Some of the best reviews are associated with the site's free app (which does include in-app purchase options), Cupid Dating.
Cupid Dating is a local and international matchmaker that allows instant chatting.
The site notes that because there is no software to download, it's perfect for those who are on older computers that may not run as quickly. You won't be able to share pictures or video chat, although you will be able to connect with people from around the world.
The challenge could be running across the right person at the right time since the chat room option tends to be quieter than one might expect on a site with so many users.
This site shouldn't be confused with the matchmaking site, Ok Cupid.
However, there are still a few chat rooms left where you can join a group of people and flirt as much as you'd like.
There are several sites where you can chat with other single people online.