Assess the difficulty level of English language texts with an award winning linguistic analysis tool.

Text Inspector gives you detailed feedback, using over 200 metrics benchmarked to the CEFR, so you can design texts for teaching, assessing and learning English.

Use Text Inspector to measure the difficulty of any English text

Winner of the British Council Award for Digital Innovation

Text Inspector: Winners of the British Council ELTon award for Digital Innovation

Try Text Inspector now

Analyse up to 250 words free – right here

Want more features or need to analyse a longer document?

Upgrade to a full subscription to analyse longer texts, export your data, access exclusive subscriber-only tools and benefit from full data security.

Prices start at just £2.99 per month (around $4.50, about the same as a cup of coffee)

Analyse any text in detail /Explore any text in detail

Watch our short explainer video below to discover how Text Inspector works.

An award-winning tool created by leading linguistics experts

Text Inspector was created by renowned Professor of Applied Linguistics, Stephen Bax and is the winner of the 2017 British Council ELTons Digital Innovation Award. Text Inspector is also supported by its academic partners The Centre for Research in English Language Learning and Assessment (CRELLA).

Text Inspector: Winners of the ELTons 2017 Award
Text Inspector was produced in collaboration with CRELLA
Professor Stephen Bax created Text Inspector
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Using the latest research into Applied Linguistics, our tool is trusted by universities, colleges and organisations across the world, including:

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Why analyse vocabulary?

Vocabulary forms the core building blocks of language.

A rich vocabulary makes the four core skills of speaking, listening, reading and writing easier and without it, learners can’t understand language, express themselves or be understood.

In the words of renowned British linguist, David Wilkins; “…while without grammar very little can be conveyed, without vocabulary nothing can be conveyed”

Why does Text Inspector focus on analysing vocabulary?

Why use Text Inspector?

  • Check the level of learners’ texts
  • Design and create better learning materials
  • Determine the CEFR level of a text
  • Assess written texts more easily
  • Conduct linguistics research
  • Improve your use of English
  • Gain insight into real-life language usage
  • Select better learning materials for ESL students
  • Understand real-world use of the English language
  • Compare the difficulty levels of different texts

What our users say

Elaine, teacher and MA student in Spain

I analysed three main textbooks used in secondary schools in the region where I live to see how much key vocabulary they shared. Thanks to Text Inspector I discovered that the vocabulary they had was from a disproportionately wide range of levels, from A1 to C2. I also found a high proportion of vocabulary not listed. Thanks! Text Inspector formed an important part of the investigation.

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Williams, Sarah. Text inspector [online]. English Australia Journal, Vol. 33, No. 2, 2018: 80-83.

This system is ideal for language professionals, academics and students conducting
linguistic research. Overall, I found Text Inspector to be a fascinating tool to explore. It is fast and comprehensive, taking a matter of seconds to produce pages of data, and it allows users to analyse reading, writing and listening texts with great accuracy and reliability. I recommend all English language institutions and teaching professionals wishing to ensure that their materials are pitched at the right level utilise Text Inspector.