Practical Open Source Projects
Practical Open Source Projects
Quotio: The All‑In‑One MacOS Menu‑Bar Tool for AI Coders (2026)
Quotio is a free, native macOS menu‑bar app that brings together your Claude, Gemini, OpenAI, Qwen, Antigravity, and more into one coherent hub. With real‑time quota tracking, smart fail‑over, and one‑click configuration for popular AI coding companions like Claude Code and OpenCode, Quotio turns a chaotic AI‑workspace into a clean command centre. Learn how to install, set up accounts, automate agent routing, and keep your tokens under control—without leaving your IDE or terminal. Whether you’re a solo dev or a small team, Quotio gives you the visibility and control you need to stay productive.
Gemini Watermark Remover: Fast Client‑Side Open‑Source Tool
Gemini Watermark Remover is a 100% client‑side JavaScript utility that removes Gemini AI watermarks using a mathematically precise Reverse Alpha Blending algorithm. It works straight in your browser — no server uploads, no data loss, and full privacy. Learn how the project detects watermark positions, applies the inverse blend formula, and offers a drag‑and‑drop interface, a userscript for Gemini conversation pages, and a simple JavaScript API for developers. Whether you’re a web developer, data‑privacy advocate, or creator looking to clean up images quickly, this open‑source project delivers speed, precision, and openness.
Daily Stock Analysis with Gemini AI: A Free Open‑Source Tool
Learn how to clone, configure, and run a zero‑cost, AI‑powered daily stock analysis system that pulls data from AkShare, Tushare, Baostock, and YFinance, searches news via Tavily or SerpAPI, generates decision dashboards with Gemini, and pushes alerts to Enterprise WeChat, Feishu, Telegram, and email—all through GitHub Actions or Docker. Step‑by‑step instructions, secret management, and customization tips are included so anyone can get real‑time market insights without owning a server.
JSON-Render: Guarded AI‑Prompted UI Library for React
Learn how JSON‑Render turns natural‑language prompts from ChatGPT into safe, predictable React components. Install the library, define a catalog of whitelisted UI elements, register React renderers, and let the AI stream JSON that you can instantly render. This article walks you through the quick‑start steps, showcases guardrails like visibility conditions and built‑in validation, and demonstrates a full example dashboard. Perfect for developers looking to build AI‑powered dashboards and widgets without compromising on security or performance.
agent-browser: Fast Rust CLI for AI Browser Automation
Discover agent-browser, an open‑source, Rust‑powered command‑line tool that lets AI agents interact with web pages as seamlessly as a human would. With built‑in Playwright support, deterministic refs, headless or headed modes, and an optional streaming interface, it’s designed for speed, reliability, and developer friendliness. Learn how to install, script, and integrate agent-browser into serverless workflows or local projects, and see real‑world examples of AI agents navigating sites, filling forms, and parsing content — all with a single, easy‑to‑use CLI.
Hammerspoon: Automate macOS via Lua – an Open‑Source Power Tool
Discover how Hammerspoon turns your Mac into a custom automation hub powered by Lua scripting. Learn how to install the app, set up your first init.lua, and leverage a growing library of extensions to control windows, keyboard shortcuts, macOS services, and more. With a vibrant community and extensive documentation, Hammerspoon is the go‑to open‑source tool for developers and power users looking to streamline everyday tasks on macOS.
Agent Skills for Context Engineering: Open Source Mastery
Discover the Agent Skills for Context Engineering repository – a comprehensive, MIT‑licensed collection designed to supercharge AI agent systems. Learn about context engineering fundamentals, multi‑agent patterns, memory systems, and more. The guide walks you through installation in Claude Code, showcases real‑world examples, and explains how to contribute. Whether you’re building a personal operating system or a production‑grade evaluation pipeline, this repo gives you the proven skills to manage a model’s limited attention budget efficiently.
Obsidiand Skills: Claude Integration Made Easy
The obsidian‑skills repository turns Obsidian into an AI‑powered hub that works seamlessly with Claude, Codex and any agent compatible with the Agent Skills spec. With just a few installation steps—using the Obsidian marketplace, adding the repo to your / .claude folder for Claude Code, or copying the skills/ directory into your Codex CLI skills path—you unlock advanced note‑taking, automatic markdown generation, and JSON Canvas manipulation. Discover how this lightweight plugin lets you draft meeting notes, research literature, or design project boards with high‑quality AI output, all from within the Obsidian interface. The repo’s active community, MIT license, and vibrant star‑count make it a must‑try for any AI‑enthusiast.
DeepTutor: AI‑Powered Personalized Learning Assistant Open‑Source Project
DeepTutor brings cutting‑edge AI tutoring to your fingertips. This open‑source multi‑agent system combines FastAPI, Next.js, and RAG pipelines to deliver instant Q&A, interactive visualization, personalized practice, and research generation. With full Docker support, a CLI, and an intuitive web interface, developers can quickly spin up a personal AI tutor, experiment with embeddings, or contribute new modules. Explore the architecture, installation steps, core features, and how to contribute, and join the growing community of educators and developers shaping the future of AI‑driven learning.
Planning with Files: Manus-Style Claude Code Plugin
Discover 'planning-with-files', the viral Claude Code skill inspired by Manus AI—the $2B Meta acquisition. This open-source plugin revolutionizes AI agent workflows using persistent markdown files for task planning, progress tracking, and knowledge storage. Say goodbye to volatile memory, goal drift, and context stuffing. With 9.2k stars and quick installation via /plugin marketplace, it's perfect for complex tasks like research and project building. Explore the 3-file pattern, hooks, and templates that mimic Manus' billion-dollar context engineering.