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📰 Dev.to · Mack

Articles from Dev.to · Mack · 25 articles · Updated every 3 hours · View all reads

All ⚡ AI Lessons (8958) ArXiv cs.AIDev.to · FORUM WEBForbes InnovationOpenAI NewsDev.to AIHugging Face Blog
How to Build a Zero-Dependency Web Tool with Vanilla JavaScript
Dev.to · Mack 1mo ago
How to Build a Zero-Dependency Web Tool with Vanilla JavaScript
A practical architecture for building fast, privacy-respecting browser tools with no npm, no build step, and no framework. Includes real code from a production
The Best Free Developer Tools You're Not Using in 2026
Dev.to · Mack 1mo ago
The Best Free Developer Tools You're Not Using in 2026
9 genuinely useful browser-based dev tools that work offline, need no signup, and respect your privacy. Bookmarks you'll actually keep.
Why I Built a Privacy-First Image Converter (No Uploads, No Backend)
Dev.to · Mack 1mo ago
Why I Built a Privacy-First Image Converter (No Uploads, No Backend)
Every image converter I tried wanted me to upload my files to some random server. Screenshots with...
Automate Website Thumbnails for Your Link Aggregator or Directory
Dev.to · Mack 1mo ago
Automate Website Thumbnails for Your Link Aggregator or Directory
Build a pipeline that automatically generates thumbnails for any URL — perfect for directories, bookmark managers, and link aggregators.
How to Convert PNG to WebP (and Why You Should) — Free, No Upload Required
Dev.to · Mack 1mo ago
How to Convert PNG to WebP (and Why You Should) — Free, No Upload Required
If you've ever wanted to convert PNG to WebP free online without uploading your images to some random...
I Built a Free Image Converter That Never Uploads Your Files
Dev.to · Mack 1mo ago
I Built a Free Image Converter That Never Uploads Your Files
I Built a Free Image Converter That Never Uploads Your Files Ever used an online image...
Build a Visual Regression Testing Pipeline in Under 50 Lines
Dev.to · Mack 1mo ago
Build a Visual Regression Testing Pipeline in Under 50 Lines
Visual regression testing catches UI bugs that unit tests miss. A button that shifted 3px left. A...
How to Preview and Test HTML Email Templates Programmatically
Dev.to · Mack 1mo ago
How to Preview and Test HTML Email Templates Programmatically
How to Preview and Test HTML Email Templates Programmatically Email templates are...
Automate Social Media Preview Images with a Screenshot API
Dev.to · Mack 1mo ago
Automate Social Media Preview Images with a Screenshot API
Social media preview images (Open Graph / Twitter Cards) can make or break your click-through rates....
I Built a Recipe Extractor Because I'm Tired of Reading Life Stories Before Getting the Ingredients
Dev.to · Mack 1mo ago
I Built a Recipe Extractor Because I'm Tired of Reading Life Stories Before Getting the Ingredients
You know the drill. You google "easy chicken tikka masala recipe." You click the first result. And...
I Built a Simple Smart Home Dashboard Because Home Assistant's UI Made Me Cry
Dev.to · Mack 1mo ago
I Built a Simple Smart Home Dashboard Because Home Assistant's UI Made Me Cry
The breaking point I love Home Assistant. I really do. It's incredibly powerful, endlessly...
I Built a Free Email Signature Generator in a Day — No Backend Required
Dev.to · Mack 1mo ago
I Built a Free Email Signature Generator in a Day — No Backend Required
The idea I needed an email signature. The existing generators are either ugly, paywalled,...
How to Debug Memory Leaks in Node.js (A Practical Guide)
Dev.to · Mack 1mo ago
How to Debug Memory Leaks in Node.js (A Practical Guide)
Memory leaks in Node.js are sneaky. Your app works fine in dev, passes all tests, then slowly eats...
How to Screenshot Any Website with Python (3 Methods Compared)
Dev.to · Mack 1mo ago
How to Screenshot Any Website with Python (3 Methods Compared)
Taking screenshots of websites programmatically is one of those tasks that sounds simple but gets...
Build an Automated Social Card Generator in 15 Lines of Python
Dev.to · Mack 1mo ago
Build an Automated Social Card Generator in 15 Lines of Python
Generate beautiful link preview images for every blog post automatically. No design tools, no templates — just code.
Stop Using setTimeout for Polling — Here's What to Do Instead
Dev.to · Mack 1mo ago
Stop Using setTimeout for Polling — Here's What to Do Instead
Raise your hand if you've written this: function pollStatus() { fetch('/api/status') ...
Build a Visual Website Monitor in 30 Lines of Code
Dev.to · Mack 1mo ago
Build a Visual Website Monitor in 30 Lines of Code
You know what nobody tells you about side projects? They break silently. Your deploy goes out, CSS...
How to Generate Open Graph Images Automatically in Ruby on Rails
Dev.to · Mack 1mo ago
How to Generate Open Graph Images Automatically in Ruby on Rails
Stop manually creating OG images. Here's how to generate them automatically for every page in your Rails app — from DIY to API.
Automate Social Media Preview Images for Your Blog (No Design Skills Needed)
Dev.to · Mack 1mo ago
Automate Social Media Preview Images for Your Blog (No Design Skills Needed)
How to auto-generate OG images for every blog post using HTML templates and an API. Works with any framework.
Playwright in Docker: The Browser Path Gotcha That'll Waste Your Afternoon
Dev.to · Mack 1mo ago
Playwright in Docker: The Browser Path Gotcha That'll Waste Your Afternoon
If your Playwright screenshots work locally but fail in Docker with 'Executable doesn't exist', here's the fix.