Phrozn is described as 'is static site generator written in PHP'. There are more than 50 alternatives to Phrozn for a variety of platforms, including Online / Web-based, Self-Hosted solutions, Windows, Linux and Mac. The best alternative is WordPress, which is both free and Open Source. Other great apps like Phrozn are Ghost (Free Personal, Open Source), Grav (Free, Open Source), Jekyll (Free, Open Source) and Blogger (Free).
BardCanvas is an Open Source CMS that fits perfectly for blogs/forums/social networks. It is fast (through several cache levels), heavily optimized (it wont collapse the server in high traffic conditions) and constantly improved.
Create a beautiful website with no design or IT skills using the Rocketspark website builder. Enjoyably easy DIY web editing and ecommerce. Great for Designers and Graphic designers, manage your clients with the Rocketspark Studio.