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Head-to-head · Readability Checkers

Text Inspector vs Slick Write

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Text Inspector #6 in Readability Checkers 8.4/10 Free plan · 30-day trial Free planFree trial✓ 3 of 4 features Visit Text Inspector
Slick Write #7 in Readability Checkers 8.2/10 Free plan Free plan✓ 1 of 4 features Visit Slick Write

Text Inspector leads on 0 checks, Slick Write on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreText Inspector · 8.4/10
  • Free planboth
  • Free trialonly Text Inspector
  • Most featuresText Inspector · 3 of 4

Text Inspector scores higher on our rubric for readability checkers: 8.4 against 8.2 out of 10; our editors rank them #6 and #7.

Text Inspector is the better fit for english analysis with vocabulary depth and API access. Slick Write is the better fit for free readability and style checking in browsers.

  • Text Inspector fits best

    English analysis with vocabulary depth and API access

  • Slick Write fits best

    Free readability and style checking in browsers

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Side by side

Feature Text Inspector 8.4/10 Visit ↗ Slick Write 8.2/10 Visit ↗
At a glance
Editor score 8.4 8.2
Ranking #6 in Readability Checkers #7 in Readability Checkers
Best for English analysis with vocabulary depth and API access Free readability and style checking in browsers
Pricing model Free plan + paid Free
Starting price — Free
Free plan ✓ ✓
Free trial 30 days —
Deployment Cloud Cloud, Browser extension
Platforms Web Web, Chrome extension
Built for Solo, Small business, Mid-market Solo, Small business
Features Text Inspector 3/4 · Slick Write 1/4
Sentence analysis ✓ (best) Not checked yet
Clarity recommendations ✓ (best) Not checked yet
Browser extension Not checked yet ✓ (best)
API access ✓ (best) Not checked yet
Specs
Readability formulas 3 formulas Not checked yet
Language support English Not checked yet
Our review
Pros
  • 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
  • Free access to grammar, style, flow, and readability checks
  • Analyzes vocabulary variety, passive voice, repetition, and sentence structure
  • Chrome extension supports Google Docs, WordPress, selections, and text boxes
Cons
  • Analysis is limited to English text
  • The Free plan has a 250-word limit
  • Export and advanced vocabulary tools require paid plans
  • Browser-focused platform coverage limits where it can be used
  • Checks English writing rather than offering broad language coverage
  • Its wide set of analyses may require time to interpret effectively
Our verdict

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…

Read the review →

Slick Write is a free, browser-based writing checker for bloggers, novelists, SEO professionals, students, and other writers working in English. It combines grammar error checking with stylistic issue detection, sentence structure…

Read the review →
  1. Text InspectorReadability Checkers 8.4Free plan · 30-day trial
  2. Slick WriteReadability Checkers 8.2Free plan

Strengths and trade-offs

  • Text Inspector — 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

  • Slick Write — where it wins

    • Free access to grammar, style, flow, and readability checks
    • Analyzes vocabulary variety, passive voice, repetition, and sentence structure
    • Chrome extension supports Google Docs, WordPress, selections, and text boxes

    Where it doesn't

    • Browser-focused platform coverage limits where it can be used
    • Checks English writing rather than offering broad language coverage
    • Its wide set of analyses may require time to interpret effectively

More comparisons

All readability checkers comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update