Mockup Builder Free Application

Hello everyone,

I came across a mockup builder application very similar to Balsamic.
With this tool you can easily create examples of your sites and show them to everyone spreading the ideia in a simple and fast way.

This tool is free and you can even use it directly online, instalation free.

Have fun making use of it. 

Here's another good example:
In online and have a lot of elements to use.

Best Regards,
Gonçalo Martins
Here's another free resource:


- mockups
- prototyping
- realtime collaboration, chat
- image editor

Here's another interesting alternative and free alternativae. Maqetta is a browser based open-source tool for wireframing.
Check it out at: