Relay is a JavaScript framework for building data-driven React applications.

Generate, parse, and enhance JavaScript stack traces in all web browsers

Example code for MFE routing, shared state, build-time & runtime deploy video

Fast drag and drop for any experience on any tech stack

The modern, lightweight, performant, accessible and extensible drag & drop toolkit for React.

Vite Plugin for Module Federation

Code for the state management for Module Federation video

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

Rich-text editor with AI, MCP, and shadcn/ui

The headless rich text editor framework for web artisans.

Apollo Link that performs access tokens (JWT) renew

Streaming, source-agnostic EventSource/Server-Sent Events parser

Copies non-react specific statics from a child component to a parent component

https://www.npmjs.com/package/eslint-config-leozera

A list of awesome ESLint plugins, configs, etc.

📝 Algorithms and data structures implemented in JavaScript with explanations and links to further readings

JSHint is a tool that helps to detect errors and potential problems in your JavaScript code

Explain complex systems using visuals and simple terms. Help you prepare for system design interviews.

Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

Server-Sent Events Gateway by Service Workers

Comlink makes WebWorkers enjoyable.

Examples of how to do query, style, dom, ajax, event etc like jQuery with plain javascript.

ReCA - React Clean Architecture state manager

💾 Offline storage, improved. Wraps IndexedDB, WebSQL, or localStorage using a simple but powerful API.

The Bluesky Social application for Web, iOS, and Android

A tiny (286 bytes) state manager for React/RN/Preact/Vue/Svelte with many atomic tree-shakable stores