Online resource for creating schematic page layout for a designer

Question

Design

Good afternoon.
Once upon a time I saw a tool on the net designed to create a schematic layout of a page.
A very handy thing for a customer who wants to show the main elements of the pages to the designer.

Those. is an online tool that allows you to select various page elements (navigation, menu item, text, blocks, etc.) in a schematic view, and place them on a sheet in any order. Then it can be saved and shown to the designer, on the basis of which the designer already knows the structure of the page and is creative in the way that is set by the site scheme.

I googled, but I couldn’t find anything sensible for my keywords (perhaps I didn’t choose the keys for the search well). Therefore, I turn here.
Thanks in advance.

Answer 1

Search for "mockups" and "sketchy". Multiple results:
balsamiq.com/products/mockups/
moqups.com/
mockups.me/

Answer 2

Choose ;-)

Answer 3

I like www.gliffy.com

Answer 4

Thank you all very much.
Indeed, for the keyword "mockup" there are enough search results that satisfy me.