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Text Inspector
Canterbury, Kent, United Kingdom
What it is
Text Inspector analyzes English writing for difficulty, readability, lexical diversity, and CEFR levels. Its overall difficulty score uses more than 200 metrics, while the CEFR Level Checker assigns levels to individual words and reports their commonness and difficulty. Listed tools include Statistics and Readability, Lexical Diversity, Scorecard, Tagger, EVP, BNC, COCA, Academic Word List and Phrases, Knowledge-Based Vocabulary Lists, and Metadiscourse Markers. The API lets people and organizations add Text Inspector analysis and scoring to their own tools or products. The maker identifies language professionals, academics, and students as potential users, including those preparing teaching materials or tests and evaluating student work. English is fully supported; other languages may receive limited statistics or lexical-diversity information. The free plan covers 250 words and automatically deletes data after six hours. Standard is listed at £9.96 monthly or £59.76 yearly; Organisation is £59.76 monthly or £358.56 yearly and supports up to 13,000 words, the largest stated limit. API access starts from £360 per year, with 30 days to test free of charge.
For and against
For
- Overall difficulty score based on more than 200 metrics
- CEFR levels for individual words
- API for use in other tools
- Free plan covers 250 words
Against
- English is the only fully supported language
- Free plan is limited to 250 words
- Analysis data and private URLs are deleted after six hours
- Largest stated word limit is 13,000
The verdict
Text Inspector offers several English-language measures, vocabulary tools, and API access. Consider its word limits and language support, and note that analysis data is cleared after six hours.
Who it suits
Text Inspector suits language professionals, academics, and students who analyze English texts or prepare teaching materials and tests. Its API may also fit people or organizations adding text analysis to their own products.
Plans and prices
Free
250 words · no extras · data deleted after 6 hours
Read 14 Oct 2026 · textinspector.com
Standard
10,000 words · exports · English Vocabulary Profile · Academic Word List
Read 14 Oct 2026 · textinspector.com
Organisation
Up to 10 people · 13,000 words · exports · English Vocabulary Profile
Read 14 Oct 2026 · textinspector.com
Developer API
Full API access · 30-day free test
Read 14 Oct 2026 · textinspector.com
API access
Full API access for use in your own applications
Read 30 Sep 2026 · textinspector.com
On the record
- Academic Word List
- The Academic Word List and phrases feature supports academic, TOEFL and IELTS material development.textinspector.com · read 14 Oct 2026
- API access
- The API requires account authentication, creates a session ID, accepts analysis submissions and returns parser results through REST endpoints.textinspector.com · read 14 Oct 2026
- API documentation
- Public documentation covers API versions released in 2019, 2020 and 2023 and provides current online v2.1.0 documentation.textinspector.com · read 14 Oct 2026
- API integrations
- The API lets people and organisations incorporate Text Inspector analysis and scoring into their own tools and products.textinspector.com · read 30 Sep 2026
- API SDK example
- The v2.1.0 documentation includes PHP cURL code for creating an authenticated API session.textinspector.com · read 14 Oct 2026
- Award
- The British Council named Text Inspector by Stephen Bax and Versantus the 2017 ELTons Digital Innovation winner for online CEFR-benchmarked text analysis.britishcouncil.org · read 14 Oct 2026
- British National Corpus
- The British National Corpus feature compares usage with British English corpus data.textinspector.com · read 14 Oct 2026
- CEFR analysis
- Its CEFR Level Checker provides a CEFR level for individual words, including their commonness and difficulty.textinspector.com · read 30 Sep 2026
- COCA integration
- The Corpus of Contemporary American English feature analyzes text against American English usage.textinspector.com · read 14 Oct 2026
- Company
- The pricing page identifies Weblingua Ltd as the company behind Text Inspector and gives its England and Wales registration number as 11275226.textinspector.com · read 30 Sep 2026
- Custom vocabulary
- Users can upload a personal Known Words list and see it separately in EVP, BNC and COCA results, graphs and exports.textinspector.com · read 14 Oct 2026
- Data retention
- The FAQ says analysis data is cleared from the website after six hours and each analysis has a private URL that is deleted from the servers after that time.textinspector.com · read 30 Sep 2026
- English Vocabulary Profile
- The English Vocabulary Profile feature reports CEFR levels for individual words.textinspector.com · read 14 Oct 2026
- Included tools
- Listed tools include Statistics and Readability, Lexical Diversity, Scorecard, Tagger, EVP, BNC, COCA, Academic Word List and Phrases, Knowledge-Based Vocabulary Lists, and Metadiscourse Markers.textinspector.com · read 30 Sep 2026
- Independent classroom finding
- A teacher’s case study found Text Inspector flagged feedback vocabulary above students’ level and led to recommendations to simplify or explicitly teach those terms.clareseltcompendium.wordpress.com · read 14 Oct 2026
- Independent use
- Navitas presents Text Inspector as a lexical-profiling tool for aligning course and assessment texts with CEFR standards.learningandteaching-navitas.com · read 14 Oct 2026
- Intended users
- The maker describes the tool as useful for language professionals, academics and students, including preparing teaching materials, tests and evaluating student work.textinspector.com · read 30 Sep 2026
- Language support
- English is fully supported; other languages may return only limited statistics or lexical-diversity information.textinspector.com · read 14 Oct 2026
