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Extensions are software components that add specific capabilities to a larger software application. They enable users to customize and enhance their software environments in various domains, including web browsers, development IDEs, and operating systems. Extensions can range from simple UI tweaks to adding sophisticated new features. They play a crucial role in tailoring software solutions to individual needs, fostering a richer and more productive user experience.

Why Extensions Matter

Extensions allow for greater flexibility and personalization of software tools, empowering users to adapt tools according to their specific workflow and preferences. They encourage a vibrant ecosystem around software products where third-party developers can contribute valuable functionality that benefits the entire user community.

Common Uses of Extensions

Browser Extensions: Enhance your web browsing experience with ad-blockers, password managers, and more.

IDE Plugins: Integrate advanced coding tools, linters, and language support into development environments.

Operating System Extensions: Customize OS features, improve accessibility, and optimize system operations.

For developers, understanding and leveraging extensions can lead to better software design and more engaging user interfaces. For users, extensions provide a path to a more personalized and efficient toolset.

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ohmyzsh /ohmyzsh

Sponsor

Star185k

🙃 A delightful community-driven (with 2,400+ contributors) framework for managing your zsh configuration. Includes 300+ optional plugins (rails, git, macOS, hub, docker, homebrew, node, php, python, etc), 140+ themes to spice up your morning, and an auto-update tool that makes it easy to keep up with the latest updates from the community.

shell theme zsh cli productivity oh-my-zsh terminal plugins themes cli-app oh-my-zsh-theme oh-my-zsh-plugin zsh-configuration ohmyzsh plugin-framework

UpdatedFeb 19, 2026
Shell

webpack /webpack

Star66k

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.

javascript web-performance webpack web es6 compiler commonjs amd es2015 plugins javascript-compiler build-tool loaders module-bundler esm javascript-modules

UpdatedFeb 20, 2026
JavaScript

squidfunk /mkdocs-material

Star26.1k

Documentation that simply works

theme documentation framework material-design plugins mkdocs

UpdatedFeb 20, 2026
Python

elizaOS /eliza

Star17.6k

Autonomous agents for everyone

slack agent framework crypto ai telegram discord chatbot plugins swarm autonomous eliza rag agentic elizaos

UpdatedFeb 19, 2026
TypeScript

langbot-app /LangBot

Star15.3k

Production-grade platform for building agentic IM bots - 生产级多平台智能机器人开发平台. 提供 Agent、知识库编排、插件系统 / Bots for Discord / Slack / LINE / Telegram / WeChat(企业微信, 企微智能机器人, 公众号) / 飞书 / 钉钉 / QQ e.g. Integrated with ChatGPT(GPT), DeepSeek, Dify, n8n, Langflow, Coze, Claude, Gemini, MiniMax, Ollama, SiliconFlow, Moonshot, GLM, clawdbot / moltbot / openclaw

agent telegram line discord plugins openai wechat qq lark dingtalk dify rag feishu n8n kook llm coze ollama deepseek langbot

UpdatedFeb 20, 2026
Python

marcuswestin /store.js

Star14k

Cross-browser storage for all use cases, used across the web.

javascript serialization storage localstorage plugins cross-browser store-json

UpdatedJan 16, 2024
JavaScript

Flow-Launcher /Flow.Launcher

Sponsor

Star13.9k

🔍 Quick file search & app launcher for Windows with community-made plugins

search windows productivity alfred portable spotlight launcher plugins desktop finder raycast application-launcher wox hacktoberfest launchy productivity-tools keyboard-launcher listary flow-launcher

UpdatedFeb 20, 2026
C#

Vendicated /Vencord

Sponsor

Star12.7k

The cutest Discord modification

discord mod plugins themes vendetta vendetta-plugins

UpdatedFeb 20, 2026
TypeScript

albertlauncher /albert

Star7.9k

A fast and flexible keyboard launcher

python qt cpp launcher plugins application-launcher albert albertlauncher keyboard-launcher qt6

UpdatedFeb 13, 2026
C++

SteamDeckHomebrew /decky-loader

Star6.4k

A plugin loader for the Steam Deck.

python steam plugins steamos steamdeck

UpdatedFeb 8, 2026
TypeScript

nikolaeu /numi

Star6.3k

Beautiful calculator app for macOS, Linux & Windows

javascript macos linux cli converter calculator app extensions plugins numi

UpdatedFeb 20, 2026
JavaScript

kubernetes-sigs /headlamp

Star5.8k

A Kubernetes web UI that is fully-featured, user-friendly and extensible

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UpdatedFeb 20, 2026
TypeScript

cuberite /cuberite

Star5.4k

A lightweight, fast and extensible game server for Minecraft

android windows linux raspberry-pi minecraft c-plus-plus lua server plugins cuberite

UpdatedFeb 19, 2026
C++

unifiedjs /unified

Sponsor

Star4.9k

Parse, inspect, transform, and serialize content with syntax trees

javascript processor plugins ast cst syntax-tree vfile unist

UpdatedFeb 4, 2025
JavaScript

Diorser /LiteMonitor

Star4.1k

一款轻量级、高度可定制的 Windows桌面和任务栏硬件性能监控工具，支持监测 CPU、GPU、内存、磁盘、网速、FPS 计数、插件扩展及内存清理。A lightweight, customizable hardware monitor for the Windows desktop & taskbar. Features CPU/GPU/RAM/Network monitoring, FPS counter, plugin support, and memory optimization.

windows lightweight web-server plugins taskbar system-monitor network-monitor hardware-monitor cpu-monitor fps-counter memory-cleaner