freeCodeCamp

Claude Code for Beginners

Beau Carnes |
AI-powered coding has evolved beyond simple chat interfaces. The latest leap forward is Claude Code, a command-line tool from Anthropic that lives directly in your terminal and understands your entire... read more

AWS Certified Cloud Practitioner Study Course – Pass the Exam With This Free 14-Hour Course

Beau Carnes |
Passing the AWS Certified Cloud Practitioner Exam is one of the first steps to a career in cloud development. And freeCodeCamp just published a free 14-hour course that will help you prepare for the e... read more

Product Experimentation with Synthetic Control: Causal Inference for Global LLM Rollouts in Python

Rudrendu Paul |
Every product experimentation team doing causal inference on LLM-based features eventually hits the same wall: when the provider ships a new model version, there's no holdout. Your infrastructure team... read more

How to Build Production-Ready AI Features with Flutter [Full Handbook for Devs]

Atuoha Anthony |
You've probably seen the demos. A Flutter app, a text field, and a few lines calling the Gemini API – and out comes something that feels like magic. The audience applauds. Your product manager is alre... read more

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

Bhavin Sheth |
Whether it’s invoices, scanned documents, reports, certificates, or receipts, users often need to convert PDF pages into image files quickly. Modern browsers make this much easier than before. Instead... read more

How to Build Optimal AI Agents That Actually Work – A Handbook for Devs

Tiago Capelo Monteiro |
Since moving to Silicon Valley in 2025, I've seen AI everywhere. And after I attended NVIDIA GTC 2025, one thing became very clear from many conversations I had: most companies now have AI agents runn... read more

How to Develop Chrome Extensions using Plasmo [Full Handbook]

Preston Mayieka |
Chrome extensions are lightweight tools that enhance and personalize your browsing experience, whether that's managing passwords, translating pages, or adding entirely new features to websites you use... read more

Why Your “Simple Deploy” Turned Into a Week of Infrastructure Work

Manish Shivanandhan |
If you're running production workloads, this guide is for you. It's not about side projects, early-stage experiments, or a single-service app with low traffic. This is for teams shipping real systems.... read more

AI Paper Review: Language Models are Unsupervised Multitask Learners (GPT-2)

Mohammed Fahd Abrah |
Before models like ChatGPT became part of everyday life, AI systems were already getting surprisingly good at generating text. But there was still a major limitation: most models could only perform ta... read more

How to Build a Self-Hosted WhatsApp Bot with n8n and WAHA

אחיה כהן |
WhatsApp is where your many of your customers likely already are. For support tickets, order updates, booking reminders, and lead qualification, a WhatsApp channel often converts several times better... read more