I have various sparql queries that i'd like to test. Is there a website or simple programm that allows me to test these queries?
I dont want a validator like this one, but I'd like to really execute the query and get a result.
As pointed above you might see if a provider has given a web interface over their SPARQL endpoint. They normaly do e.g. Dbpedia,BBC Backstage etc.
For a tool that allows you to enter an arbitrary endpoint so you can query it you might want to check Twinkle. It's the only program that I know that does this.