Text Inspector
Text Inspector: A focused English analysis tool with deep vocabulary measures and API access. Ranked #6 of 25 in Readability Checkers by our editors (8.4/10); pricing: Free plan · 30-day trial; best for english analysis with vocabulary depth and API access.
At a glance
- Editor score8.4 / 10
- PricingFree plan · 30-day trial
- Best forEnglish analysis with vocabulary depth and API access
- Free planYes
- Readability formulas3 formulas
- Founded2011 · Canterbury, Kent, United Kingdom
- Facts checked20 Sep 2026
Where it wins
- Combines three named readability formulas with sentence statistics
- Adds CEFR, lexical diversity, corpus and vocabulary analysis
- Offers API access for integrating text analysis into applications
Where it doesn't
- Analysis is limited to English text
- The Free plan has a 250-word limit
- Export and advanced vocabulary tools require paid plans
Our verdict on Text Inspector
Text Inspector is a web-based English text analysis tool for language educators, exam boards, researchers, material developers and organisations. It evaluates text difficulty, CEFR levels, vocabulary, lexical diversity and readability. Its core readability scoring includes Flesch Reading Ease, Flesch-Kincaid Grade Level and the Gunning Fog Index, alongside sentence statistics, parts-of-speech tagging and other linguistic measures. The product is also available through an API for applications that need integrated text analysis.
The published plans are structured around progressively broader access. The Free plan has a 250-word limit. Standard adds data export, English Vocabulary Profile analysis, Academic Word List analysis and a Scorecard. Organisation includes those same capabilities for up to 10 people. Developers provides full API access, while the API has a separate 30-day free test period. The pricing page presents plans on monthly and yearly terms, and the product also offers a 30-day trial. This structure suits individual evaluation, paid analytical work, small teams and application developers, depending on the required access level.
Text Inspector’s main strength is breadth within English-language analysis rather than a narrow readability score. Along with three formulas and sentence statistics, it compares text with the British National Corpus and Corpus of Contemporary American English, examines vocabulary through the English Vocabulary Profile, and includes lexical diversity and parts-of-speech analysis. That makes it a strong fit for users who need linguistic depth for teaching, research, assessment or content development. It is less suitable for teams that need multilingual analysis, or for users seeking only a simple, unrestricted readability check. Choose it when vocabulary, CEFR and corpus context matter; consider an alternative when English-only analysis does not fit the workflow.
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Text Inspector pricing
All 4 Text Inspector plans and prices →
Text Inspector fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Not verified |
| Readability formulas | 3 formulas |
| Sentence analysis | Yes |
| Clarity recommendations | Yes |
| Browser extension | Not verified |
| API access | Yes |
| Language support | English |
| Free trial | 30 days |
| Deployment | Cloud |
| Platforms | Web |
| Support | Email, Docs |
| Built for | Solo, Small business, Mid-market (editorial estimate) |
| Pricing | Free plan · 30-day trial (source) |
| Website | textinspector.com |
| Facts checked | 20 Sep 2026 |
Alternatives to Text Inspector
- Eclipse Readability StudioA free, open-source desktop checker for detailed multilingual document analysis.9.4
- ReadableA deep web and document readability checker for professional content teams.9.2
- Check ReadabilityA free browser checker combining nine formulas with practical clarity guidance.9.0
See all Text Inspector alternatives →
Text Inspector vs the competition
- Text Inspector vs Eclipse Readability Studio
- Text Inspector vs Readable
- Text Inspector vs Check Readability
- Text Inspector vs ProWritingAid
- Text Inspector vs Readability Formulas
- Text Inspector vs Slick Write
Compare Text Inspector with any tool side by side →
Also Ranked In
Text Inspector is ranked in 2 of our directories.
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Featured on iTechGuides
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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