Resources
Resource listings 2364 public listings.
- How to Automate Your Tests in Express Using Vitest (freecodecamp.org)Thinking through API logic while constantly switching tabs to test application integration can be overwhelming and time-consuming. Well, yo…
- How to Build API Documentation From Scratch [A Roadmap for Technical Writers] (freecodecamp.org)As a technical writer, building public-facing API documentation from scratch for a real product can feel like a dream come true, especially…
- How to Build Characterization Tests Before Refactoring Legacy Code (freecodecamp.org)The first thing many engineers want to do when they inherit legacy code is improve it. You find a function that's difficult to understand.…
- Learn the AI SDLC (freecodecamp.org)Perhaps you can relate to this scenario: you've explained AI models four times using the same instructions this week. You've talked repeate…
- How to Measure Your AI Citation Rate Across ChatGPT, Perplexity, and Claude (freecodecamp.org)Most sites think they're getting AI citations because their brand shows up in ChatGPT answers, but they're not. Visibility and citation are…
- A Developer's Guide to WebMCP: Shipping a 0% Adoption Standard (freecodecamp.org)I scanned 111,076 of the top 200,000 websites on the internet looking for a specific HTTP header. I found exactly zero. Not one domain has…
- How to Run an AI Extractability Audit on Your Site (I Found 6 Heading Tags That Cost Me Citations) (freecodecamp.org)When an AI assistant answers a question, it lifts sentences from a handful of pages and cites them. Whether your page is liftable is not a…
- Top Colleges for career outcomes in United States (2025) (linkedin.com)Explore the top colleges in United States for the year 2025. LinkedIn’s Top Colleges list helps you by highlighting schools that set studen…
- How to Tell If Your Search Console Impressions Came From a Human or a Machine (freecodecamp.org)Your Search Console report says a page earned 3,068 impressions on the first page of Google over 90 days. But it earned zero clicks in that…
- Top Startups to work for in United States (2025) (linkedin.com)Explore the top startups in United States for the year 2025. LinkedIn’s Top Startups list helps you by highlighting startups that set you u…
- What Every Dev Should Know About Tracking Product Data (freecodecamp.org)Product data is the record of what actually happens inside your app or website. It shows what your users do, how your system behaves, and h…
- How Firestore Structures Data and How to Perform CRUD Operations With It (freecodecamp.org)Most apps eventually need to store and manipulate data. And if you're building with Firebase, that data lives in Firestore, Google's flexib…
- Top Companies to work for in United States (2026) (linkedin.com)Explore the top companies in United States for the year 2026. LinkedIn’s Top Companies list helps you by highlighting companies that set yo…
- LinkedIn: Jobs (linkedin.com)LinkedIn | 34,388,806 followers on LinkedIn. Founded in 2003, LinkedIn connects the world's professionals to make them more productive…
- Bloom Filters Explained: The Probabilistic Data Structure Powering Instagram, Google, and (freecodecamp.org)Instagram has over 500 million registered usernames. When a new user tries to register, the platform needs to answer one question almost in…
- Learn Excel Formulas and Functions (freecodecamp.org)Excel remains one of the most widely used and powerful tools in the tech and business worlds, but truly mastering its formulas and function…
- Understanding the CAP Theorem: Consistency, Availability, and Partition Tolerance in System Design (freecodecamp.org)In 1999, Eric Brewer made a claim that would shape how distributed systems would be designed for decades. He proposed that any distributed…
- Online C++ courses and programs (edx.org)Looking for a C++ full course that you can take online? Check out our page to browse flexible edX courses in C++ that you can complete at y…
- How to Build an AI File Analysis Agent with Python (freecodecamp.org)If you've ever opened a 30-page PDF and thought, “There's absolutely no way I am reading all of this,” you already understand why file-anal…
- How to Build Accessible Android Apps with Jetpack Compose: A Comprehensive Guide (freecodecamp.org)Making your mobile apps accessible makes sure that everyone, including people with visual, auditory, motor, or cognitive disabilities, can…
- How to Protect Your Privacy While Browsing the Web (freecodecamp.org)Every time you open a web page, you leave a trail. Your browser shares your IP address, your screen size, your fonts, and dozens of other s…
- Why You Should Never Send Emails Inside Your API Requests (freecodecamp.org)Your signup endpoint looks fine in development. A user registers, you save the row, you call your email provider, and you return 201 Create…
- Feature Modularization in Flutter: How to Combine Clean Architecture and Domain-Driven Design for (freecodecamp.org)As an engineer working on a small team, your current structure could fly. But what if your team, all contributing to the same codebase, rea…
- How Quantum Connectivity Shapes What Your Quantum Computer Can Actually Compute (freecodecamp.org)Suppose your quantum program needs to apply a two-qubit operation between qubits 0 and 50. From the programmer's perspective, that sounds s…
- AI and Digital Marketing Trends Online Class (linkedin.com)Stay up to date on the latest trends in digital marketing. Get biweekly tips to reach your target customers in new and exciting ways.
- The Builder Design Pattern: A Better Approach to Complex Object Construction (freecodecamp.org)Some objects are simple, like a string, number, or boolean. You create them in one line and move on. Other objects aren't simple at all, li…
- How to Use Skills in Agentic Flutter Development: A Handbook for Devs (freecodecamp.org)One of the biggest misconceptions about AI-assisted development is that using AI means giving up the engineering experience you've built ov…
- How OpenTelemetry Works: A Complete Guide (freecodecamp.org)If you’re a software developer or DevOps engineer, you've probably come across OpenTelemetry. It comes up a lot, especially when talking ab…
- Graphic Design Tips & Tricks Online Class (linkedin.com)John McWade presents a series that touches on all areas of design, helping designers new and old sharpen their skills and create more power…
- How AI Chips Are Made (freecodecamp.org)We just published a comprehensive, first-principles course on the semiconductor supply chain on the freeCodeCamp.org YouTube channel. Taugh…
- How to Build AI Systems That Know When They Don't Know: A Practical Guide (freecodecamp.org)Large Language Models (LLMs) have fundamentally changed how we build internal business applications. They allow developers to create intell…
- Claude Code Observability with OpenTelemetry (freecodecamp.org)Agentic coding tools like Claude Code, OpenAI Codex, Google Antigravity, and Cursor have become ubiquitous for everyday software developmen…
- Psychological Safety: Clear Blocks to Innovation, Collaboration, and Risk-Taking Online Class (linkedin.com)Help your team unlock innovation and reach its full potential. Create a safe space for people to speak up, make mistakes, and bring their f…
- Agentic AI Engineering in Practice: How AI Engineers and Forward-Deployed Engineers Build with (freecodecamp.org)A practical, three-tool guide to the AI-native software development life cycle (SDLC): Plan, Design, Build, Test, Deploy, Maintain, reimagi…
- How AI Is Changing Patching and What Devs Need to Know About Exposure Management (freecodecamp.org)When a vulnerability scanner reports 23 vulnerabilities in your application, of which 4 are critical, 7 are high, and the remaining 12 are…
- How to Use Discord with a Screen Reader: A Quick Guide (freecodecamp.org)Discord is one of those technologies that came out of nowhere several years ago and is now everywhere. A huge variety of servers around all…
- How AI Receptionists Work: The Architecture Behind AI Phone Agents (freecodecamp.org)An AI receptionist may sound simple from the outside: a caller speaks, the system responds, and the conversation continues until the caller…
- Practical Engineering Online Class (linkedin.com)See engineering theory in practice. Learn common civil and mechanical engineering principles through fun, real-world examples and models.
- How to Build a Scholarship Research MCP Server with Node.js, Express, and MongoDB (freecodecamp.org)Scholarship hunting is a research job, not a single search box. You filter awards by field, GPA, citizenship, and deadline. You keep a shor…
- AWS Cloud Cost Monitoring, Alerting, and Optimization: A Guide for Devs (freecodecamp.org)There's a common conversation that happens in engineering teams every month. Someone forwards a screenshot of the AWS bill. The number is h…
- The Design Patterns Handbook: Learn Popular Design Patterns with C# Code Examples (freecodecamp.org)Design patterns are reusable solutions to common problems in software design. Think of them as blueprints: not finished code, but proven te…
- Thinking Creatively Online Class (linkedin.com)Learn behaviors and techniques that can help you be more creative as an individual and as part of a team.
- How to Refactor a Legacy Application Before Migrating It (freecodecamp.org)The moment a team decides to migrate a legacy application, there's usually pressure to start moving code. Move the database, the API, or th…
- SOLIDWORKS: Design for Mechatronics Online Class (linkedin.com)Learn how to use SOLIDWORKS to generate mechatronic (mechanical + electrical) designs, including parts, assemblies, and final drawings.
- The Gamepad API Lies to You: A Practical Guide to Reading Controller Input in JavaScript (freecodecamp.org)The Gamepad API is one of the smallest browser APIs you'll ever use. Four properties, one function, and no permissions prompt. You can have…
- Learn Python Interactively (freecodecamp.org)Python continues to be one of the most versatile, widely adopted programming languages in tech. Because its syntax mirrors plain English, i…
- Excel Data Visualization: Mastering 20+ Charts and Graphs Online Class (linkedin.com)Learn to use Excel for data visualization. Explore the most useful chart and graph tools, including scatterplots, histograms, sparklines, 3…
- How to Use Gradio with Python: A Complete Beginner-to-Advanced Book (freecodecamp.org)Gradio is one of those Python libraries that makes you wonder why building a web interface ever had to be complicated in the first place. Y…
- The Composite Design Pattern: How to Work with Individual Objects and Groups Through the Same (freecodecamp.org)Structural design patterns deal with how objects are created in terms of their structure and hierarchy. One of the patterns that explicitly…
- How to Build a Deployment Checklist That Actually Prevents Production Incidents (freecodecamp.org)Count the items on your deployment checklist. If there are more than a handful, the length is worth a second look. Part of it is likely you…