RDF Surveyor is an easy-to-use exploration tool of semantic datasets. Try it here!.
RDF Surveyor can be plugged in any CORS-enabled SPARQL 1.1 endpoint without requiring any installation.
These are some of the features of RDF Surveyor:
Intuitive user interface that completely hides the RDF/SPARQL syntax
It gives an overview of the repository contents, supports class navigation and individual visualization
No installation required for exploring any RDF dataset
Works with large datasets such as DBpedia
Prepared to work with multilingual datasets
The UI adapts to mobile devices
The source code is available at https://github.com/guiveg/rdfsurveyor.