freeCodeCamp

How to Integrate AI Agents in .NET Environments for Faster Development

Gopinath Karunanithi |
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... read more

How to Build a Shadcn Sheet Component in React: Cart and Filter Panel Examples

Vaibhav Gupta |
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... read more

How to Build a Browser-Based PDF Image Extractor Using JavaScript

Bhavin Sheth |
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... read more

Product Experimentation with Uplift Modeling: Targeting Your LLM Feature Rollout to Users Who Actually Benefit (Python Implementation)

Rudrendu Paul |
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... read more

How to Turn a Postman Collection into a Maintainable pytest Suite

Mikhail Golikov |
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... read more

How an LMS Software Helps Technical Teams Upskill Faster

Manish Shivanandhan |
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... read more

How to Build Your Own MCP Server and Publish Your ChatGPT App with Supabase Auth and DigitalOcean

Abdurrahman Rajab |
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... read more

How to Implement Role-Based Access Control in a Node.js REST API with JWT

Zia Ullah |
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... read more

Build Your Own Healthcare AI Assistant with MedGemma, Ollama, and Open WebUI

Lakshmi Mahabaleshwara |
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... read more

How MCP Is Changing WordPress Development

Manish Shivanandhan |
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... read more