* [PrestaShop](https://www.prestashop.com/) - PrestaShop offers a free, open-source and fully scalable e-commerce solution. ([Demo](http://demo.prestashop.com/), [Source Code](https://github.com/PrestaShop/PrestaShop)) `OSL 3.0``PHP`
* [SilverStripe](https://www.silverstripe.org) - easy to use CMS with powerful MVC framework underlying. ([Demo](http://demo.silverstripe.org/), [Source code](https://github.com/silverstripe)) `BSD``PHP`
* [SPIP](http://www.spip.net/fr) - Publication system for the Internet.
* [Wordpress](https://wordpress.org/) - The worlds most-used blogging and CMS engine. ([Source code mirror](https://github.com/WordPress/WordPress)) `GPLv2`
### E-Shops
* [PrestaShop](https://www.prestashop.com/) - PrestaShop offers a free, open-source and fully scalable e-commerce solution. ([Demo](http://demo.prestashop.com/), [Source Code](https://github.com/PrestaShop/PrestaShop)) `OSL 3.0``PHP`
## Download Tools
* [Alltube](https://github.com/Rudloff/alltube) - A web interface for [youtube-dl](https://github.com/rg3/youtube-dl), a program to download videos and audio from [more than 100 websites](https://rg3.github.io/youtube-dl/supportedsites.html) ([Demo](http://alltubedownload.net/)) `GPL`