Google Chrome Canary provides you with all the newest features and tools of Chrome long before they roll out for a stable release.
You will be on the cutting edge of all that is Chrome with this development channel browser that gives you access to experimental web platform APIs and more - if you are one of those users that like testing out new features. etc., then this is for you as it is the first to receive them. Keep that in mind as you use it as there will be bugs and should be considered the most unstable channel for Chrome. With that in mind, users are encouraged to report their experience, even if you are not a developer.
If you sign on for the Google Chrome Canary channel, be warned, it receives daily updates, and Google points out that Chrome Canary shouldn't be regularly used and cannot be set as your default browser. That said, it can be installed and utilized alongside the stable version - you can even use it on your Android device.