This free English Writing Vocabulary Checker analyses the words, expressions and sentence patterns in your text using a CEFR-based vocabulary database.

The tool recognises more than 10,000 English words and over 2,000 idioms and multi-word expressions.

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When you paste your text, the system identifies the CEFR band (A1–C2) of each word, highlights advanced vocabulary, and calculates your personalised C2ES Score.

This type of analysis is especially useful for students preparing for IELTS, Cambridge B2 First, C1 Advanced, and C2 Proficiency, as well as for academic writing and general English improvement.

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Use this tool to check your vocabulary level, discover areas to improve, and build more advanced English step by step.