Email subject line counter
Type your subject line and see the character and word count, plus exactly where Gmail, Outlook and the iPhone Mail app cut it off — with a safe-length meter and a live preview. Nothing is uploaded.
Your subject line
0Characters
0Words
Safe length
Front-load the important words — most phones only show the first 40 or so.
How it looks in each inbox
Type a subject line above to see the preview.
Gmail
Desktop webmail shows roughly the first 70 characters before it trims the line.
Outlook
Outlook for Windows shows roughly the first 60 characters in the message list.
iPhone Mail
The iPhone Mail list is the tightest — only about the first 40 characters show.
Everything runs in your browser. No upload, no sign-up.
How it works
STEP 1
Type your subject
Paste or write your email subject line. The character and word count update as you type.
STEP 2
Check the cut-offs
See where Gmail (~70), Outlook (~60) and the iPhone Mail app (~40) trim it, with a live preview of each.
STEP 3
Keep it safe
Aim for about 40 characters so it fits everywhere. Copy the subject or download a quick report — nothing is uploaded.