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In this article, we will build step-by-step a beautiful Unsplash Image Search App with pagination using React. By building this app, you will learn: * How to build an application using Unsplash API in React * How to make API Calls in different scenarios * How to  ( 18 min )

How about a little inspiration boost? Well, we might have something for you: desktop wallpapers created with love by artists and designers from across the globe. They are available in versions with and without a calendar for October and can be downloaded for free. Enjoy!  ( 19 min )

99 Game Development and AI with Lynn Zheng Today on the freeCodeCamp Podcast, I'm joined by Lynn Zheng. She's a software engineer at freeCodeCamp and at Salesforce. Lynn grew up in Shenzhen, China – the computer hardware capital of the world. Both of her parents were engineers. And from an  ( 3 min )

Astro is rapidly emerging as a go-to choice for developers looking to build fast, content-focused websites. Whether you're crafting landing pages, informative blogs, or intricate technical documentation, Astro offers a comprehensive suite of tools to make the process seamless. We just posted an Astro crash course on the freeCodeCamp.org YouTube  ( 3 min )

This article is all about experimenting with modern CSS features. We will combine things like CSS masks, CSS variables, trigonometric functions, `@property`, and more to create a neat hover effect that would have been extremely difficult to do even a few years ago without the latest and greatest that CSS has to offer.  ( 19 min )

Welcome! In a global world where information is available to everyone in just a few clicks, adapting your website and resources to other languages and cultures is essential to succeed. This book will teach you the fundamentals of localization and how to translate your website to reach a global community  ( 74 min )

Large language models have revolutionized the realm of Natural Language Processing (NLP) and have opened the doors for numerous applications in the tech world. But integrating and deploying these models to design powerful applications often demands a specialized set of tools and understanding. Enter LangChain: a game-changing framework tailored for  ( 3 min )

Hey there! Ready to build something cool? In this tutorial, we're going to create a full stack notes app using React, Node.js, and PostgreSQL. We'll start from scratch and end up with a fully functioning app where you can create, edit, and delete notes. Plus, we're adding validation on  ( 28 min )

Hacktoberfest is a month-long event that promotes open-source contributions, collaboration, and projects. Participating in this event as either a project maintainer or a contributor gives new perspectives to either your project or your career. You also get to meet fun people. This article will walk you through how to  ( 4 min )

Terraform is a popular Infrastructure as Code (IaC) tool that allows users to define and manage cloud infrastructure in a declarative way.  However, like any tool, Terraform can introduce security risks if not used properly. In this article, we will explore the most common security risks when using Terraform, the  ( 5 min )

In this article, Ganesh Dahal explains how the features have evolved since reusable blocks were officially released in WordPress 5.0 — and how the two have converged in WordPress 6.3 to form a powerful feature capable of allowing content creators to sync content and design patterns consistently in pages and posts.  ( 24 min )

This morning while I was eating breakfast, I opened YouTube and saw a video by self-taught developer Brian Cache: "The FASTEST Way to Learn to Code and ACTUALLY Get a Developer Job" (Capital letter emphasis is his own. The video is an 11 minute watch): I love watching these types  ( 5 min )

Java has been a popular programming language for over two decades. Learning Java is a good way to mastering the fundamentals of modern coding practices. We just posted a full course on the freeCodeCamp.org YouTube channel that will teach you the basics of Java programming. Alex Dobinca Cristian developed  ( 3 min )

Prismane is a free, comprehensive, have-it-all React UI library that provides a broad array of hooks, components, and form validators to help you build beautiful and functional user interfaces. Prismane was designed with performance in mind, ensuring lightning-fast loading times for a better user experience. In this article, you will  ( 5 min )

HTML, which stands for HyperText Markup Language, is the standard markup language used to create webpages. HTML provides a structured way to organize content on a webpage, allowing web developers to present text and media in a clear and meaningful way. In this article, we'll explore three fundamental HTML  ( 7 min )

Nuxt.js has been making waves in the web development world, especially among Vue.js enthusiasts. With its unique capabilities for server-side rendering, static site generation, and single-page applications, Nuxt offers a robust set of features for developers looking to build modern web apps. We just posted a full course on Nuxt  ( 3 min )

Branches are a really nice (and safe) way to configure or reconfigure your database without fear of screwing up the production database. Let’s take a closer look at how branching works with [Neon](https://neon.tech/), and the good news is, you probably already know how it works!  ( 14 min )

We’re talking about running grassroots conferences and meet-ups. What does it take to organize a small industry event for your community? Drew McLellan talks to WDC’s Alex Older to find out.  ( 32 min )

The art of computer science often revolves around solving problems that are seemingly simple at first glance, but dig a little deeper and you'll find intricate challenges that demand creativity, logic, and precision. One such iconic problem is the 0/1 Knapsack Problem. We just published a new course on the  ( 3 min )

Adrian’s kicking off a two-part series, sharing his journey as a lead developer. In the process, you will learn about the lessons and insights Adrian gained at work, including the strategies that went into the technical stack of the project and what it looks like to collaborate with a team he is leading for the first time.  ( 19 min )

We often make plans about the things we want, what we need to do, and places we want to visit. These lists could go on forever! However, there are times when we need to build a program that requires us to organize and manipulate information using lists. In this  ( 7 min )

In most conversations about programming, speed, and efficiency in Java are reoccurring terms as it's a language native to these features. You might ask, what is Java? You may also wonder what it means for a programming language to be interpreted or compiled. Let's explore these concepts in the following  ( 8 min )

Word embeddings serve as the foundation for many applications, from simple text classification to complex machine translation systems. But what exactly are word embeddings, and how do they work? Let's find out. What Are Word Embeddings? Word embeddings serve as the digital DNA for words in the world of natural  ( 5 min )

HTML, which stands for HyperText Markup Language, serves as the foundation of web development. It enables you to create interactive web pages, structure content, and effectively communicate your message. In this guide, we'll explore HTML comprehensively, addressing essential questions to provide a strong foundation for budding web developers. The  ( 7 min )

Today on the freeCodeCamp Podcast, I interview Benjamin Dunphy, founder of many San Francisco Tech Conferences including Reactathon. Ben studied international relations and had a short career in finance. Among other things, he co-authored a bill that eventually got passed in his state of New Hampshire. But Ben saw the  ( 3 min )

The Rust programming language is often used for system-level programming, emphasizing safety, concurrency, and performance, making it a popular choice for building systems software, game engines, and web browsers. An authentication server is another good use case for Rust. We just published a course on the freeCodeCamp.org YouTube channel that  ( 3 min )

The first time I learned about open source was through a tweet that promoted Hacktoberfest in 2019. And my first-ever accepted pull request was to add a book title in emojis to a list. You might think, "You can't count that as an open source contribution. That's a joke!" I  ( 10 min )

Curiosity has always been a part of human nature. Since the beginning of time, this has been one of the most important tools for birthing civilizations. Still, our curiosity grows — it tests and expands our limits. Humanity has explored the plains of land, water, and air. We've built underwater  ( 9 min )

With the new CSS `linear()` easing function on the horizon, the possibilities of what we can do to create natural-feeling animations and transitions in the future are greatly expanded. Jhey Tompkins looks at the current state of CSS easing in this article and demonstrates what we can expect from `linear()`, including handy tools to get your hands on it today.  ( 17 min )

Binary classification is a fundamental task in machine learning, where the goal is to categorize data into one of two classes or categories. Binary classification is used in a wide range of applications, such as spam email detection, medical diagnosis, sentiment analysis, fraud detection, and many more. In this  ( 9 min )

Mojo combines the usability of Python with the performance of C, leading to greater programmability of AI hardware and extensibility of AI models. It's basically an enhanced version of Python specifically designed for Artificial Intelligence developers. We just posted a full Mojo course on the freeCodeCamp.org YouTube channel. Elliot Arledge  ( 3 min )

This is an article on how I created an AI chess engine, starting completely from scratch to building my very own AI chess engine. Because creating an AI chess engine from scratch is a relatively complex task, this will be a long article, but stay tuned, as the product  ( 25 min )

Building a web application and producing a smooth user experience in the always changing world of web development requires more than just good looks – you also need to make sure that your application's design is efficient and consistent throughout. If you have a design system in place, you can  ( 7 min )

Google Sheets is a great tool for working and collaborating on spreadsheets, but it doesn't have native support for dark mode. In this article, we'll create our own dark mode. One way to do that would be by selecting all the cells and manually changing their background color and  ( 5 min )

The field of cybersecurity is engaged in a relentless battle between those who defend systems and data, and those who seek to attack them. In this high-stakes arena, artificial intelligence (AI) has emerged as a new, game-changing ally for the defenders. To understand AI's profound impact, it is important to  ( 31 min )

Creating a feature-rich blog is a great way to improve your web development skills. We just posted a course on the freeCodeCamp.org YouTube channel that will teach you how to create a blog that is not just visually appealing but also SEO-optimized for higher Google rankings. Codebucks created the  ( 3 min )

If you've ever considered venturing into the world of Python programming or if you're just looking for a comprehensive guide to help reinforce your existing knowledge, you're in for a treat. I'm excited to announce that Dave Gray, one of our most popular instructors, has returned to the freCodeCamp.org YouTube  ( 4 min )

To help ensure the success of a workshop, Ben Shih introduces the concept of an inclusive workshop. In Part 2 of the series, you will continue to delve deeper into several key principles and guidelines that you can follow during and after the workshop to encourage an inclusive atmosphere.  ( 22 min )

Before Node.js came into existence,  JavaScript could only be run on the browser. It could only be used as a scripting language for frontend web development. Then, Node.js came to free JavaScript from this confinement. It made JavaScript ubiquitous (meaning it could now be run everywhere). Node.js is a  ( 11 min )

Serverless computing has revolutionized the way developers build and deploy applications in the cloud. It takes away the complexities of server management, allowing developers to focus solely on writing code and delivering value to their users. In the realm of serverless computing, AWS Lambda stands out as a leading platform  ( 7 min )

It is easier than ever to launch your own Software as a Service (SaaS) company! (The hard part is getting people interested in it). We just posted a course on the freeCodeCamp.org YouTube channel that will guide you through every step of building and deploying a full-stack AI SaaS application.  ( 3 min )

I was tasked recently to find which of our processes was accessing a NFS share [https://en.wikipedia.org/wiki/Network_File_System]. During this process, I found that some tools are better adapted than others for the task. In this article, I want to share with you my findings. The whole process was fun and gave  ( 14 min )

This article is a peek behind the curtain of how content is managed here at Smashing Magazine. In it, you’ll get a tour of an article’s full lifecycle, from a basic outline to the sort of thing you’re reading right this second.  ( 16 min )

Today I'm joined by Eric Leung, Data Scientist at Disney and long-time open source contributor to freeCodeCamp. Eric Leung grew up in Oklahoma and learned a lot of math in high school. His friends wanted to go to medical school and he originally planned to join them. But instead  ( 3 min )

The Solana Curriculum is live. You can now learn Solana's blockchain protocol and the Solana tool ecosystem interactively by building a series of projects. This curriculum is made possible by The Solana Foundation, who gave our charity a grant to 100% fund development of this curriculum. What will this curriculum  ( 4 min )

A wise man once told me, "When you start eating Bun, Node.js will feel bland". But why is that relevant? JavaScript got way faster with a new JavaScript runtime called Bun, which is now production-ready with its version 1.0 release. But how and why is it faster than Node.js? A  ( 4 min )

Let’s play with images and experiment with CSS masks. The idea is fairly simple: take a single `` tag and harness the power of CSS to accomplish complex hover transitions. Through different demos, you will see how CSS masks combined with gradients allow us to create fancy effects — with efficient, reusable code.  ( 18 min )

I've contributed to open-source projects for a few years and learned a lot from the process. These experiences allowed me to look closer at the open source flow, from the technical, such as Git and GitHub, to the non-technical aspects. Although they are as important as the technical sides, the  ( 9 min )

Usually a Python function passes its results back using a return statement. The problem is that sometimes it can't, so you need to figure out a different way to return those results. This happens, most often, when someone else's library's interface is in the way, and you can't change  ( 23 min )

Vector embeddings are a key concept in the realm of machine learning and artificial intelligence. They bridge the gap between human language and machine understanding. We just posted a course on the freeCodeCamp.org YouTube channel that will teach out about vector embeddings and how to create an AI assistant. Ania  ( 3 min )

Dynamic programming is a powerful technique that has been a cornerstone in the world of algorithms and computer science. It's a method that breaks down problems into smaller, more manageable sub-problems, solving each one only once and storing their solutions in case they're needed again. This approach is particularly useful  ( 4 min )

On the modern web, we've normalized fetching fonts from client-side, or embedding fonts in resources that are served to users. While this may be tempting, it actually makes very little sense for most use-cases. This isn't suggesting to never use external fonts. Just a reminder that fonts aren't free, and  ( 8 min )

Running a workshop can be an effective alternative to traditional, long-standing meetings. To help ensure its success, Ben Shih introduces the concept of an inclusive workshop. In Part 1 of the series, you discover the fundamentals of inclusivity and get some solid guidance on how to plan an inclusive remote workshop.  ( 21 min )

The Donut model in Python is a model you can use to extract text from a given image. This can be useful in various scenarios, like scanning receipts, for example. You can easily download the Donut model from GitHub [https://github.com/clovaai/donut]. But as is common with AI models, you should  ( 6 min )

In 2023, the digital landscape is filled with unprecedented cybersecurity risks. From phishing scams to ransomware attacks. This article outlines different types of cyber attacks that individuals and businesses should be vigilant about. Cyber-attacks are a prevalent threat in the online world. They have the potential to cause substantial difficulties  ( 11 min )

When you’re building the backend of an application, you’ve got to figure out how all the different components are going to talk to each other. It’s like setting up a communication network for your app’s brain, and the way you do it can seriously impact how well your app  ( 13 min )

In the ever-evolving landscape of business, understanding the intricacies of finance and economics is essential for success. Topics such as the principles of money and deciphering the impact of macroeconomic changes serve as the bedrock of strategic decision-making. We just posted a full course on the freeCodeCamp.org YouTube channel that  ( 4 min )

Amazon Simple Storage Service (S3) is a highly scalable, durable, and available object storage service. It is designed to store any amount of data, anytime, from anywhere on the web. S3 is a key component of the Amazon Web Services (AWS) cloud platform. AWS Lambda is a serverless computing  ( 6 min )

CSS transitions and animations provide smooth, gradual ways to change an element's style. But they work in different ways. Here are the main distinctions between them: CSS Transition CSS Animation * Creates smooth transitions from one CSS value to another. * You need triggers  ( 20 min )

ReactJS is one of the most popular JavaScript libraries for building scalable and performant applications. When you're working on ReactJS projects, whether they're large or small, you'll need to focus on code quality, readability, maintainable, and scalability. Writing good code will also help you reduce PR comments from  ( 12 min )

I've been meaning to get my Terraform associates certification for some time now, but something always got in the way. Finally I was able to sit down and work my way through the study materials. Currently Andrew Brown and I are creating two Terraform Bootcamps: one for beginners [https://terraform.cloudprojectbootcamp.com/]  ( 21 min )

Have you ever dreamt of designing a video game but found yourself hesitant because of the coding aspect? Well, you can create your own came without code! We just released a course on the freeCodeCamp.org that will guide you through the creation of a wave defense game, all without having  ( 3 min )

There are many Python packages we use to solve our coding problems daily. Take, for instance, the library "Beautiful Soup," – it doesn't come with Python by default and needs to be installed separately. Many projects rely on libraries and other dependencies, and installing each one can be tedious  ( 5 min )

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Gradients are a powerful CSS feature. We use them for texture, depth, and even to hide parts of elements with CSS masking. This article covers another interesting way to use gradients — as a hover effect that affects the appearance of other elements around the hovered element.  ( 13 min )

Today I'm joined by Patrick San Juan, a software engineer who first learned to code in his 30s. I've known Patrick since the early days of freeCodeCamp. He has always been a positive, supportive force within the community. Patrick grew up the son of first-generation immigrants from the Philippines. His  ( 3 min )

Pratik Joglekar takes a philosophical approach to remind designers about the lost joy within themselves by effectively placing massive importance on mindfulness, introspection, and forward-looking. Without joy, the work we do would feel meaningless. To prevent it from happening, check out a few ideas that would help rediscover that spark of joy.  ( 21 min )

You read that right – you can practice web scraping without leaving your happy place: Google Sheets. Google Sheets has five built-in functions that help you import data from other sheets and other web pages. We'll walk through all of them in order from easiest (most limited) to hardest (most  ( 7 min )

Installing software on Linux is usually easier, or at least that's what it seems like. But this is usually not the case as we've come to a realization that installing and configuring some specific tools on Linux might be more time-consuming than on Windows or MacOS. An example of this  ( 9 min )

String concatenation is a common task that we do often. String concatenation is the operation of joining character strings end-to-end. For example, the concatenation of "snow" and "ball" is "snowball". In this article, I will be showing two methods by which you can concatenate strings in JavaScript. I will also  ( 7 min )

> “Any fool can know. The point is to understand.” - Albert Einstein Object-oriented programming is a popular way to write computer programs. Because of this, all programmers should understand what OOP is, what languages you can use to program this way, and why it is important. When asked in  ( 11 min )

Creating a full-featured YouTube clone requres a deep understanding of a wide variety of technologies. If you want to gain that understading, we have a course for you. We just posted a course on the freeCodeCamp.org YouTube channel that will teach you how to use the T3 stack to create  ( 3 min )

In this tutorial, you will learn how to remove empty rows and columns from Google Sheets using Google Apps Script. A while ago I wrote an article on how to remove empty rows and columns from Google Sheets [https://kcl.hashnode.dev/how-to-delete-empty-rows-and-columns-in-google-sheets] . I recently revisited that article and I now present  ( 7 min )

Diagrams are an important part of technical documentation. In this article we will explore how we can use code to generate diagrams and leverage them in Markdown. Here is an example of how a code generated diagram looks like: Diagram generated by codeNo tools, no dragging, aligning and snapping  ( 6 min )

Over the past decade, open-source projects have become the backbone of the technology ecosystem. They power everything from applications to innovations across different fields. These collaborative inventions bring together people with different skill sets including developers, designers, and tech enthusiasts in general with one goal in mind to build: to  ( 26 min )

Signal processing is an important field in engineering and programming. Basically, it allows engineers and programmers to improve data so that people can use it more effectively. For example, it is thanks to signal processing that much of the background noise in a phone call is removed. This way,  ( 9 min )

Containerization has transformed the way applications are built, deployed, and scaled. Containers provide a lightweight, portable, and uniform environment for developers to bundle their programs as well as their dependencies into a single unit. But when a system's container count rises, controlling and coordinating them becomes more difficult. Fortunately,  ( 6 min )

Ever since the launch of OpenAI's ChatGPT, everyone wants to learn about AI and ML. Not only that – everyone wants to build and release an AI product on their own to mark their position in the global competition. And if you already own a SaaS product, you  ( 13 min )

Building projects is a great way to practice your skills, especially in web development. We just published a course on the freeCodeCamp.org Spanish YouTube channel that will teach you how to build a Pokédex step by step with HTML, CSS, and JavaScript, using data from the PokéAPI [https://pokeapi.co/]. If you  ( 3 min )

Are you ready to take your web development skills to the next level and learn a bit about how platforms like Google Drive work under the hood? We just published a course on the freeCodeCamp.org YouTube channel that will teach you how to build a Google Drive clone with  ( 3 min )

TDD, or Test-Driven Development, is a software development approach where tests are written before the actual code is implemented. It requires a clear understanding of "What" and "How" in the the requirements of the project/feature. TDD helps to write less, but enough code. It helps prevent common software  ( 17 min )

Linux is an open-source operating system that is widely used in various applications due to its flexibility, stability, and security. One of the fundamental aspects of Linux is user management, which enables administrators to control access to resources and maintain security of the system. In the fast-paced world of technology,  ( 11 min )

Is the Test Pyramid really dead? Discover the more contemporary testing strategies and evaluate the Test Pyramid’s relevance in today’s software development practices.  ( 17 min )

Accessibility is never a "nice-to-have" requirement when it comes to developing websites and apps. It's a "must-have" that should be an integral part of your design and development process. Ensuring good accessibility is a fundamental responsibility for developers. It can help their applications provide an equitable experience for all  ( 5 min )

If you're curious about web development, you've probably heard the buzz about React. React is an open-source JavaScript library used for building user interfaces (UIs) in web applications. It has taken the web development world by storm. One of the key concepts in React is components. In this tutorial, we'll  ( 7 min )

At the heart of software development lies code. It's a set of sequential instructions that allow computers to run programs and applications. The act of writing code has always rested squarely upon the shoulders of skilled programmers. It's been a distinctly human endeavor. But the this process is  ( 16 min )

Large Language Models like ChatGPT can be used to increase your productivity on a ton of different types of tasks. To use LLMs effectively, it is important to understand prompt engineering strategies. We just published a crash course on the freeCodeCamp.org YouTube channel that will teach you how to  ( 3 min )

Hello everyone! Welcome to this tutorial where we're going to dive into the world of creating fun bubbles in code using HTML canvas and JavaScript. The best part? We'll achieve all of this using just a touch of HTML and all JavaScript, no CSS. What we will learn In  ( 7 min )

SQL is everywhere these days. Whether you're learning backend development [https://www.boot.dev/], data engineering, DevOps, or data science, SQL is a skill you'll want in your toolbelt. This a free and open text-based handbook. If you want to get started, just scroll down and start reading. That said, there are two  ( 34 min )

Welcome to the Databricks Delta Lake with SQL Handbook! Databricks is a unified analytics platform that brings together data engineering, data science, and business analytics into a collaborative workspace. Delta Lake, a powerful storage layer built on top of Databricks, provides enhanced reliability, performance, and data quality for big  ( 24 min )

In this article, Joas Pambou builds the tool to provide a sentiment score in **real-time** with enhanced user experience by providing multilingual support. You will use an OpenAI library called Whisper that transcribes audio files into text and detects the language, and Gradio, a UI framework, to establish the interface.  ( 18 min )