subject line character counter

about this tool

email subject lines are all about first impressions, and most email clients display somewhere between 40 and 60 characters before cutting off. write a subject line that’s too long, and the best part of your message might get clipped — especially on mobile, where the preview window is even shorter. write one that’s too short and you might be leaving engagement on the table.

this free subject line character counter shows you exactly how many characters your subject line contains as you type, with a clear visual indicator of where you stand relative to common display limits. it’s a simple, distraction-free tool that helps you write subject lines that land well across devices.

it’s the kind of micro-tool email marketers use every day without even thinking about it. if you’re a/b testing subject lines, refining copy for different audience segments, or just trying to keep your emails performing well, having a quick character count at your fingertips is genuinely useful. no fuss, just a fast check before you schedule your next send.