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Cool Links

Cool links are a collection of interesting things I find around the web. They can range from fun dumb websites to deep thought-provoking essays, or more commonly something in between. The feed here updates frequently, and I compile everything into a blog post on the last day of each month.

Illustration of Cool Links in a laptop screen, with a hand pointing at them in a cool way.

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9 links from October 2025

The web behind glass , by Thomas Günther

Cool Link
2025-10-31
#dev

Thomas gives a bunch of examples of things you should avoid doing if you want your website to look good on Safari’s new Liquid Glass design. All those don’ts are perfectly illustrated by a website that didn’t take Liquid Glass into account… apple.com.

The new Safari is such an incredible failure.

Open

AI can code, but it can't build software , by Matias Heikkilä

Cool Link
2025-10-29
#ai #dev

Yes! Any good developer will tell you that coding is the easiest part of the job. Making software actually go beyond a feature demo is what’s really hard. It’s something I’ve been taught ever since I began working on the field, actually. Learning to code is essential, but learning where to put the code and how to foresee all the hundreds of complexities is my actual job.

Expectations, feature scalability and security are very much human components of the job and can’t be properly done by something that’s not human.

Open

Edit Photo , by Pintura Labs

Cool Link
2025-10-29
#tech #app

Okay, this is pretty cool. This lil’ website allows you to do quick image edits right on your browser. Nothing new there - except for the fact that it actually works with no account, no ads, no popups, no upsell. Truly a marvel!

Open

Edit Video , by Pintura Labs

Cool Link
2025-10-29
#tech #app

The same as Edit Photo, but for Videos!

Open

Squoosh

Cool Link
2025-10-29
#tech #app

Another cool little web utility. This one lets you squoosh your image files to greatly reduce their file size without any significant loss in quality. Especially useful if you have a website of your own and want to optimize your images.

Open

Write Code That Runs in the Browser, or Write Code the Browser Runs , by Jim Nielsen

Cool Link
2025-10-20
#dev

Really cool thoughts on the tradeoffs between control and performance in web development, and how whatever you build will never outperform the browser’s built-in APIs.

Open

A cartoonist's review of AI art , by The Oatmeal

Cool Link
2025-10-10
#tech #ai #deep-read

A really fun web comic of an artist explaining his thoughts about AI art. I think I agree with all the points there.

Open

Notebook Navigator - Modern File Explorer for Obsidian , by Johan Sandberg

Cool Link
2025-10-09
#tech

This is beautiful. This Obsidian plugin completely overhauls the file navigation and makes it actually usable. It fixes one of the app’s biggest problems for me: navigation.

You can add custom icons to folders as well, which I used to need a separate plugin for.

Open

CSS HDR Gradients , by Adam Argyle

Cool Link
2025-10-06
#dev

A really cool CSS gradient generator that supports all the new CSS color stuff that’s been coming out in the past years (and that I honestly don’t know much about).

Aside from the cool UI and easy-to-understand code it generates, it can generate HDR and SDR gradients; which means that on supported browsers and devices, your gradient might pop out with higher dynamic range (and have the SDR as a fallback). Great if you really want the colors to pop.

Open
© 2026 Matheus Fantinel
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