CEFR Vocabulary Checker
Paste any English text. Get a per-word CEFR level (A1–C2) and the overall difficulty of the passage. Useful before assigning a reading task.
Frequently asked questions
How does the checker decide each word's CEFR level?
Known words are matched against a built-in English Vocabulary Profile lookup (~480 high-frequency lemmas across A1–C1). Unknown words fall back to a length-and-suffix heuristic.
Is my text uploaded anywhere?
No. Analysis runs entirely in your browser. Nothing leaves your device.
How long can the input be?
Up to about 5,000 characters comfortably. Longer texts still work but may pause your tab briefly while tokenizing.
Can I export the result?
Yes — copy the highlighted text or the per-level breakdown into a Google Doc or share it with the student.
Lock the level for your next worksheet
Edooqoo creates printable worksheets using teacher-selected CEFR levels.
Try Edooqoo free