Dev.to WebDev

PostgreSQL Logical Replication for Zero-Downtime Database Splits

--- title: "PostgreSQL Logical Replication: Zero-Downtime Database Splits" published: true descripti…

Building Simple Everyday Calculators: Small Tools, Real Habits

Developers love building big systems, but some of the most-used software in the world is tiny: a uni…

Custom Web App Cost in 2026: Pricing & Scoping Guide

You have a solid idea. Maybe it's a client portal, a SaaS product, or an internal tool that your tea…

How to get started with JointJS for React

Whether you’re experimenting, building a proof of concept, or ready for a production-grade app, this…

State Management in Modern React: Zustand vs Redux Toolkit vs Context API

title: "State Management in Modern React: Zustand vs Redux Toolkit vs Context API" published: true p…

Why Page Builders Ruin Custom HTML Designs (And How Zero-Wrapper Block Conversion Fixes It)

Every front-end developer who has tried to bring a custom HTML/CSS mockup into WordPress has experie…

Fix grammar and clarity at scale with an affordable text API

Fix Grammar and Clarity at Scale with an Affordable Text API As developers and makers, we're consta…

GIF to PNG in the Browser: First Frames, 1-Bit Transparency, and Why the PNG Gets Bigger

GIF to PNG sounds like the simplest conversion there is. Load the image, draw it on a canvas, export…

The request timed out. Did the server save the change?

The user clicks Save. A spinner runs for a while, then the request times out. It is tempting to sho…

Designing a Fair AI Detection Feature: 7 UX Patterns That Prevent False Accusations

Adding an AI detector to your product takes an afternoon. Designing it so it doesn't falsely accuse …

Detect image formats from magic bytes in Node and Python

Read the first bytes of the file and compare them with each format's signature: FF D8 FF is JPEG, 89…

How I built Entry's homepage preview

My about.me page hadn't changed in 13 years. I wanted a personal homepage, but I didn't want another…