It lets you load a webpage/picture/video/file in a floating window that will always stay on top.

So if you're working in your editor full screen, you can keep this floating window on top. And keep most of your screen's real estate.

I hope this answer your questions.

[HIJACKING COMMENT]

HN has blocked me from commenting too much, but I wanted to share some promo codes !

--- My initial message that I can't post anymore ---

I'm Yoann Moinet, I've developed Fenêtre.

Thank you so much for all your valuable feedbacks, I love it.

I've worked on it with my friend Max William Neilson, who took care of the designs.

We also are on Product Hunt https://www.producthunt.com/posts/fenetre

To repeat what I answered to other questions.

- Windows is coming.

- I'll have a look for *nix.

- Will fix mobile as soon as I have some time.

- I choose the domain name, and I love it. But it gave us a hard time in multiple places, because special chars are not handle well everywhere!

- Similar to Helium indeed (I love it too) but with a different feature set.

Here are some promo codes for you.

H774F7MYTMTY

97PL69RMMX47

FF9WTPXK7KKJ

7H6Y69F4FJNN

HRHFM9LJF4X6

HLTYRXX3MLFE

P64ERPPTRYWY

PPMKWHR99KAF

47ET7J94WLWP

L9TY7K339LHK