The best free readability checker online. Check readability of any text with real-time live scoring, 16+ metrics, keyword density, PDF export, speaking time, accessibility grade, dyslexia score, and audience reach — all free, all private, forever. Readable checker for writers, bloggers & SEO teams.
How it works: We try 3 independent CORS proxies automatically. If one fails, the next is tried silently. Works best with public blog posts, news articles, and static web pages. JavaScript-heavy SPAs (React/Vue apps) and pages behind logins cannot be fetched — paste the text manually instead.
Supported: PDF, DOCX, PPTX, TXT, RTF, HTML, Markdown, CSV, JSON, XML, SRT, VTT. PDF, DOCX, and PPTX text is extracted automatically. For scanned PDFs (image-based), please copy-paste text manually.
| Formula | Score | Grade/Level | Interpretation |
|---|
Use the highlight toggles above to colour-code your text. Toggle multiple types at once.
| Keyword | Count | Density | Bar |
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Your readability scores compared against the ideal range for each content type. Green = on target, Yellow = marginal, Red = out of range.
These scores estimate how accessible your content is for different audiences and reading contexts.
Whether you're writing a blog post, email, landing page, or essay — this free readability checker gives you real-time live scoring, 16+ metrics, keyword density analysis, and a downloadable PDF report. Everything premium tools charge for, completely free. Use our readable checker to check readability of any content in seconds.
Your Flesch score, grade level, and all metrics update instantly as you type — no button needed. Premium tools charge for this. Ours is free.
Word count, sentence count, paragraphs, average sentence length, syllables/word, complex word count & %, reading time, speaking time, unique words and more.
See exactly which words appear most in your content and at what density — helping you balance readability with SEO keyword targeting in one tool.
Copy your full analysis to clipboard, download as .txt, or export a PDF report. Grammarly, Hemingway and most tools lock export behind a paywall. We don't.
See your score benchmarked against ideal ranges for blog posts, landing pages, emails, ads, and academic writing — all in one view.
Accessibility grade level, dyslexia readability score, and plain language score — measuring how readable your content is for all audiences.
Your text never leaves your browser. No server storage, no data collection, no accounts. All analysis is done entirely client-side in JavaScript.
Paste text directly, enter any URL to fetch and analyze a webpage, or upload a .txt file. All three methods feed the same comprehensive analysis engine.
A readability checker is a tool that analyzes written text and measures how easy it is for a typical reader to understand. It evaluates sentence length, word complexity, syllable count, paragraph structure, and passive voice usage to calculate a readability score — a number indicating the approximate education level needed to understand your content on first reading.
Unlike basic tools that return a single score, this free online readability checker gives you a complete picture: five readability formula scores, 16+ text metrics, keyword density analysis, accessibility grades, and a full PDF-exportable report — all from a single analysis.
Most readability tools require you to paste text and click Analyze. Our real-time readability checker updates your Flesch score and grade level as you type — word by word. This lets you write and improve simultaneously, without breaking your creative flow. It's the same feature Hemingway Editor charges for. Here it's free.
Research consistently shows that most online readers read at a 7th to 9th grade level — regardless of their actual education. When content is written above that level, readers leave. When it's at or below it, readers stay, engage, and convert. A text readability checker makes it easy to verify you're writing at the right level for your specific audience.
Using a free SEO readability score checker before publishing is no longer optional for competitive content. Google measures every behavioral signal that readability affects: bounce rate, time-on-page, scroll depth, and backlink acquisition. All of these are direct readability outcomes.
The best content balances readability with keyword optimization. Too many keywords makes text feel unnatural and raises reading difficulty. This tool's keyword density checker shows you your top keywords alongside your readability score — so you can optimize both simultaneously without sacrificing either.
Different content types have different optimal readability targets. Blog posts should target Flesch 65–75 (Grade 7–8). Landing pages convert best at Flesch 70–80 (Grade 6–7) — shorter sentences persuade faster. Ad copy should aim for Flesch 80+ (Grade 5–6) — maximum clarity in minimum words. Email copy performs best at Flesch 60–75 on mobile. Our SEO readability checker shows your score against all these targets in the SEO Targets tab.
The readability score for a blog post differs from what's optimal for a landing page or ad. Blogs need authority and depth — Grade 7–8 balances accessibility with credibility. Landing pages need to convert immediately — Grade 6–7 forces the simplicity that drives action. Ads need instant comprehension — Grade 5–6 ensures your message lands in one second. This free readability checker scores your content against all three in the SEO Targets tab.
This free readability checker is built for speed. Use it to check readability of any text — blog posts, emails, landing pages, or academic writing. Here's how to get the most from every feature.
Paste text directly, enter a URL to fetch and analyze any webpage, or upload a .txt file. All three methods run the same complete analysis. The live score bar activates as soon as you start typing in Paste mode.
Click your content type — Blog Post, Landing Page, Email, Ad Copy, or Academic. This sets the target benchmark for your SEO Targets tab and tailors suggestions to your specific writing context.
As you type, your Flesch score and grade level update in real time in the live score bar. No button needed. This is the real-time readability editing feature — write and optimize simultaneously.
Click "Analyze Now" (or Ctrl+Enter) to run the complete analysis: 5 formula scores, 16 metrics, audience reach percentage, keyword density, SEO targets, accessibility scores, and content-type suggestions.
Enable sentence highlights to see hard and passive-voice sentences in color. Open the Suggestions tab for specific, actionable recommendations tailored to your content type. Edit, re-analyze, and track improvement.
Copy your full report to clipboard, download as .txt, or export a formatted PDF. Share it with clients, add it to your content brief, or archive it for quality documentation. All three export formats are free.
This readability checker free tool runs five validated algorithms simultaneously — giving you a more complete picture than any single score. Use it as your go-to readable checker to check readability with academic precision. Each formula is used by governments, publishers, and healthcare systems worldwide.
Scores 0–100. Higher = easier. Developed by Rudolf Flesch in 1948. Used by the U.S. DoD and insurance industry. The core of every Flesch readability checker.
Converts Flesch to a U.S. school grade. Used by Microsoft Word's readability checker and Yoast SEO. Grade 8 = readable by an average 8th grader.
Years of education needed to read on first pass. Developed 1952. Magazines target Fog 7–8. News aims for 6–8. Heavily penalizes long sentences and complex words.
Used by CDC and NHS for patient communications. High accuracy. Counts 3+ syllable words to predict grade needed for full comprehension.
Uses characters per word rather than syllables — more consistent across dialects. Widely used in automated document analysis and text processing systems.
Use this reference to check readability scores and understand what they mean. This free readability checker uses these ranges to benchmark your content — know exactly which score to target for every content type.
Flesch Reading Ease — Score Guide
Ideal Score by Content Type
| Content | Flesch | Grade |
|---|---|---|
| Blog Posts | 65–75 | 7–8 |
| Landing Pages | 70–80 | 6–7 |
| Email Copy | 60–75 | 7–8 |
| Ad Copy | 80–90 | 5–6 |
| Social Media | 80–90 | 5–6 |
| Technical Docs | 40–60 | 10–12 |
| Academic | 30–50 | College |
These are the highest-impact changes you can make after using this free readability checker. Check readability before and after each edit — the readable checker updates in real time so you can track improvement instantly.
Target 15–20 words average. Every sentence you split directly improves your Flesch score, Gunning Fog, and SMOG. Use the "Very hard" highlight to find your longest sentences first.
"Use" instead of "utilize." "Show" instead of "demonstrate." "Help" instead of "facilitate." Complex word % is one of the biggest drivers of Fog and SMOG scores.
"The team wrote the report" vs "The report was written." Active voice is shorter, clearer, and more direct. Aim for under 10% passive voice. Use the highlight to find them.
Keep paragraphs to 2–3 sentences on web pages. Dense text blocks trigger abandonment — especially on mobile. Your paragraph count metric tracks this directly.
H2/H3 headings and bullet lists reduce per-sentence word load and give readers visual navigation. Both improve perceived and actual readability without changing your core message.
Type directly in the tool and watch your live score change as you write. This real-time readability editing workflow lets you reach your target score during drafting, not after.
From solo creators to enterprise content teams — anyone writing for an audience benefits from using a free readability checker. Check readability before publishing to reach more readers, rank higher, and reduce bounce rates.
A blog readability checker ensures posts are accessible to your full audience. Blogs scoring Flesch 65–75 earn more shares, lower bounce rates, and longer read times.
Use the SEO readability checker + keyword density tab together to optimize content for both Google and human readers. No WordPress plugin required.
An email readability checker and ad copy analyzer ensures every message is understood instantly. Shorter sentences and Grade 6–7 copy lift click rates and conversions.
An essay readability checker helps calibrate writing for different audiences. Strong academic writing is precise and clear — not just complex.
This document readability checker helps teams write clearer proposals, reports, and client communications. Export the PDF report to document content quality standards.
The accessibility grade, dyslexia readability score, and plain language score help writers ensure content is inclusive for all readers, including those with reading differences.
A grammar and readability checker performs two fundamentally different jobs. Grammar checkers (like Grammarly) identify correctness: misspellings, wrong punctuation, incorrect verb tenses. A piece of text can be grammatically perfect and still be nearly impossible to read.
A readability and grammar checker workflow uses both tools together: fix errors with a grammar tool first, then check readability to improve clarity and comprehension. Together they cover the two pillars of effective writing — correctness and clarity.
Unlike the Grammarly readability checker (paid tier) or Hemingway Editor (paid desktop app), this free readability checker online provides comprehensive analysis with real-time scoring, keyword density, accessibility scores, and PDF export — all at no cost, forever.
We analyzed every major readable checker and readability checker free tool — then built this one to beat them on every feature that matters. Here's how it stacks up.
| Feature | This Tool | WebFX | Hemingway | Grammarly | Yoast | PrePostSEO |
|---|---|---|---|---|---|---|
| Real-Time Live Score | ✓ Free | ✗ | ✓ Paid | ✗ | ✗ | ✗ |
| 5 Readability Formulas | ✓ | ✓ | ✗ | ✗ | ✗ | ✓ |
| Keyword Density | ✓ Free | ✗ | ✗ | ✗ | Paid | ✓ |
| PDF / Export Report | ✓ Free | ✗ | ✗ | Paid | ✗ | ✗ |
| Speaking Time | ✓ | ✗ | ✗ | ✗ | ✗ | ✗ |
| Audience Reach % | ✓ | ✗ | ✗ | ✗ | ✗ | ✗ |
| Dyslexia Score | ✓ | ✗ | ✗ | ✗ | ✗ | ✗ |
| Plain Language Score | ✓ | ✗ | ✗ | ✗ | ✗ | ✗ |
| SEO Targets by Content Type | ✓ | ✗ | ✗ | ✗ | Partial | ✗ |
| Content-Type Suggestions | ✓ Blog/Email/Ad/Landing | ✗ | ✗ | Paid | Partial | ✗ |
| Text Not Stored | ✓ Always | Unknown | ✓ | Server processed | Server processed | Unknown |
| 100% Free, No Account | ✓ | ✓ | ✗ Paid | ✗ Paid | ✗ Plugin | ✓ |
The most complete free readability checker online. Real-time live scoring, keyword density, PDF export, accessibility grades, and 16+ metrics — no account, forever free.
Check Your Text Now — It's Free