Application for prototyping web application interface for linux?

Question

linux

Guys, I'm looking for an application for prototyping web applications for Linux.
I looked online, but nothing impressed me.
I want to see now the usual application. Of the free ones, I found only pencil, but also did not inspire.
Now I paid attention to https://www.edrawsoft.com and https://www.visual-paradigm.com/features/
That is, I’m even ready to buy a good application, tell me what else can be a cool application?

Answer 1

Pay attention to https://www.figma.com/

Answer 2

pencil.evolus.vn - the most worthy of the free cross-platform.
Well, here's a paid https://habrahabr.ru/post/256415/ - paid.
No more arnalogs axure will not start.

Answer 3

Maybe not the best app for interface prototyping, but the one I know best for flowcharts and ER diagrams is Dia .