Get Ubuntu
Ubuntu is completely free to download, use and share.
Ubuntu Desktop
Download Ubuntu desktop and replace your current operating system whether it’s Windows or Mac OS, or, run Ubuntu alongside it.
Do you want to upgrade? Follow our simple guide
Ubuntu Server
Whether you want to configure a simple file server or build a fifty thousand-node cloud, you can rely on Ubuntu Server and its five years of guaranteed free upgrades.
Ubuntu Cloud
Ubuntu Cloud comprises installation options for the OpenStack-based Ubuntu Cloud Infrastructure and Ubuntu Cloud Guest, all from within the Ubuntu Server download.
Ubuntu中文版本 ›
只需一张空白光盘或U盘，即可下载并安装 UbuntuKylin 13.04/Ubuntu 12.04 LTS 桌面操作系统 。无论当前的操作系统是 Windows 还是 Mac OS，您都可以用 UbuntuKylin/Ubuntu取代它，或让 UbuntuKylin/Ubuntu与它共存。