What you see is exactly what they get.
Preview your email exactly as it renders in Gmail desktop, Gmail mobile, and Outlook — including dark mode. Catch broken layouts, clipped subject lines, and invisible text before you send to thousands.
Four rendering environments, one click
Together these four cover over 90% of your subscribers' inboxes.
Gmail Desktop
The full web client rendering — including how your preheader and subject display in the thread list.
Gmail Mobile
Android and iOS Gmail app rendering. Mobile clips subject lines at ~35 chars — we show you exactly what gets cut.
Outlook Desktop
Outlook's Word-based rendering engine handles CSS differently. Tables, padding, and web fonts all behave differently here.
Dark mode
Across all three clients. Dark mode is now enabled on 82% of mobile devices — seeing how your email inverts is no longer optional.
Dark mode isn't optional anymore.
82% of mobile users have dark mode enabled. Emails designed only for light mode can have white text on white backgrounds, logos that disappear, and CTAs that become invisible.
MoreMail's dark mode preview renders the exact inversion logic Gmail and Outlook apply — so you can catch these issues while there's still time to fix them.
What you'll catch before they do
The most common rendering issues found in pre-send previews.
The subject line preview that saves campaigns
Gmail mobile truncates subject lines at ~35 characters in portrait mode. Most marketers write for desktop (50+ chars) and never see what mobile subscribers see. MoreMail's inbox preview shows both side by side — with a visual indicator of exactly where the cutoff lands on each device.
Gmail Desktop
Your Q4 product update + 3 things to try this weekend
Full subject visible
Gmail Mobile
Your Q4 product update +...
Truncated after 28 chars
No more "looked fine in preview."
See exactly what your subscribers see — before you send. Free on every plan.