Word List Duplicate Remover

The cleaner trims leading and trailing whitespace, drops empty lines, and optionally converts a comparison key to lowercase. It keeps the spelling and position of the first occurrence while removing later matches. Sorting happens only after deduplication, so the original order remains available. Inflected forms, punctuation, accents, and full-width characters remain distinct because combining them could erase genuinely different study items.

Before importing the result, check whether repeated words represent different meanings. Keep separate entries when the part of speech or definition changes, and label that distinction in the prompt. Cleaning spelling variants before card creation prevents duplicated reviews and makes the deck easier to search. A unique word list is only a source: it still needs an unambiguous question and answer to become effective retrieval practice.

Your inputs and calculations stay in this browser, and no account is required. Save or print the result if you need a record, then turn it into one concrete next action. A calculator is most useful when it changes the next study session: isolate the weakest material, express it as a question you can answer without notes, and schedule another attempt after a short delay. Official rules from your school, course, test provider, or assignment always take priority over this planning estimate.