The decentralized Exchange has been seen to be one of the most secured Exchange platform. The choice of this Exchanges requires you to make a very good and indept studies on which will suits you better and also recommendations form the users on various platforms is quite important
The barterdex is a decentralized Exchange, which been in existence since 2017. One thing to note for now is that the exchange is being under redevelopment as it is being worked upon and not accessible. You can test the new version on a website which I might not be permitted to share the url here.
The exchange has a very hard to use user interface which is being reformed now the trading fees were superb, as market makers don't pay anything, and market takers pay as little as 0.15%. though deposit is only through Fiat, which is common to most dex exchanges. I recommend you stay away for now and await for the official release of the new platforms