Email Readability Checker
How to use this tool
Paste your email body
Copy the body text of your draft email and paste it into the box below. Plain text works best; HTML tags are automatically stripped.
Read the scores
You will see word count, estimated reading time, a Flesch readability score, average sentence length, and a breakdown of long sentences to consider shortening.
Check spam words
The tool also scans for common spam trigger words that may cause your email to land in the junk folder. Highlighted words can be swapped for neutral alternatives.
What this tool does
It measures how easy your email is to read and flags potential deliverability risks. A Flesch score above 60 means most adults can read it comfortably. Short sentences and plain language help with both engagement and inbox placement.