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The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.

MIT License

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The library for web and native user interfaces.

react

https://api.github.com/repos/trekhleb/javascript-algorithms/contents/{+path}

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

javascript-algorithms

https://api.github.com/repos/Snailclimb/JavaGuide/contents/{+path}

Java 面试 & 后端通用面试指南，覆盖计算机基础、数据库、分布式、高并发、系统设计与 AI 应用开发

Apache License 2.0

JavaGuide

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javascript

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next.js

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Makes your AI agent think like the laziest senior dev in the room. The best code is the code you never wrote.

ponytail

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Coding articles to level up your development skills

Creative Commons Attribution 4.0 International

30-seconds-of-code

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Node.js JavaScript runtime ✨🐢🚀✨

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node

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three.js

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Set up a modern web app by running one command.

create-react-app

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Material UI: Comprehensive React component library that implements Google's Material Design. Free forever.

material-ui

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24 Lessons, 12 Weeks, Get Started as a Web Developer

Web-Dev-For-Beginners

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Production-grade engineering skills for AI coding agents.

agent-skills

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Clean Code concepts adapted for JavaScript

clean-code-javascript

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uptime-kuma

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svelte

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Taste-Skill - gives your AI good taste. stops the AI from generating boring, generic slop 

taste-skill

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github-readme-stats

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Get a full fake REST API with zero coding in less than 30 seconds (seriously)

json-server

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anime

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reveal.js

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Open-source AI job search: scan job portals, evaluate listings into a structured A-H report with a global 1-5 score, tailor your CV, track applications — runs locally in your AI coding CLI (Claude Code, Codex, OpenCode, Antigravity…)

career-ops

https://api.github.com/repos/expressjs/express/contents/{+path}

Fast, unopinionated, minimalist web framework for node.

express

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uBlock Origin - An efficient blocker for Chromium and Firefox. Fast and lean.

GNU General Public License v3.0

uBlock

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Simple HTML5 Charts using the <canvas> tag

Chart.js

https://api.github.com/repos/asgeirtj/system_prompts_leaks/contents/{+path}

Extracted system prompts from Anthropic - Claude Fable 5.1, Opus 5, Claude Design, Claude Code. OpenAI - ChatGPT GPT-6-Astra, Codex. Google - Gemini 3.8 Flash, 3.1 Pro, Antigravity. xAI - Grok, Grok Bot, Cursor, Kimi and more! Updated regularly.

Creative Commons Zero v1.0 Universal

system_prompts_leaks

https://api.github.com/repos/leonardomso/33-js-concepts/contents/{+path}

📜 33 JavaScript concepts every developer should know.

33-js-concepts

https://api.github.com/repos/Mintplex-Labs/anything-llm/contents/{+path}

Stop renting your intelligence. Own it with AnythingLLM. Everything you need for a powerful local-first agent experience 

anything-llm

https://api.github.com/repos/webpack/webpack/contents/{+path}

A bundler for javascript and friends. Packs many modules into a few bundled assets. Code Splitting allows for loading parts of the application on demand. Through "loaders", modules can be CommonJs, AMD, ES6 modules, CSS, Images, JSON, Coffeescript, LESS, ... and your custom stuff.

webpack

https://api.github.com/repos/gsd-build/get-shit-done/contents/{+path}

A light-weight and powerful meta-prompting, context engineering and spec-driven development system for Claude Code by TÂCHES.

get-shit-done

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drawio-desktop

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Resumes generated using the GitHub informations

resume.github.com

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An advanced guide which might benefit you a lot 🎉 . 韩先凯的人生进阶指南 人生进阶指南 离谱的人生 人生进阶 AI学习 AI指南 韩先凯的AI学习指南 英语学习指南/英语学习教程/英语学习/学英语

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A modern JavaScript utility library delivering modularity, performance, & extras.

lodash

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atom

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Google Chrome, Firefox, and Thunderbird extension that lets you write email in Markdown and render it before sending.

markdown-here

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jquery

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angular.js

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DeepLearning-500-questions

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A professional front-end template for building fast, robust, and adaptable web apps or sites.

html5-boilerplate

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React-based framework with performance, scalability, and security built in.

gatsby

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LeetCode Solutions: A Record of My Problem Solving Journey.( leetcode题解，记录自己的leetcode解题之路。)

leetcode

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pdf.js

https://api.github.com/repos/chinese-poetry/chinese-poetry/contents/{+path}

The most comprehensive database of Chinese poetry 🧶最全中华古诗词数据库,  唐宋两朝近一万四千古诗人,  接近5.5万首唐诗加26万宋诗.  两宋时期1564位词人，21050首词。

chinese-poetry

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Prettier is an opinionated code formatter.

prettier

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⭐️  Companies that don't have a broken hiring process

hiring-without-whiteboards

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Semantic is a UI component framework based around useful principles from natural language.

Semantic-UI

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Marketing skills for Claude Code and AI agents. CRO, copywriting, SEO, analytics, and growth engineering.

marketingskills

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htmx

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dayjs

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Parse, validate, manipulate, and display dates in javascript.

moment

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

react-bits

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Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia)

bruno

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⚡ Serverless Framework – Effortlessly build apps that auto-scale, incur zero costs when idle, and require minimal maintenance using AWS Lambda and other managed cloud services.

serverless

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30 days of JavaScript programming challenge is a step-by-step guide to learn JavaScript programming language in 30 days. This challenge may take more than 100 days,  please just follow your own pace. These videos may help too: https://www.youtube.com/channel/UC7PNRuno1rzYPb1xLa4yktw

30-Days-Of-JavaScript

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monaco-editor

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awesome-cheatsheets

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🍃 JavaScript library for mobile-friendly interactive maps 🇺🇦

BSD 2-Clause "Simplified" License

Leaflet

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A cross-platform, customizable science fiction terminal emulator with advanced monitoring & touchscreen support.

edex-ui

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List of top 500 ReactJS Interview Questions & Answers....Coding exercise questions are coming soon!!

reactjs-interview-questions

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meteor

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A visual no-code/code-free web crawler/spider易采集：一个可视化浏览器自动化测试/数据采集/网页爬虫软件，可以无代码图形化的设计和执行爬虫任务。别名：ServiceWrapper面向Web应用的智能化服务封装系统。

GNU Affero General Public License v3.0

EasySpider

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The zero configuration build tool for the web. 📦🚀

parcel

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Front End interview preparation materials for busy engineers (updated for 2026)

front-end-interview-handbook

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Node.js/Typescript/Bun Production Process Manager with a built-in Load Balancer.

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daisyui

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uni-app

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The 1.x line is frozen - features and bugfixes now happen on https://github.com/yarnpkg/berry

yarn

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The best design tools and plugins for everything 👉

Awesome-Design-Tools

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Call all Node.js modules directly from DOM/WebWorker and enable a new way of writing applications with all Web technologies.

Full name	Description	Watchers	Language
affaan-m/ECC	The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.	259633	JavaScript
react/react	The library for web and native user interfaces.	250483	JavaScript
trekhleb/javascript-algorithms	📝 Algorithms and data structures implemented in JavaScript with explanations and links to further readings	196733	JavaScript
Snailclimb/JavaGuide	Java 面试 & 后端通用面试指南，覆盖计算机基础、数据库、分布式、高并发、系统设计与 AI 应用开发	158597	JavaScript
airbnb/javascript	JavaScript Style Guide	148233	JavaScript
vercel/next.js	The React Framework	142322	JavaScript
DietrichGebert/ponytail	Makes your AI agent think like the laziest senior dev in the room. The best code is the code you never wrote.	139809	JavaScript
Chalarangelo/30-seconds-of-code	Coding articles to level up your development skills	129104	JavaScript
nodejs/node	Node.js JavaScript runtime ✨🐢🚀✨	121959	JavaScript
mrdoob/three.js	JavaScript 3D Library.	115573	JavaScript
react/create-react-app	Set up a modern web app by running one command.	103259	JavaScript
mui/material-ui	Material UI: Comprehensive React component library that implements Google's Material Design. Free forever.	99049	JavaScript
microsoft/Web-Dev-For-Beginners	24 Lessons, 12 Weeks, Get Started as a Web Developer	96687	JavaScript
addyosmani/agent-skills	Production-grade engineering skills for AI coding agents.	95077	JavaScript
ryanmcdermott/clean-code-javascript	Clean Code concepts adapted for JavaScript	94763	JavaScript
louislam/uptime-kuma	A fancy self-hosted monitoring tool	91416	JavaScript
sveltejs/svelte	web development for the rest of us	88129	JavaScript
Leonxlnx/taste-skill	Taste-Skill - gives your AI good taste. stops the AI from generating boring, generic slop	87539	JavaScript
anuraghazra/github-readme-stats	:zap: Dynamically generated stats for your github readmes	79832	JavaScript