ProWritingAid is a grammar checker, style editor, and writing mentor in one package.
Starting from $70 per year
Best WebFX Readability Test Alternatives ranked by AI · updated Aug 2026
WebFX Readability Test is a free browser tool that evaluates pasted text using common readability formulas. It is aimed at writers, educators, marketers, and SEO practitioners who need a quick score comparison without creating an account.
Top 6 WebFX Readability Test alternatives
Grammarly is a digital writing assistant that helps users improve their writing by offering suggestions for grammar, punctuation, style, and tone.
Free basic version, Premium starts at $11.66/month
3
Online Utility Readability Calculator
Online-Utility.org
Online Utility Readability Calculator is a browser-based tool for estimating the reading difficulty of text with established readability formulas. It is suited...
Pros
- Free without requiring an account
- Runs directly in a browser with minimal setup
- Provides formula-based readability estimates for pasted text
Cons
- Less comprehensive writing feedback than Readable or ProWritingAid
- Limited collaboration and document-management features
- Older utility-style interface compared with newer web editors
Readable is a readability and content-quality platform for writers, editors, marketers, and organizations. It analyzes reading age, readability formulas, sentiment, tone, and...
Pros
- More focused on readability scoring and content quality than Grammarly
- Includes multiple readability formulas and audience-oriented metrics
- Adds tone, sentiment, and keyword-density analysis
Cons
- Not as useful for detailed grammar correction as LanguageTool
- Paid access is required for its main professional workflow
- Less convenient for a one-off free text check
From $4/mo
Hemingway Editor helps you write in a clear and concise manner by highlighting complex sentences and common errors.
Free basic version, $19.99 for desktop app
6
Readability Formulas
ReadabilityFormulas.com
Readability Formulas is an online resource and calculator for measuring text with established readability tests. It is intended for educators, researchers, editors,...
Pros
- Explains the formulas more extensively than a minimal calculator
- Covers a broad range of readability metrics
- Useful for educational and research-oriented comparisons
Cons
- Interface is less streamlined than Hemingway Editor
- Limited grammar and rewriting assistance
- Some advanced resources and tools are separated from the free calculator
Free; paid tools available
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