LLEX helps you find and study the difficult words in a text so that you can read it more easily. It's a great tool for students and teachers of EFL/ESL.
LLEX
Leander's Lexicon Extractor (LLEX) is a free online tool that allows students and teachers of English to quickly extract and list important vocabulary from a text.
Users can choose which vocabulary levels they would like to extract and link them to Japanese translations, pronunciations, English definitions, and more.
LLEX was created by Leander Hughes with special thanks to Kaz Wurzinger and Alex Budde for their expert advice and also to John Finucane for the layout.