Campaign utility

Character Calculator for email and SMS copy

Check text length before launch. Count characters, words, mobile email preview limits, and SMS segments with Unicode and emoji-aware calculation.

Open Character CalculatorBack to CheckInbox

Email preview

Preview how subject lines and preheaders may appear on mobile before they get truncated in the inbox.

SMS segments

Calculate GSM-7 and Unicode SMS segments. Cyrillic, emoji, and non-GSM characters automatically switch SMS limits to Unicode.

Part of CheckInbox

Use it alongside inbox monitoring, Scan, DNS Checker, Word Scanner, UTM Builder, and Emoji tools.