PrismKitTextSMS GSM-7 CheckerSMS GSM-7 CheckerRuns in your browserLocalCopy linkMarkdownCheck whether an SMS fits GSM-7 or needs UCS-2, count its segments and replace the characters that cost extra.Confusable Characters CheckerSpot easily confused characters like 1, l and I or 0 and O in a password or code, with each character spelled out.GPT Token EstimatorEstimate GPT token counts and API cost for a piece of text.