pretty-print `git` repository collaborators sorted by contributions

changesets-changelog-github-compact. a changelog generator for changesets based on the official changelog-github generator but more compact

oxc. ⚓ A collection of high-performance JavaScript tools.

tabbable. Find descendants of a DOM node that are in the tab order

FlappyBird. Less than 100 Kilobytes. Works for Android 5.0 and above

focus-trap. Trap focus within a DOM node.

open-ui. Maintain an open standard for UI and promote its adherence and adoption.

instant. Instant is the best backend for AI-coded apps. You get auth, permissions, storage, presence, and streams — everything you need to ship apps your users will love.

react-mosaic. A React tiling window manager

vike. (Replaces Next.js/Nuxt) 🔨 Build mission-critical applications with stability and development freedom.

farm. Extremely fast Vite-compatible web build tool written in Rust

capsize. Flipping how we define typography in CSS.

leading-trim. Strip out spacing above and below the first and last lines of a text block

basekick. Typographical baselines for CSS

mantine. A fully featured React components library

swapy. ✨ A framework-agnostic tool that converts any layout into a drag-to-swap one with just a few lines of code https://swapy.tahazsh.com/

conform. Progressively enhance HTML forms with React. Build resilient, type-safe forms with no hassle using web standards.

zed. Code at the speed of thought – Zed is a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.

effect. Build production-ready applications in TypeScript

valibot. The modular and type safe schema library for validating structural data 🤖

publint. Lint packaging errors

pico. Minimal CSS Framework for semantic HTML

leonardo. Generate colors based on a desired contrast ratio

penpot. Penpot: The open-source design platform for Product teams that need scalable collaboration.

penpot-files. Publicly released files and assets of Penpot, The Open-Source design & prototyping platform

unit. Next Generation Visual Programming System

baklavajs. Graph / node editor in the browser using VueJS

lost. LostGrid is a powerful grid system built in PostCSS that works with any preprocessor and even vanilla CSS.

BibliotecaDev. 📚 Biblioteca de livros essenciais da área da programação. (Confira o meu novo projeto `SendScriptWhatsapp`)

css-hooks. The styling system that supercharges native inline styles with pseudo-classes, responsive queries, and advanced selector logic.

melt-ui. A set of headless, accessible component builders for Svelte.

linaria. Zero-runtime CSS in JS library

swagger-typescript-api. Generate the API Client for Fetch or Axios from an OpenAPI Specification

orbit. Collection of useful integrations & components for the Astro ecosystem. ⭐️ Star to support our work!

dark-mode-toggle. 🌓 A dark mode toggle component for React.

rinha-de-compiler. 🥖 | Rinha de compiladores (ou interpretadores kkkk

stylis. light – weight css preprocessor

arktype. TypeScript's 1:1 validator, optimized from editor to runtime

zodios. typescript http client and server with zod validation

just. A library of dependency-free JavaScript utilities that do just one thing.

radix-svelte. A port of Radix UI for Svelte

svelte-french-toast. 🍞🥂 Buttery smooth toast notifications for Svelte

yesvelte. YeSvelte UI component library for Svelte

bling. 💍 Framework agnostic transpilation utilities for client/server RPCs, env isolation, islands, module splitting, and more.

scrollerful. Small JS & CSS library for scroll animations

popmotion. Simple animation libraries for delightful user interfaces

lucia. Authentication, simple and clean

semantic-release. :package::rocket: Fully automated version management and package publishing

react-ts-form. TypeScript

coding-interview-university. A complete computer science study plan to become a software engineer.

the-art-of-command-line. Master the command line, in one page

vuestic-ui. Vuestic UI is an open-source Vue 3 component library designed for rapid development, easy maintenance, and high accessibility. Maintained by Epicmax (@epicmaxco).

trpc. 🧙‍♀️ Move Fast and Break Nothing. End-to-end typesafe APIs made easy.

phero. Full-stack type-safety with pure TypeScript

typebox. JSON Schema Type Builder with Static Type Resolution for TypeScript

clack. Effortlessly build beautiful command-line apps

aicommits. A CLI that writes your git commit messages for you with AI

hooks. A high-quality & reliable React Hooks library. https://alibaba.github.io/hooks/

motion-canvas. Visualize Your Ideas With Code

superjson. Safely serialize JavaScript expressions to a superset of JSON, which includes Dates, BigInts, and more.

gitoxide. An idiomatic, lean, fast & safe pure Rust implementation of Git

include-media. 📐 Simple, elegant and maintainable media queries in Sass

comprehensive-rust. This is the Rust course used by the Android team at Google. It provides you the material to quickly teach Rust.

Civet. A TypeScript superset that favors more types and less typing

casl. CASL is an isomorphic authorization JavaScript library which restricts what resources a given user is allowed to access

cachified. 🤑 wrap virtually everything that can store by key to act as cache with ttl/max-age, stale-while-validate, parallel fetch protection and type-safety support

rapier. 2D and 3D physics engines focused on performance.

box2d.js. Port of Box2D to JavaScript using Emscripten

yjs. Shared data types for building collaborative software

valtio. 🧙 Valtio makes proxy-state simple for React and Vanilla

TypeRunner. High-performance TypeScript compiler

neodrag. One Draggable to rule them all 💍

react-number-format. React component to format numbers in an input or as a text.

jotai-tanstack-query. Jotai integration library for TanStack Query

axum. HTTP routing and request-handling library for Rust that focuses on ergonomics and modularity

tokencss. TypeScript

webc. Single File Web Components

re-resizable. 📏 A resizable component for React.

vitebook. Blazing fast alternative to Storybook.

jotai. 👻 Primitive and flexible state management for React

nanostores. A tiny (340 bytes) state manager for React/RN/Preact/Vue/Svelte with many atomic tree-shakable stores

novu. The open-source communication infrastructure for agents and products

immer. Create the next immutable state by mutating the current one

deepkit-openapi. Deepkit OpenAPI Integration

remeda. A utility library for JavaScript and TypeScript.

fnapi. A function is enough

build-your-own-x. Master programming by recreating your favorite technologies from scratch.

react-timeline-range-slider. JavaScript

plantarium. Create plants in your browser using nodes. Next version at https://github.com/jim-fx/nodarium

jak-project. Reviving the language that brought us the Jak & Daxter Series

react-swipeable-bottom-sheet. A swipeable material's bottom sheet implementation, using react-swipeable-views

vue-currency-input. Easy input of currency formatted numbers for Vue.js.

rustlings. :crab: Small exercises to get you used to reading and writing Rust code!

rsuite. 🧱 A suite of React components .

MarkovJunior. Probabilistic language based on pattern matching and constraint propagation, 153 examples

ladle. 🥄 Develop, test and document your React story components faster.

histoire. ⚡ Fast and beautiful interactive component playgrounds, powered by Vite

ajv. The fastest JSON schema Validator. Supports JSON Schema draft-04/06/07/2019-09/2020-12 and JSON Type Definition (RFC8927)

tsoa. Build OpenAPI-compliant REST APIs using TypeScript and Node

lineup-lite. LineUp-lite is an extension of the excellent react-table library for rendering beautiful interactive table visualizations based on the LineUp ranking visualization technique.

quads. Rust and wasm quadtree art

tsup. The simplest and fastest way to bundle your TypeScript libraries.

papanasi. 🥯Papanasi is the Frontend UI library to use cross Frameworks. A set of components to use in Angular, Preact, Qwik, React, Solid, Svelte, Vue and Web Components

docz. ✍ It has never been so easy to document your things!

qwik. Instant-loading web apps, without effort

auto-animate. A zero-config, drop-in animation utility that adds smooth transitions to your web app. You can use it with React, Vue, or any other JavaScript application.

Equal. Equal UI is a Vue 3 UI library empowered by Tailwindcss

mitosis. Write components once, run everywhere. Compiles to React, Vue, Qwik, Solid, Angular, Svelte, and more.

use-context-selector. React useContextSelector hook in userland

formkit. The form framework for coding agents

react-jsonschema-form. A React component for building Web forms from JSON Schema.

type-fest. A collection of essential TypeScript types

floating-ui. A JavaScript library to position floating elements and create interactions for them.

virtual. 🤖 Headless UI for Virtualizing Large Element Lists in JS/TS, React, Solid, Vue and Svelte

primitives. Radix Primitives is an open-source UI component library for building high-quality, accessible design systems and web apps. Maintained by @workos.

supabase. The Postgres development platform. Supabase gives you a dedicated Postgres database to build your web, mobile, and AI applications.

iview. A high quality UI Toolkit built on Vue.js 2.0

bulma. Modern CSS framework based on Flexbox

vuetify. 🐉 Vue Component Framework

jodit. Jodit - Best WYSIWYG Editor for You

depcheck. Check your npm module for unused dependencies

syncpack. Consistent dependency versions in large JavaScript Monorepos.

react-spectrum. A collection of libraries and tools that help you build adaptive, accessible, and robust user experiences.

attractions. [DEPRECATED, see readme] A pretty cool UI kit for Svelte

kit. web development, streamlined

shoelace. Shoelace is now Web Awesome. Come see what’s new!

lexical. Lexical is an extensible text editor framework that provides excellent reliability, accessibility and performance.

mermaid. Generation of diagrams like flowcharts or sequence diagrams from text in a similar manner as markdown

node-restify. The future of Node.js REST development

react-nice-dates. A responsive, touch-friendly, and modular date picker library for React.

yup. Dead simple Object schema validation

react-hook-currency. TypeScript

interactive-geometry. :closed_book: Source code of the interactive book, “Geometry Processing Algorithms”

GFPGAN. GFPGAN aims at developing Practical Algorithms for Real-world Face Restoration.

juice. Juice inlines CSS stylesheets into your HTML source.

BorrowScript. TypeScript with a Borrow Checker. Multi-threaded, Tiny binaries. No GC. Easy to write.

kontrolio. Time tracking through your CLI.