Software - This column shows the software type or software provider that the online casino is powered by. There are many different software types and you will find that some online casinos use the same software type and even find some that use different software types for their no download casino version and their download casino version.
Payout - The payout rate is shown as a percentage and is the overall payout rate percentage for the casino across all games.
Games - The number of games that are available at the no download casino, the normal trend is for no download versions of a online casino to have less games than their download version.
Type - This is the type of technology used for the games, this is normally either Flash or Java which you will need on your machine in order to play at these no download casinos. Normally there is a minimum version requirement for both Flash and Java and this is constantly changing as new versions are released. Both Flash and Java are free to download.
The majority of the no download versions of online casinos are called flash casinos which require flash player, this is common for a lot of websites now and is just an add on to your browser. The great thing about the casinos using flash for their instant play casinos is that this makes them free no download casinos, as well as making them available to Mac users and Linux users, Mac and Linux users should be able to play at all of these casinos, although the majority of the casinos do not announce support for Mac's and Linux, if you have the correct version of flash working on your machine then these casinos should work regardless of the operating system you are using.