Programs for drawing interface prototypes on the fly?

Question

User interface

Dear colleagues!!
I have a question. Perhaps this is not the first time you have answered such questions,
but please take some time.
Are there any well-known programs like this?
That it was possible to draw quickly and send in the form of a picture to the
customer? It would help a lot. I do the backend, but sometimes I help with the frontend.
I'm sorry for the bad interfaces.. In Paint and Word, it's inconvenient to sketch prototypes
with an approximate layout "as it should be". Thank you for your attention.

Answer 1

balsamiq mockup?

Answer 2

we use ninjamock for such things

Answer 3

Visit prototypingtools.co for a comparison of the most popular prototyping tools. You can pick up something to your liking.

Answer 4

www.invisionapp.com

Answer 5

my favorite: Cacoo ( ref. link )
I highly recommend it, I use it myself and advise others I
made a demo diagram , no need to register - try it