Paste any text and get a Flesh Score — a human writing score based on human markers in text, voice, tone, language, and other signals of authentic human expression.
No rewriting. No grammar correction. Just diagnosis.
Paste your text into Flesh Index and see what your language reveals. Whether you're checking an essay, article, email, story, post, or AI-assisted draft, Flesh Index helps you understand the human voice in your text.
Flesh Index is a textual humanity meter and writing authenticity tool that analyzes human presence in text.
A Flesh Score is the human writing score generated by Flesh Index.
No. AI detectors look for machine patterns. Flesh Index looks for human markers in text.
Yes. You can analyze any text. Flesh Index will show you the human signals present.
No. It reads and scores your writing. Your words stay yours.
Surprise! We don't have a wall of text here.
We don't track anyone or collect information, just like it should be.
But a word of warning: know that all text you paste into online checkers is never guaranteed not to spread. That is the magic and the downside of the internet.
If your information is stolen, it's likely because you used a plugin or service elsewhere. Or someone could be looking over your shoulder.
Good luck and stay safe.
— Copygut