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Data·yze Readability Analyzer

datayze.com

Free plan Web
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Spec score 7.7 #15 of 25 in Readability Checkers

What it is

Data·yze Readability Analyzer is a free, ad-supported web app that estimates how readable text may be for a chosen audience. It reports Flesch-Kincaid Reading Ease, Gunning Fog Index, Kincaid Grade Level, SMOG, Dale–Chall, and Fry Reading Graph metrics. Sentence analysis and clarity recommendations are available, while a paragraph view shows statistics and changes in readability through a document. You can enter text or upload a file, then save or download the input. A separate Website Readability Analyzer evaluates an individual webpage and average readability across a site. Its crawler is limited to 1,000 pages per user per day; pausing and resuming on another day can work around that cap. Data·yze says analyzed passages are not collected or stored, although passage length is retained for performance analysis. Uploaded files may be cached and automatically removed within seven days, possibly sooner. The maker cautions that scores are heuristic estimates, not writing-quality measures, and work best with plain text.

Spec sheet

Purpose
Estimates how readable a passage of text is for a given audience.Read 5 Oct 2026 · datayze.com
Privacy
Data·yze says passages analyzed by its writing assistance apps are not collected or stored, though passage length is stored for performance analysis.Read 5 Oct 2026 · datayze.com
Support
The contact page accepts bug reports and feature requests, and says typical email response time is a couple of weeks.Read 5 Oct 2026 · datayze.com
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.Read 5 Oct 2026 · datayze.com
Business model
Data·yze says its existing catalog of free web apps will remain available in free, ad-supported versions.Read 5 Oct 2026 · datayze.com
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.Read 5 Oct 2026 · datayze.com
Limitations
The maker says readability metrics are heuristic estimates, are not a measure of writing quality, and the analyzer works best with plain text.Read 5 Oct 2026 · datayze.com
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.Read 5 Oct 2026 · datayze.com
Paragraph analysis
A paragraph-level view provides readability statistics and shows how readability changes across a document.Read 5 Oct 2026 · datayze.com
Readability metrics
It reports estimates using Flesch-Kincaid Reading Ease, Gunning Fog Index, Kincaid Grade Level, SMOG, Dale–Chall, and Fry Reading Graph metrics.Read 5 Oct 2026 · datayze.com
Related writing tools
The page links to a Difficult and Extraneous Word Finder, Passive Voice Detector, and Spell Checker.Read 5 Oct 2026 · datayze.com
Text input
Users can enter text or upload a file, and can save or download their inputted text.Read 5 Oct 2026 · datayze.com
Uploaded files
The privacy policy says writing-tool uploads are cached to improve processing time and automatically expunged within seven days, possibly sooner.Read 5 Oct 2026 · datayze.com
Website analysis
The Website Readability Analyzer estimates the readability of an individual webpage and average readability across a site.Read 5 Oct 2026 · datayze.com

Plans and prices

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

Every Data·yze Readability Analyzer plan and price →

Strong points and limits

Strong points

  • Free ad-supported web app
  • Six named readability metrics
  • Paragraph and sentence analysis
  • Website crawler handles 1,000 pages daily
  • Text upload, saving, and download

Limits

  • Crawler capped at 1,000 pages daily
  • Scores are heuristic estimates
  • Uploaded files may be cached seven days
  • Third-party tracking cookies may be used

Who it suits

It suits writers, editors, and site owners who want readability estimates and paragraph or sentence-level guidance in a browser. It also suits users checking webpage or whole-site readability.

Verdict

Data·yze Readability Analyzer provides broad readability scoring with document, sentence, and website views at no listed price. Its estimates and stated data-handling limits should be considered when interpreting results or uploading files.

Where Specifiction places it

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