Byte Counter
Count the number of bytes in your input text.
About This Tool
This byte counter tool helps you measure the size of your text in bytes, which is crucial for systems that enforce byte limits rather than character limits. It supports UTF-8 encoding and reflects how many bytes your input will consume, which is especially useful for developers, database designers, and SMS message planning. All processing is done locally in your browser for maximum privacy.
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Frequently Asked Questions
What is a byte in text?
A byte represents a unit of digital information. In text, one ASCII character typically equals one byte, while Unicode characters like emojis or non-Latin scripts may use multiple bytes.
Why does byte count matter?
Byte size is important in contexts like SMS messaging, API payloads, databases, or embedded systems that enforce strict byte-based limits.
Is my text stored or sent anywhere?
No. This tool runs entirely in your browser and does not store or transmit your input.