If you’ve built something worth pitching – something more than a fancy hobby with a login screen – you need to know your numbers. Not "I’ll get back to you" know them, know them like you know your co-founder's coffee order. I have seen too many found...

Successfully translating a Figma design into a Flutter application requires more than just placing elements on the screen. The objective is to achieve pixel-perfect fidelity, meaning that the Flutter app must precisely mirror the designer's original ...

Prepare for the Google Cloud Associate Cloud Engineer (ACE) exam and pass! We just published an updated Google Cloud Associate Cloud Engineer course on the freeCodeCamp.org YouTube channel. Andrew Brown from ExamPro developed this course. Associate C...

Learning about time series forecasting in Python is important because it can help predict future trends. We just posted a course on the freeCodeCamp.org YouTube channel that is an introduction to time series forecasting with Python. You’ll learn what...

On this week's episode of the podcast, freeCodeCamp founder Quincy Larson interviews Edidiong Asikpo. Didi is a software engineer. She grew up in Lagos, the biggest city in Nigeria and the biggest tech hub in Africa. Didi got into medical school. B...

Getting the "spawn python ENOENT" error while setting up an MCP (Model Context Protocol) server on macOS can be frustrating. But don't worry – in this tutorial, I'll guide you through fixing it by rebuilding your Python virtual environment. By the en...

In my first few years learning software development and building applications, I was quite interested in finding the best programming language, platform, libraries, frameworks, patterns, and architectures available. I thought that by finding the best...

Learn the essential concepts of DevSecOps and why integrating security throughout the software development lifecycle is more important than ever. We just posted a course on the freeCodeCamp.org YouTube channel that will guide you through the foundati...

Building a website with WordPress used to take a lot of time. You had to install the platform, choose a theme, add plugins, write all the content by hand, and make sure everything worked well together. Even skilled developers spent hours setting up a...

In today's distributed computing landscape, efficient service-to-service communication is crucial for building scalable, high-performance applications. gRPC (Google Remote Procedure Call) has emerged as one of the most powerful frameworks for creatin...

Learn Next.js 15 Caching & Rendering using the App Router. We just posted a course on the freeCodeCamp.org YouTube channel for people who want a clear, engineering-level understanding of how Next.js optimizes performance through smart rendering strat...

In this article, you’ll learn how to integrate Tailwind CSS with Electron to build stylish, responsive desktop applications. You’ll set up Tailwind in an Electron project, configure your project, style the components, and optimize the development wor...

This book will guide you, step-by-step, through designing a relational database using SQL. SQL is one of the most recognized relational languages for managing and querying data in databases. You’ll learn the fundamental concepts related to both data ...

Something big is happening in the world of software development. In 2025, the way we write, read, and think about software has undergone a significant shift, and it’s not subtle. At the center of this shift is artificial intelligence. Just five years...

Recently, I set up WSL2 and Ubuntu on my Windows 11 to work on some open-source projects. Since I also maintain these projects, I installed GitHub CLI to ease my workflow. I successfully installed the GitHub CLI, but failed to authenticate it. The er...

On this week's episode of the podcast, freeCodeCamp founder Quincy Larson interviews Dominick Monaco. He dropped out college to hike the Appalachian Trail, a 2,200 mile backpacking route across the US. After working in nature conservation for 3 years...

Language is messy, subtle, and full of meaning that shifts with context. Teaching machines to truly understand it is one of the hardest problems in artificial intelligence. That challenge is what natural language understanding (NLU) sets out to solve...

Many mobile applications require a stable internet connection to provide a smooth user experience. And as a Flutter developer, you need a robust way to handle network state changes, ensuring that your app responds gracefully whether it's connected, d...

When developers think of Next.js, they often associate it with SEO-friendly static websites or React-based frontends. But what many miss is how Next.js can also be used to build full-featured backend APIs – all within the same project. I’ve recently ...

Sign and symbol languages, like Makaton and American Sign Language (ASL), are powerful communication tools. However, they can create challenges when communicating with people who don't understand them. As a researcher working on AI for accessibility,...