The Best React Data Grid Is the One You Will Not Hate After Feature Request Number Seven
I have never seen a product manager open a ticket called: Turn this table into a small operating system. It happens one perfectly reasonable request a…
Latest Web news from Tech News
All topics
AI
agents
ai
api
architecture
automation
aws
beginners
career
claude
database
devchallenge
devops
javascript
learning
linux
llm
machinelearning
mcp
opensource
performance
productivity
programming
python
react
security
showdev
tutorial
typescript
webdev
Day 31 of learning MERN Stack
Hello Dev Community! 👋 It is officially Day 31 — stepping straight into my second month of documented full-stack engineering! Fresh off the 30-day mil…
Day 29 of learning MERN Stack
Hello Dev Community! 👋 It is officially Day 29 of my journey to master the MERN stack! Tomorrow marks a full month of consistency, and today I wrapped…
LLM Cost Optimization: How We Cut Reply Generation from $0.011 to $0.0009
When we shipped the first version of AI-generated replies for HelperX , each reply cost us about $0.011 in API spend. That sounds tiny until you multi…
I Built a PDF Toolbox That Never Uploads Your Files — Here's How
Every "free online PDF tool" uploads your files to a server. I built one that doesn't — and here's the technical breakdown. The Privacy Problem Try th…
3 Basic JavaScript concepts to start your React Journey: Part 1
As the title suggests, we're going to look at three fundamental JavaScript concepts that will help you start your React learning journey. These aren't…
# I Built a Full Stack Academic Management System for My College — Here's How
I Built a Full Stack Academic Management System for My College — Here's How For my B.Tech final year project, me and my team built Student Sphere — a …
Stop Rewriting UI Components for Every Project
Ever started a new project and found yourself rebuilding the same modal, dropdown, toast notification, tabs, and switches for the 20th time? I got tir…
Stop Hardcoding HTML for Every Image — Use Template Variables Instead
Most developers generate images like this: const html = ` <div style="..."> <h1> ${ post . title } </h1> <p> ${ post . author …
How to verify Gumroad license keys in an Electron app (and the 3 gotchas nobody warns you about)
If you sell a desktop app on Gumroad, it hands every buyer a license key. But Gumroad stops there — checking that key inside your app is entirely up t…
I built a real-time Air Quality Index monitor from scratch — AtmoPulse 🌍
Hey everyone! I'm a fullstack development learner and I just finished building one of my most ambitious projects entirely from scratch — no templates,…
Telegram Stars Economics for Bot Developers: What Your Stars Are Actually Worth in 2026
Your Telegram bot is live. Users are sending Stars. You check your creator dashboard and see 847 Stars sitting there. The question that follows is alw…
How to Build One Web App That Works on iOS, Android, and Desktop
I was working on a project a while back where the users had to use the app in three different places. They needed to use it on desktop computers at th…
I built an offline wiki that fits in a single 19 KB HTML file
I kept hitting the same wall looking for an offline wiki. Kiwix is great, but it's an app plus multi-GB ZIM files. IPFS needs connectivity and setup. …
react-slotx
react-slotx — Step-by-Step Tutorial This guide will walk you through using react-slotx from scratch. No prior knowledge of slots or portals is require…
How AI Phishing Emails Are Built (And the One Pattern That Always Gives Them Away)
Most phishing detection advice is now actively harmful. Teaching users to look for typos and generic greetings made sense when phishing was a spray-an…
I built a 100% private, client-side suite of web utility tools (No data leaves your browser)
Hey DEV community! 👋 As a developer, I got tired of using clunky, slow, ad-choked web calculators that constantly refresh the page or track your input…
Bun rewrote itself from Zig to Rust using an LLM in 9 days. That should terrify you.
A major runtime just got machine-translated to a completely different language and merged in under two weeks. Let me say that again slowly. Bun, the J…
I Built a 4-Sided Plot Area Calculator with 2D & 3D Visualization
I Built a 4-Sided Plot Area Calculator with 2D & 3D Visualization Most online plot calculators only work for simple rectangular plots. However, ma…
The Next.js Data Cache Error That Broke My Production App (And How I Fixed It)
The Next.js Data Cache Error That Broke My Production App (And How I Fixed It) A real bug from building Flacron Gamezone — a live football platform bu…
[Перевод] Немного магии: как устроен API фикстур в Playwright
Playwright использует довольно необычный подход в реализации своего JavaScript API для фикстур. Чтобы понять, как это работает, мне пришлось заглянуть…
Edge Computing in the Browser: How I Replaced a Backend Server with Web Workers & WASM
The obsession with centralizing heavy compute on backend servers is a massive bottleneck for both cost and latency. In 2026, as more applications move…
I Built a Privacy-First PDF Toolbox — Your Files Never Leave the Browser
Every online PDF tool I've used uploads your documents to their servers. Tax returns, contracts, medical records — they all go to some third-party ser…
Generating valid .ics calendar feeds at build time
A few weeks ago I shipped a feature I'd been putting off because it felt like it needed a backend: subscribable calendar feeds. "Add this holiday to G…
How I Fixed My AI Chatbot's Laggy Responses with Server-Sent Events
I've been building a personal AI assistant for my developer blog – you know, one of those floating chat widgets that answers questions about my projec…
Why I Replaced a Node.js Service with 30 Lines of Bash — and When You Shouldn't
A few months ago I had a small job to automate: every day, take a list of URLs from my site and notify Google and Bing that they'd changed, so new pag…
Why I stopped hardcoding AI API keys in my frontend
A few months ago, I pushed a commit that accidentally exposed my OpenAI API key in a client-side JavaScript bundle. I caught it before anyone else did…
Передача значений переменной из PHP в JavaScript
Здравствуйте уважаемые читатели. За ранее хочу сказать, что это мой первый пост и не судите очень строго. Сегодня пост будет посвящен передачи значени…
A Scatter-Plot Explorer for World Statistics — Log Scales and Hand-Rolled Pearson Correlation
"Do countries with higher GDP per capita also have longer life expectancy?" I built a tool that lets you explore questions like that across 48 countri…
I Built a GitHub Repo Health Scorer with the Free Public API
Hackathon judges, hiring managers, and open-source maintainers all ask the same question fast: is this repo alive and looked-after? Eyeballing every r…