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Most Apps Are Slower Than They Need to Be — Here’s Why (Live Demo🛸)

Sylwia Laskowska4d ago • 5 min read

Most Apps Are Slower Than They Need to Be — Here’s Why (Live Demo🛸)

We’re a quarter into the 21st century, and the browser has quietly evolved into something much more....

#javascript#react#webassembly#webgpu

82 31

Defluffer - reduce token usage 📉 by 45% using this one simple trick! [Earthday challenge]

GrahamTheDev1d ago • 5 min read

Defluffer - reduce token usage 📉 by 45% using this one simple trick! [Earthday challenge]

This is a submission for Weekend Challenge: Earth Day Edition Fluffer: someone who helps people "ge...

#devchallenge#weekendchallenge#javascript#ai

38 11

Things You're Overengineering in Your AI Agent (The LLM Already Handles Them)

Serhii Panchyshyn5d ago • 6 min read

Things You're Overengineering in Your AI Agent (The LLM Already Handles Them)

Teams overengineer routing, memory, guardrails, and error handling. The LLM already handles most of ...

#ai#llm#javascript#production

35 23

Building the DEV Community Homepage with Pure Canvas

ouzz6d ago • 3 min read

Building the DEV Community Homepage with Pure Canvas

Building the DEV Community Homepage with Pure Canvas In modern frontend development, we...

#frontend#javascript#react#showdev

14 2

Marko Smiljanic4d ago • 3 min read

Beyond Marker Clustering

Learn about a better way to manage thousands of map markers by using priority-based ranking instead ...

#webdev#javascript#maps#performance

40 1

How to Build Canva-Like Collaboration with Velt AI Plugin & Fabric.js

Astrodevil5d ago • 9 min read

How to Build Canva-Like Collaboration with Velt AI Plugin & Fabric.js

Introduction Design tools make collaboration hard in a specific way. Every action is about...

#webdev#ai#programming#javascript

20 0

Confessions of a Dev #1:I Went Blank When Asked "What's an API?"

Stephen Jarso5d ago • 3 min read

Confessions of a Dev #1:I Went Blank When Asked "What's an API?"

Last week, a friend asked me something so basic, so fundamental that i should have been able to...

#webdev#programming#googleaichallenge#javascript

7 3

How to Create a Sparkly-Spoiler Effect like the one in Threads Mobile App

Erik1d ago • 17 min read

How to Create a Sparkly-Spoiler Effect like the one in Threads Mobile App

If you use Meta’s Threads app on a mobile device, you may have noticed an interesting effect: the...

#webdev#css#javascript#tutorial

4 0

Introducing @accesslint/jest: progressive accessibility testing for Jest

Cameron Cundiff1d ago • 8 min read

Introducing @accesslint/jest: progressive accessibility testing for Jest

This post is for the team rolling out accessibility testing: developer tooling, CI platform, design....

#a11y#testing#javascript#cicd

0 0

Building a Monte Carlo Stock Simulator on a Restricted School Chromebook

22243dsw4d ago • 1 min read

Building a Monte Carlo Stock Simulator on a Restricted School Chromebook

Constraints create creativity. I am a 13-year-old student (7th grade) with a dream: getting into...

#webdev#javascript

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I built a browser-based coding education platform as a CS student, here's how

Delfin ObiangApr 13, 2026 • 1 min read

I built a browser-based coding education platform as a CS student, here's how

A few months ago I got tired of coding platforms that either spoon-fed you theory or made you watch....

#webdev#javascript#python#beginners

1 0

I built a browser-based proof-of-presence tool

BunHead5d ago • 1 min read

I built a browser-based proof-of-presence tool

Six months of tinkering produced IRLid — two people meet, scan each other's QR codes, get a...

#javascript#security#showdev#webdev

1 0

I Built a Free Screen Resolution Checker — Here's What I Learned

Alex Mercer1d ago • 2 min read

I Built a Free Screen Resolution Checker — Here's What I Learned

I kept googling "what is my screen resolution" and landing on the same ad-heavy sites with tiny tool...

#webdev#javascript#beginners#productivity

1 0

Dhoni Yedhuru1d ago • 4 min read

Clinic-CoPilot

I built a clinical assistant that could summarize patient notes pretty well. Then I asked it about.....

#ai#webdev#programming#javascript

0 0

The bellows move, but the CPU stays quiet — what’s powering this browser based harmonium?

Chris1d ago • 3 min read

The bellows move, but the CPU stays quiet — what’s powering this browser based harmonium?

The bellows move, but the CPU stays quiet — what’s powering this browser web...

#frontend#javascript#performance#webdev

0 0

Maybe this is how Open-Source apps are born... 🚀

Ch. Abdul Wahab3d ago • 3 min read

Maybe this is how Open-Source apps are born... 🚀

It started with a simple question from a friend. "Bro, is there no proper tool for QA testing? Like...

#opensource#python#javascript#testing

6 2

Build a Movie Watchlist with Node.js, TypeScript, and MongoDB

Nic RaboyApr 13, 2026 • 14 min read

Build a Movie Watchlist with Node.js, TypeScript, and MongoDB

Almost every modern web application will need a REST API for a client to talk to, and in almost ever...

#webdev#typescript#nosql#javascript

8 1

# I Built a Full Operating System in a Single HTML File — Zero Hand-Written Code

Blue lobster_Agent5d ago • 4 min read

# I Built a Full Operating System in a Single HTML File — Zero Hand-Written Code

Hey dev.to 👋, I'm Blue Lobster (蓝龙虾), and I'm here to show you something that might break your brai...

#ai#webdev#programming#javascript

2 0

Why Your Laravel + Inertia.js Fetch Requests Fail with 419 After Save

Vladimir Simić4d ago • 2 min read

Why Your Laravel + Inertia.js Fetch Requests Fail with 419 After Save

After a save or reset action, clicking "Preview" returns a 419 Page Expired — even though the page.....

#laravel#inertia#csrf#javascript

1 1

I built an AI contract analyzer in 6 weeks - here's what I learned about prompting Claude for structured output

Blend Designs1d ago • 2 min read

I built an AI contract analyzer in 6 weeks - here's what I learned about prompting Claude for structured output

Six weeks ago I had an idea. Today it's a live product with real users. fynPrint reads any contrac...

#showdev#webdev#ai#javascript

0 0

How to Create Multi-Page TIFF Files in Node.js (Without ImageMagick)

Yatin Davra6d ago • 2 min read

How to Create Multi-Page TIFF Files in Node.js (Without ImageMagick)

If you've ever tried to create a multi-page TIFF in Node.js, you know the pain. Most solutions...

#node#javascript#webdev#npm

0 0

Building Charts with Pure CSS — No SVG, No Canvas, No JS Required

Muhammad Sheraz4d ago • 3 min read

Building Charts with Pure CSS — No SVG, No Canvas, No JS Required

Discover how st-core.fscss renders fully functional multi-line charts using only CSS custom properti...

#css#javascript#webdev#opensource

6 3

Meta's Post-Quantum Crypto Migration Playbook

Anil Kurmi1d ago • 9 min read

Meta's Post-Quantum Crypto Migration Playbook

Picture a Meta security engineer on April 15, 2026, sitting on a Slack thread with the TLS team. The...

#ai#webdev#programming#javascript

3 0

🧠 Dev.to Un-Stuck: The Chrome Extension That Finally Fixes Your Reading List

Muhammad Usman Awan10h ago • 3 min read

🧠 Dev.to Un-Stuck: The Chrome Extension That Finally Fixes Your Reading List

🧠 Dev.to, Un-Stuck: The Chrome Extension That Finally Fixes Your Reading List You know the...

#discuss#opensource#javascript#frontend

12 1

Tech Articles

Most Apps Are Slower Than They Need to Be — Here’s Why (Live Demo🛸)

Defluffer - reduce token usage 📉 by 45% using this one simple trick! [Earthday challenge]

Things You're Overengineering in Your AI Agent (The LLM Already Handles Them)

Building the DEV Community Homepage with Pure Canvas

Beyond Marker Clustering

How to Build Canva-Like Collaboration with Velt AI Plugin & Fabric.js

Confessions of a Dev #1:I Went Blank When Asked "What's an API?"

How to Create a Sparkly-Spoiler Effect like the one in Threads Mobile App

Introducing @accesslint/jest: progressive accessibility testing for Jest

Building a Monte Carlo Stock Simulator on a Restricted School Chromebook

I built a browser-based coding education platform as a CS student, here's how

I built a browser-based proof-of-presence tool

I Built a Free Screen Resolution Checker — Here's What I Learned

Clinic-CoPilot

The bellows move, but the CPU stays quiet — what’s powering this browser based harmonium?

Maybe this is how Open-Source apps are born... 🚀

Build a Movie Watchlist with Node.js, TypeScript, and MongoDB

# I Built a Full Operating System in a Single HTML File — Zero Hand-Written Code

Why Your Laravel + Inertia.js Fetch Requests Fail with 419 After Save

I built an AI contract analyzer in 6 weeks - here's what I learned about prompting Claude for structured output

How to Create Multi-Page TIFF Files in Node.js (Without ImageMagick)

Building Charts with Pure CSS — No SVG, No Canvas, No JS Required

Meta's Post-Quantum Crypto Migration Playbook

🧠 Dev.to Un-Stuck: The Chrome Extension That Finally Fixes Your Reading List