Guides & tutorials
Longer posts tagged as tutorials, guides, or beginner-friendly. The kind you keep open in a second monitor.
How to Build a Case Converter Tool Using HTML, CSS, and JavaScript
If you're looking to level up your front-end development skills by building a practical web utility, this is the guide for you. We'll code a fully functional Case Converter Tool from scratch using onl
Mastering Self-Hosted Convex: A Complete Deployment Guide
Stop struggling with custom scripts and learn the professional way to deploy Convex functions to your own server using the official CLI.
How to Build a Browser-Based PDF Metadata Editor Using JavaScript – A Step-by-Step Guide
PDF files contain more information than what appears on the page. Behind every PDF document is metadata that stores information such as the document title, author, subject, keywords, creator applicati
How to Preprocess Medical Images for Machine Learning – A Guide Using Chest X-Rays
Working with healthcare data introduces preprocessing challenges that go beyond those you might encounter with structured data. Some familiar techniques still apply, while others look very different o
Production RAG with LangChain & Vector Databases
Master the transition from simple prototypes to production-grade RAG systems by addressing the critical scaling, debugging, and security challenges that standard tutorials often ignore. We just posted
How to Build a Calculator with Tkinter in Python
In this tutorial, you'll learn how to create a simple arithmetic calculator in Python with Tkinter. The project will be one of your first steps towards building an actual GUI in Python. This is a hand
How to Convert Images to PDF in the Browser Using JavaScript – A Step-by-Step Guide
Whether it’s scanned documents, screenshots, receipts, notes, certificates, or multiple photos, users often need a quick way to combine images into a downloadable PDF. Modern browsers make this much e
How to Build a Live Options Database in Python – A Complete Guide
Live options analytics change constantly. Implied volatility shifts, Greeks drift, and the shape of the surface can look different even a few minutes later. But a lot of teams still treat these number
How to Build a Scoped Note-Taking API with Django Rest Framework and SimpleJWT
If you've built a Django API and you're wondering how to add authentication so that each user can only access their own data, you're in the right place. Most Django tutorials teach you session-based a
How to Build a Full-Stack SaaS App with TanStack Start, Elysia, and Neon
Most full-stack React tutorials stop at "Hello World." They show you how to render a component, maybe fetch some data, and call it a day. But when you sit down to build a real SaaS application, you im
How to Use React's Context API – Tutorial with Examples
In React, data is typically passed down from parent to child via props. But this can lead to "prop drilling" – where we have to pass props down through lots of components to get them where they're nee…
How to Build a Counter Button with React, TailwindCSS, and TypeScript
How can you keep track of the number of times a user clicks a button? How are the hearts on Instagram or the likes on Facebook counted? In this tutorial, we will build a button that tracks the number…
React 19 Actions – How to Simplify Form Submission and Loading States
React 19 introduces Actions, which are asynchronous functions. Actions are helpful in making form submissions easier. This tutorial dives into what Actions are and how to use them. You'll learn about:…