I have a list of 18600+ German words (as of June 29, 2015) with English translations in Excel file (nouns with plurals; verbs in 3 forms; explanatory notes / synonyms to the words for which such explanatory notes / synonyms were available in the original dictionary; proper clauses (Akkusativ, Dativ, Genitiv, or Nominativ) to be used with verbs, if such clauses were available in the source dictionaries; 15% of the words have example sentences). About 75% of the words in the list come from SPIEGEL, 10% from Frankfurter Allgemeine Zeitung, another 10% from the German version of Euronews, and the remaining 5% from other sources. The list has been compiled over the past 16 months. Looks way better than anything I have seen on the Internet so far (see below a screenshot of the latest words added to the list).
If interested, write to me at this e-mail: kiaoranaATbigmir.net
P.S.: Further comment that might be of interest: The largest dictionary of the German language (“Große Wörterbuch der deutschen Sprache”) includes 200.000 words. Of these, 70.000 words belong to the so-called standard vocabulary, with the rest being technical terms, slang and regional dialects. My self-compiled dictionary, on the other hand, includes only about 26% of the standard vocabulary (that is, of 70.000). Considering that I haven’t come across any other words during the past 16 months (that is, in addition to the ones that are now included into my word list), it would not be much of an exaggeration to say that these 26% of the words represent some of the most frequently used German words (and phrases). That’s the key value of my list—it contains some of the most useful German words.