SMS character counter
Characters, segments and GSM-7 vs Unicode — and the exact characters that make a text cost more.
Open the tool →Email subject line checker
Length, spam-trigger phrases, ALL CAPS, emoji and punctuation, with a phone-inbox preview.
Open the tool →Abandoned cart calculator
Estimate the revenue cart reminders could win back from your checkouts and order value.
Open the tool →Why we built these
The same checks run inside Trisend every day: the SMS composer counts segments and credits before a text is scheduled, the email builder reviews subject lines before a campaign goes out, and abandoned cart flows report the revenue they recover. These public versions let you use the basics without installing anything.
Guides
Try Trisend on your store
Start on the Free plan — email, popups and an automation, no credit card.