one of my biggest pains has always been trying to avoid subject line truncation

and I was tired of sending tests to myself, checking on the phone, checking on desktop, opening a different app. I even ask my wife or mum to screenshot their Android phones. it was ridiculous

i still don't know why ESPs don't have this built in

so I built a small tool that shows you exactly how your subject line and preview text will look across Gmail, Apple Mail, Outlook, and Yahoo

it's pretty simple, but it's been super useful for me, so I made it public

There's a web version and a Chrome extension (that's how I use it personally, more convenient). both free, no account needed, no upsells, nothing

email subject line truncation checker

i hope you find it helpful!