SMS Message Tester - check message length, the number of characters your message will take up, and check for unicode characters.

Use our free unicode character detector to check GSM or unicode symbols in your text messages and remove them from your next SMS.

May 14, 2026 - Unicode character detector is a free tool to detect any unintended Unicode character in the SMS message content.

Textr – Free Unicode Checker Tool. Quickly identify Unicode characters in your text messages, avoid segmentation and save sending costs.

Please note even if a message contains only one Unicode character, all parts are broken up into 67 characters even if one of those parts doesn't contain any Unicode characters. An SMS counter like ours will tell you exactly how many characters are allowed in your text message.

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Our character counter allows you to check the length of your SMS, to understand the characters supported by different encodings (GSM or Unicode) and thus to send powerful messages while optimising your costs.

December 19, 2023 - Send text messages worldwide via API or web platform · Deliver rich, branded messages with media through API or intuitive web tools, with failover support

SMS.to's free online tool for checking Unicode characters and calculating length helps you know if the message will fit the character limit. Type in your content and get detailed results instantly!

June 26, 2025 - The unicode standard: multilingual management of SMS (Cyrillic, Greek, Arabic, Hebrew, Chinese...) & special characters (symbols, emojis)

May 11, 2026 - Instantly see the character count as you type, including letters, spaces, special characters and Unicode symbols. The tool automatically calculates the length of your message in SMS segments, helping you avoid unexpected splits that could increase costs.

Use the calculator below to check whether your SMS message contains only ASCII characters (GSM7 encoding) or any special characters (UCS-2 encoding) and how many segments will be required to send. Please refer to the user guide for further definitions of how SMS encoding and segments operate. ... UCS-2 Encoding Required Number of segments Number of characters Number of Unicode scalars Message size Total size sent

December 5, 2023 - It’s a US based, not-for-profit ... systems, search engines, applications, and the World Wide Web. Using the sms api from The SMS Works, you don’t need to take any additional steps to identify non standard characters that ...

May 28, 2025 - Here's how it helps: Accurately determine your message's character count in real-time, preventing unexpected length issues and costs. Automatically identify whether your message uses GSM-7 or Unicode, affecting the per-message character limit.

A free online tool to calculate the character length of your SMS messages determine encoding types and estimate the number of message parts.

May 14, 2026 - SMS message character counter is a free online calculator that displays how many message character is in your message content. It also identifies the unicode character in your SMS content, so it will help you to avoid special characters in your marketing campaign.

4 Checking if SMS message is in standard GSM alphabet · 0 Detect characters that will require unicode converstion for SMS messages

Use SMS to send texts, notifications, campaign messages or verify security codes (MFA/OTP), by using our Messaging API products.

From Unicode to GSM 7-bit encoding – count the characters of your SMS text with our SMS length calculator.

February 18, 2022 - Checks text for Unicode characters outside the GSM alphabet and replace them with corresponding GSM character. Helps to save SMS parts and costs for sending SMS