Are there any free tools for collaborative prototyping interfaces?

There are Ninjamock, he's cool, but it cannot be used for cooperative prototyping. You can show the prototype to friends, but together you can not do.

Whether there are free collaborative tools to create site layouts?

Ninjamock + Google Docs - stuff like that.
July 9th 19 at 13:50
2 answers
July 9th 19 at 13:52
invision app?
July 9th 19 at 13:54
Google Docs + = put the plugin in the Google docks and everything works fine.
You can read more or a screenshot of this miracle? - Dixie_Quigley commented on July 9th 19 at 13:57
: much much more - browse or search link and all. - Kyleigh_Hills commented on July 9th 19 at 14:00

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