views:

120

answers:

3

As the title reads, I'm looking for open source alternatives to balsamiq mockup for prototyping. Anyone knows of an equally good alternative that's open source or basically freeware.

+2  A: 

Mockingbird is free during beta

Firefox's pencil add-on is free forever

Steve Claridge
+1  A: 

WireframeSketcher is not open-source but it's free for open-source developers. If you are one feel free to drop me an email.

Peter Severin
A: 

No open source ones I know of but there is a new start up jMockups using HTML 5 and the canvas element. The free version restricts you to 5 mocks per month with a $24 per month pro version for up to 200.

Dave Anderson