Best Readability Checkers in 2026
Updated
In short: Text Inspector is ranked #1 of 25 as of 4 October 2026, ahead of Hemingway Editor and ProWritingAid. The best-ranked option with a free plan is ProWritingAid. The lowest first paid tier on this page is Hemingway Editor at $0.69/mo.
When you want to assess how easy a text is to follow, readability checkers offer measures and feedback to consider during revision. The ranking begins with Hemingway Editor, Text Inspector, and Check Readability; ProWritingAid and Readability Formulas also appear near the top. Compare readability formulas and sentence analysis with clarity recommendations to understand the kinds of review each entry lists. Language support and browser extensions may matter to your writing workflow, while API access is relevant if you need a programmatic connection. Check free-plan availability and paid-from pricing alongside the features you need.
25 readability checkers ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
Readability Checkers, ranked on how quickly a newcomer can get going. 10 of the 25 on this page can be tried for free.
- 1 Text InspectorFree plan
- Free to practise on: yes
- Free trial: yes
- Well documented: yes
- Runs where you work: not on record
- 2 Hemingway EditorPaid from $0.69/mo
- Free to practise on: not on record
- Free trial: yes
- Well documented: yes
- Runs where you work: yes
- 3 ProWritingAidPaid from $10/mo
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 4 Readability FormulasFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 5 TextGearsPaid from $2.48/mo
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 6 Check ReadabilityFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 7 AnchorKite Readability CheckerFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 8 Delimiter Readability CheckerFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 9 ReadablePaid from $12/mo
- Free to practise on: not on record
- Free trial: yes
- Well documented: yes
- Runs where you work: not on record
- 10 Slick WriteFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 11 Readability Analysis Tool (RAT)
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 12 ApyHub Readability Scores Documents API
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 13 Eclipse Readability Studio
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: yes
- 14 ATOS Analyzer
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 15 Botoi Readability API
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 16 DO101 Readability Checker
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 17 Flesch-Kincaid Readability & Grade Level Analyzer
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 18 Readability.ch
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 19 ReadabilityTool
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 20 StyleWriterPaid from $90/mo
- Free to practise on: not on record
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 21 Analyze My Writing
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 22 Data·yze Readability Analyzer
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 23 Flesch-Kincaid Calculator
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 24 UsingEnglish Text Analyser
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 25 Orwellix
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
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 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 ProWritingAid 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.