See how your sender name, subject line and preview text look in Gmail, iPhone Mail and Outlook before you hit send. Compare up to four subject lines and catch what gets cut off.
Characters of each subject line that show before it's cut off. Widths are based on common screen sizes, so treat them as a guide.
| Variant | Length | Gmail · phone | iPhone Mail | Outlook · desktop | Gmail · desktop |
|---|
Most opens happen on phones, where roughly the first 30 to 40 characters show. Put the words that matter most at the start and let the rest be a bonus.
The inbox shows the first text it finds in your email instead, which is often "View in browser" or alt text from your logo.
If your preview text is short, inboxes fill the rest of the line with the start of your email. Invisible spacer characters after the preview text stop that from happening.
Subscribers without a first name on file see whatever your fallback is. Without one they get subject lines like ", your list is ready".
No. Where text is cut depends on the device, font, zoom and inbox settings. The previews use typical widths so you can compare lines and spot problems.