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Most companies say they want to "adopt AI". In practice this usually means a chatbot bolted onto a website. Meanwhile, engineers using AI coding tools hit the opposite wall. The AI writes code fast, b

If you've been building Node.js projects, you've probably had an experience like this. The project runs fine on your machine, but when you push it to a server, something breaks. Maybe it's a different

In this tutorial, I'll show you how to build a multi-agent AI system in Python with no orchestration framework. We'll also implement this in LangGraph with nodes, edges, and shared state. The point of

A Live Activity is the card that sits on your lock screen while a delivery rider approaches, updating itself without you opening the app. Apple shipped the API in iOS 16.1. Google shipped its own vers

When a CEO buys shares after their company’s stock has fallen hard, it's tempting to read the purchase as a vote of confidence. The person running the business knows more than the average investor, so

The Android Bluetooth stack spent about a decade being the reason your headphones disconnected during the good part of a song. Gabeldorsche is Google's attempt to fix that at the architectural level,

Okay, pop quiz: What is a neural network? What is deep learning? Does anything come to mind? I know that feeling – yes, that thing you’re feeling now. It’s either confidence that you know what I’m ask

Most AI agents are reactive as they wait for us to ask something. In this tutorial, I'll show you how to build local AI assistants that run on a schedule, handle the tasks you care about, and generate

PDF files are widely used for sharing documents because they preserve formatting across different devices. Many PDFs contain valuable images such as logos, product photos, charts, diagrams, illustrati

A Sheet is a panel that slides in from the edge of the screen instead of popping up in the center like a modal. You've likely used one when you've opened a shopping cart on an e-commerce site or tappe

Generative AI agents are transforming .NET development by helping developers automate repetitive coding tasks, generate unit tests, assist with debugging, document code, and accelerate CI/CD workflows

A new type of app is emerging with the development of LLMs and AI-native apps. It lives inside an AI chat (like ChatGPT) rather than being a fully native web or mobile app. In this tutorial, you'll le

Technology changes faster than almost any other industry. The half-life of technical skills continues to shrink. Frameworks, cloud platforms, AI tooling, and cybersecurity practices evolve so quickly

A Postman collection is a great place to explore an API. But it's a poor place to keep your tests. Most teams find this out the slow way. Someone exports the collection, converts the requests into tes

Your LLM product experiment just came back positive, with a promising 8-percentage-point lift in task completion. You ship the feature and leadership celebrates. Three months later, the core metric ha

The first time I built an API without thinking about roles, I gave every logged-in user the same access. It worked fine until a regular user accidentally hit a delete endpoint and wiped test data. Tha

For years, the promise of AI-assisted development felt just out of reach for WordPress developers. You could ask a chatbot to generate a block of PHP, paste it into your editor, run into a conflict, c

Healthcare data is among the most sensitive data there is. Sending it to a cloud AI service is often not an option because of privacy requirements, regulatory compliance, or both. In this tutorial, yo

When Chain-of-Thought Prompting was introduced, it showed that large language models could solve many difficult reasoning problems simply by thinking step by step before producing an answer. It was a

In this tutorial, I'll show you how to build an MCP server with FastMCP, connect your local AI agent to use tools from the local MCP server that you built, and add support for remote MCP servers. We'l

We’ve been experimenting with a new style of content on the freeCodeCamp YouTube channel: the video essay. These projects allow us to step back from the code tutorials to explore the massive, complex

We've just released a new full-length tutorial on the freeCodeCamp.org YouTube channel that will teach you how to use TypeScript with React. If you’ve been building React apps but feeling like you’re

Flutter makes it fast to build beautiful UIs. That speed is one of the framework's greatest strengths, but it also creates a subtle problem: performance issues are easy to introduce and difficult to f

In this tutorial, I'll show you how to build a local AI agent with tool calling and short-term memory using LangChain v1, Ollama, Qwen, and Python. The agent decides on its own when to call tools, and

Your network policy says: allow traffic from 10.0.1.45. Yesterday, 10.0.1.45 was your payment service. Today, after a rolling deployment, it's your logging agent. Your payment service is now at 10.0.1

We just released an in-depth, hands-on video course on the freeCodeCamp.org YouTube channel about AI agents Led by Mumshad Mannambeth, founder of CodeCloud, this full-length course is designed to take

Card components are one of the most common UI patterns in web development. You see them in property listing apps, SaaS analytics dashboards, e-commerce product pages, and admin panels. But building a

Not every PDF contains searchable or editable text. Many PDFs are simply scanned images of documents such as invoices, contracts, books, receipts, government forms, and handwritten notes. While these

There's a sentiment I've seen in Slack threads, Hacker News comments, and late-night Discord vents more times than I can count: "I just want something like Heroku." I've said it myself. And I was wr

AI products often look simple from the outside. You type a question into ChatGPT and get an answer. You ask GitHub Copilot to complete a function and it writes code. You highlight text in Notion AI an