Readability Checker
Check how easy your text is to read: Flesch Reading Ease, grade level, Gunning Fog, SMOG and more, plus long-sentence highlights. Private.
- No uploads
- No limits
- No signup
- Words
- 46
- Sentences
- 3
- Words per sentence
- 15.3
- Letters per word
- 4.7
- Long sentences
- 1
- Flesch Reading Ease
- 69.9
- Plain English
- Flesch-Kincaid grade
- 7.3
- US school grade
- Gunning Fog index
- 9.6
- US school grade
- SMOG index
- 9.7
- US school grade
- Coleman-Liau index
- 9.8
- US school grade
- Automated Readability Index
- 8.3
- US school grade
Good writing is easy to read. Short sentences help, and so do plain words. When every sentence runs on for a very long time, adds clause after clause and never gives the reader a place to stop and breathe, understanding quickly becomes difficult for almost everyone.
- Input:
- Text
- Output:
- Counts
- Runs on:
- Your device
- Size limit:
- None
- Account:
- Not needed
How to use Readability Checker
Paste your text
Paste or type the text you want to check. It is analyzed in your browser and never uploaded.
Read the scores
For English you get Flesch Reading Ease, Flesch-Kincaid, Gunning Fog, SMOG, Coleman-Liau and ARI. For any language you get sentence and word length.
Fix the long sentences
Sentences that run past 25 words are highlighted. Split them and watch the score improve.
Why Readability Checker on Toolshed
No uploads
Everything runs in this browser tab. Your files never leave your device.
No limits
No file-size caps, no daily quotas. Process as much as your device can handle.
No signup
No account, no email, no watermark.
Frequently asked questions
Which readability scores does it calculate?
Flesch Reading Ease (higher is easier), plus the grade-level scores Flesch-Kincaid, Gunning Fog, SMOG, Coleman-Liau and the Automated Readability Index. Syllables are estimated by rule, so results can differ slightly from other tools.
Does it work for Spanish, German, Hebrew or Japanese?
Partly. The grade formulas were built for English, so for other languages you get language-neutral statistics: words per sentence, word length and highlighted long sentences.
Are my files uploaded anywhere?
No. Readability Checker runs entirely in your browser. Your files are processed on your device and are never sent to a server.
Is there a file size limit?
No fixed limit. The only limit is your device's memory. Very large files work best in a desktop browser.
Is Readability Checker really free?
Yes. There's no account and no watermark. A short optional ad, or a 20-second wait, unlocks each download. That's how we keep it free.
Does it work offline?
Once the page has loaded, processing happens locally, so it keeps working even if your connection drops.