Readability Analyzer
Get exact reading-ease scores (Flesch, grade level and more) and see hard sentences, passive voice and adverbs highlighted live as you edit.
Live readability scores
Paste an email, essay or article. You'll get exact Flesch, Fog, SMOG, Coleman–Liau & ARI scores plus colour-coded highlighting — instantly, privately, in your browser.
Showing highlights for the first part of your text; the scores above are computed on the full text.
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🔒 100% private — your text is analysed entirely in your browser and never uploaded. Scores use standard published readability formulas, so they're exact and repeatable every time — not a vague one-off opinion.
Why you’ll love Readability Analyzer
Instant & free
No signup, no paywall, no limits — Readability Analyzer works the moment the page loads.
Completely private
Everything runs in your browser. Nothing you enter is ever uploaded or stored on a server.
Works on any device
Fully responsive and touch-friendly — use it on your phone, tablet or desktop.
Made for makers
Fast, keyboard-friendly and precise — handy for writers and developers alike.
How to use it
Open it
No download and no login — the tool is ready right at the top of this page.
Use it
Enter your details or start interacting. Everything updates live as you go.
Get your result
Copy, download or share your result in a single tap. That’s it.
Frequently asked questions
Readability Analyzer is 100% free — no signup, no watermarks and no usage limits. It’s one of 200+ free tools we build and give away.
No practical limit — it all runs in your browser, so paste as much as you need.
Completely. Readability Analyzer runs entirely in your browser (client-side). Nothing you type, upload or generate is sent to our servers, so your data never leaves your device.
No. It works instantly in any modern web browser — Chrome, Safari, Edge or Firefox — on desktop and mobile.
Yes. The tool is fully responsive and touch-friendly, so it works great on phones and tablets as well as computers.
Global Maple System — a software & AI studio. We built Readability Analyzer (and 200+ other free tools) to show what we can do. Need something custom built? We’d love to help.
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