Check readability in 3 simple steps
Paste your content, click Analyze readability, and review the scores and hardest sentences before you publish.
Paste directly into the box or upload a .txt file. Everything runs in your browser and is never uploaded to a server.
You can adjust words-per-minute for reading time, and choose how many of the hardest sentences to highlight.
200 wpm is typical for online reading. Increase for fast readers, decrease for dense content.
Helpful if you’re turning this into a talk, webinar, or YouTube script.
We rank sentences by length and complexity. Start with the top 3 and rewrite them.
The analysis uses Flesch Reading Ease and Flesch–Kincaid Grade Level formulas – both standard, transparent, and widely used in education and SEO tooling.
Use this section to quickly spot whether your text is too complex, how long it will take to read out loud, and which sentences to simplify first.
Hardest sentences to read
These sentences are long and dense compared to the rest of your text. Try splitting them, removing filler, or simplifying wording.
No sentences analyzed yet. After you run the readability check, the hardest sentences will appear here.