Suggestions appear as you type. Use the up and down arrows to choose one and Enter to open it.

This page's audience our own tag's counts — open to see them
–Visits
–Page views
–Clicks to vendors
–Time on page
–Reading now
Clicks to vendors, by tool
  • –
Top countries
  • –
Devices
  • –

– · visits, page views and clicks counted by our own tag, which counts more than our checked analytics; every figure rounded down · how we count

Head-to-head · Readability Checkers

Check Readability vs Slick Write

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score Check Readability #3 in Readability Checkers 9.0/10 Free plan Free plan✓ 3 of 4 features Visit site
Slick Write #7 in Readability Checkers 8.2/10 Free plan Free plan✓ 1 of 4 features Visit Slick Write

Check Readability leads on 0 checks, Slick Write on 0, and 4 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreCheck Readability · 9.0/10
  • Free planboth
  • Most featuresCheck Readability · 3 of 4

Check Readability scores higher on our rubric for readability checkers: 9.0 against 8.2 out of 10; our editors rank them #3 and #7.

Check Readability is the better fit for free browser-based readability checking. Slick Write is the better fit for free readability and style checking in browsers.

  • Check Readability fits best

    Free browser-based readability checking

  • Slick Write fits best

    Free readability and style checking in browsers

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Check Readability 9.0/10 Visit ↗ Slick Write 8.2/10 Visit ↗
At a glance
Editor score 9.0 8.2
Ranking #3 in Readability Checkers #7 in Readability Checkers
Best for Free browser-based readability checking Free readability and style checking in browsers
Pricing model Free Free
Starting price Free Free
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Browser extension Cloud, Browser extension
Platforms Web, Chrome extension Web, Chrome extension
Built for Solo, Small business Solo, Small business
Features Check Readability 3/4 · Slick Write 1/4
Sentence analysis ✓ (best) Not checked yet
Clarity recommendations ✓ (best) Not checked yet
Browser extension ✓ ✓
API access Not checked yet Not checked yet
Specs
Readability formulas 9 formulas Not checked yet
Language support English Not checked yet
Our review
Pros
  • Nine readability formulas plus a consensus grade level
  • Actionable guidance on sentence length, complexity, and word choice
  • Chrome extension analyzes selected text and full webpages
  • 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
  • English-language analysis only
  • Chrome extension is specific to the Chrome browser
  • Focused on readability metrics rather than broader editing tools
  • 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

Check Readability is a free web-based checker for content creators, copywriters, SEO specialists, educators, legal professionals, editors, and researchers. Users can type or paste text into its web editor and receive results from nine…

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. Check ReadabilityReadability Checkers 9.0Free plan
  2. Slick WriteReadability Checkers 8.2Free plan

Strengths and trade-offs

  • Check Readability — where it wins

    • Nine readability formulas plus a consensus grade level
    • Actionable guidance on sentence length, complexity, and word choice
    • Chrome extension analyzes selected text and full webpages

    Where it doesn't

    • English-language analysis only
    • Chrome extension is specific to the Chrome browser
    • Focused on readability metrics rather than broader editing tools

  • 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
  • Check Readability9.0/10 · Free plan

    A free browser checker combining nine formulas with practical clarity guidance.

    Visit siteFull verdict →
  • Slick Write8.2/10 · Free plan

    A free browser checker that combines grammar review with detailed style and readability analysis.

    Visit Slick WriteFull verdict →

More comparisons

All readability checkers comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update