Wireframe tools

I used balsamiq a lot. For me it was the easiest and fastest way to create simple layouts and duplicate them and so on. You can even install a bootstrap style in balsamiq and many more styles. It's also free, which makes it interesting for me as a formal student ;)

I also like the style of balsamiq. It's not beautiful, but when you look at it you know it's a wireframe or a prototype :D

Link: https://balsamiq.com/

Thanks for the tip, That's the one I'll be using then. :)

I do not see a free version with Balsamiq, only 30-day free trial. Has the plan changed or the free version is hidden somewhere else?

@ijklim Yeah it's only 30 days, but you can redownload it every time ;)

Did you see Pencil Project? It's open source. http://pencil.evolus.vn/