You can now filter by level (basic, intermediate, advanced), part of speech (noun, verb, adjective, adverb), and word length (short, medium, long) to get exactly the kind of words you want. Case options include lowercase, Title Case, and UPPERCASE.
Results can be viewed as a list, a grid of cards, or flashcards, and you can flip through cards with the arrow keys. Save words you like to your word list, then pull them up later or export them as plain words, CSV, or a single comma-separated line.
Since this is a tool people use repeatedly, we added keyboard shortcuts too — Space to generate again, C to copy the words, and 1, 2, 3, 0 to jump between levels.