Byte Counter (UTF-8 & UTF-16)

Measure exact byte length of text across UTF-8 and UTF-16 encodings alongside total characters.

How It Works & Processing Standards

Measure exact byte length of text across UTF-8 and UTF-16 encodings alongside total characters.

Your input data is never sent to any server and is securely processed on your device.

Current Limits

  • Maximum input length: 2,000,000 characters

Byte Counter (UTF-8 & UTF-16) is a 100% free, browser-based online utility. All calculations and file conversions run locally inside your browser (Local-First) without sending data to remote servers, keeping your documents and inputs strictly private.

How to Use Byte Counter (UTF-8 & UTF-16)

  1. 1
    Paste TextEnter text to calculate byte weight.
  2. 2
    View MetricsInspect UTF-8 bytes, UTF-16 bytes, and character counts.

Common Use Cases

  • Checking database VARCHAR(255) byte limits for multi-byte Unicode strings
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