Best AI Readability Checkers in 2026
Updated
In short: Text Inspector is ranked #1 of 25 as of 4 October 2026, ahead of Hemingway Editor and ToolsVale Readability Checker. The best-ranked option with a free plan is ToolsVale Readability Checker. The lowest first paid tier on this page is Hemingway Editor at $0.69/mo.
Clear writing can be easier to assess when you can see readability scores, grade-level analysis, and sentence complexity together. Compare those measures with plain-language rewrites and accessibility guidance to find feedback suited to your material and readers. Input formats indicate what content you can check; free-plan availability and paid-from pricing add cost context. Hemingway Editor leads the displayed entries, followed by ToolsVale Readability Checker, eReadable, and Readability Formulas. Use the ranking as an order for review, and focus on the measures and guidance most relevant to the text you need to assess.
25 AI readability checkers ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
#1 Text Inspector Top pick · 7.5 Free plan · Free
#2 Hemingway Editor Runner-up · 7.3 $0.69/mo
#3 ToolsVale Readability Checker Also great · 7.2 Free plan · Free
- Free planFree trial apiWeb
- Free plan
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free trial macOSWebWindows
- Free plan
- Yes
RecognisedDocumentedFree planFree trialPlatforms$0.69/mofirst paid tier About Hemingway EditorVisit site - Free plan AndroidiOSLinuxmacOSWebWindows
- Free plan
- Yes
- Readability scores
- 7 scores
- Grade-level analysis
- Yes
- Sentence complexity
- Yes
- Plain-language rewrites
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free trial AndroidiOSmacOSWebWindows
- Free plan
- No
- Readability scores
- 9 scores
- Grade-level analysis
- Yes
- Sentence complexity
- Yes
- Plain-language rewrites
- Yes
RecognisedDocumentedFree planFree trialPlatforms$41.58/mofirst paid tier About Health Literacy AdvisorVisit site - Free plan extensionmacOSWebWindows
- Free plan
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free plan Web
- Free plan
- Yes
- Sentence complexity
- Yes
- Plain-language rewrites
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free plan Web
- Free plan
- Yes
- Grade-level analysis
- Yes
- Sentence complexity
- Yes
- Plain-language rewrites
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free plan Web
- Free plan
- Yes
- Grade-level analysis
- Yes
- Sentence complexity
- Yes
- Plain-language rewrites
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free trial Linuxself-hostedWebWindows
- Free plan
- No
- Grade-level analysis
- Yes
- Sentence complexity
- Yes
- Plain-language rewrites
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free plan Web
- Free plan
- Yes
- Grade-level analysis
- Yes
- Sentence complexity
- Yes
- Plain-language rewrites
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free plan Web
- Free plan
- Yes
- Readability scores
- 6 scores
- Grade-level analysis
- Yes
- Sentence complexity
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free trial apiWeb
- Free plan
- No
- Paid from
- 12 /mo
RecognisedDocumentedFree planFree trialPlatforms$12/mofirst paid tier About ReadableVisit site - WindowsmacOSLinux
- Grade-level analysis
- Yes
- Sentence complexity
- Yes
- Plain-language rewrites
- No
RecognisedDocumentedFree planFree trialPlatforms - Web
- Free plan
- Yes
- Paid from
- 29.99 /mo
- Readability scores
- 8 scores
- Grade-level analysis
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Web
- Free plan
- Yes
- Readability scores
- 0 scores
- Grade-level analysis
- No
- Sentence complexity
- Yes
- Plain-language rewrites
- No
RecognisedDocumentedFree planFree trialPlatforms - Web
- Free plan
- Yes
- Sentence complexity
- Yes
- Plain-language rewrites
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Web
- Free plan
- Yes
- Sentence complexity
- Yes
- Plain-language rewrites
- Yes
RecognisedDocumentedFree planFree trialPlatforms - WindowsLinux
- Free plan
- Yes
RecognisedDocumentedFree planFree trialPlatforms -
- Free plan
- Yes
- Readability scores
- 6 scores
- Grade-level analysis
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Web
- Free plan
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Windows
- Free plan
- No
- Readability scores
- 9 scores
- Grade-level analysis
- Yes
- Sentence complexity
- Yes
- Plain-language rewrites
- No
RecognisedDocumentedFree planFree trialPlatforms -
- Grade-level analysis
- Yes
- Plain-language rewrites
- No
RecognisedDocumentedFree planFree trialPlatforms -
- Free plan
- Yes
- Paid from
- 16 /mo
RecognisedDocumentedFree planFree trialPlatforms - WindowsmacOSLinux
- Free plan
- Yes
RecognisedDocumentedFree planFree trialPlatforms -
- Free plan
- Yes
- Paid from
- 9 /mo
RecognisedDocumentedFree planFree trialPlatforms
Is your platform on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which AI readability checker is ranked first on The Geeks Club?
Text Inspector is ranked #1 of 25 with a score of 7.5. Hemingway Editor is second and ToolsVale Readability Checker third.
How many of these have a free plan?
8 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Hemingway Editor has the lowest first paid tier we found: $0.69/mo.
How is this list ranked?
Ranked on how quickly a newcomer can get going: documentation depth, a free tier or trial, and the platforms it runs on. Paid placements never change a rank.