Data·yze Readability Analyzer

Web

Freedom report

One barScore 5.1

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely1 of 6 device platforms
DocumentedThinly documented

Data·yze Readability Analyzer is ranked #16 of 25 in readability checkers on Freedom251. It runs on Web. There is a free plan.

Data·yze Readability Analyzer plans and pricing

All plans

Readability Analyzer Free Free ad-supported web app; no usage limit stated on the Readability Analyzer page datayze.com · 5 Oct 2026

Compared on readability checkers

Free plan: Yes
Sentence analysis: Yes
Clarity recommendations: Yes

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The record

Purpose: Estimates how readable a passage of text is for a given audience.
Readability metrics: It reports estimates using Flesch-Kincaid Reading Ease, Gunning Fog Index, Kincaid Grade Level, SMOG, Dale–Chall, and Fry Reading Graph metrics.
Paragraph analysis: A paragraph-level view provides readability statistics and shows how readability changes across a document.
Text input: Users can enter text or upload a file, and can save or download their inputted text.
Related writing tools: The page links to a Difficult and Extraneous Word Finder, Passive Voice Detector, and Spell Checker.
Website analysis: The Website Readability Analyzer estimates the readability of an individual webpage and average readability across a site.
Crawler limit: The website analyzer’s crawler is limited to 1,000 pages per user per day, and pausing and resuming it on another day can work around the cap.
Privacy: Data·yze says passages analyzed by its writing assistance apps are not collected or stored, though passage length is stored for performance analysis.
Uploaded files: The privacy policy says writing-tool uploads are cached to improve processing time and automatically expunged within seven days, possibly sooner.
Ads and analytics: Data·yze says it uses third-party advertising and analytics services, including Google AdSense, Google Analytics, and Amazon Affiliates, which may use tracking cookies.
Limitations: The maker says readability metrics are heuristic estimates, are not a measure of writing quality, and the analyzer works best with plain text.
Support: The contact page accepts bug reports and feature requests, and says typical email response time is a couple of weeks.
Maker history: Data·yze says Dr. Sarah Tyler began experimenting with web apps in the late 1990s, including an early version of the Readability Analyzer.
Business model: Data·yze says its existing catalog of free web apps will remain available in free, ad-supported versions.
Price from: Free

Where it ranks on Freedom251

Best Readability Checkers in 2026#16 of 25

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Sources

datayze.com/readability-analyzer· checked 5 Oct 2026
datayze.com/website-readability-analyzer· checked 5 Oct 2026
datayze.com/privacy· checked 5 Oct 2026
datayze.com/contact· checked 5 Oct 2026
datayze.com/about· checked 5 Oct 2026