Are NanoTools completely free to use?

Yes, all basic tools on NanoTools are completely free to use with no registration required. We offer premium features for power users.

Is my data secure when using NanoTools?

Your files are processed securely and are automatically deleted after processing. We do not store your files or data on our servers.

No installation required. All tools work directly in your browser on any device - computer, tablet, or smartphone.

We support a wide range of formats including PDF, JPG, PNG, WebP, GIF, JSON, XML, CSV, and many more depending on the tool.

Calculate string length online for free. Count bytes, characters, and code points. UTF-8 support.

Input Text

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Enter text to calculate various string lengths

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Type or paste text to measure length

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Generate comprehensive length measurements

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See different length calculations and what they mean

Different encodings and counting methods produce different lengths. Unicode emoji can be 1 character, 2-4 code units, or 1 grapheme cluster.

For VARCHAR fields, use UTF-8 bytes for storage planning. For character limits, use grapheme clusters for user-perceived count.

Grapheme clusters represent user-perceived characters, correctly counting complex emoji (like 👨‍👩‍👧) as 1 instead of multiple code points.

UTF-8 bytes indicate actual file size, transmission size, and storage size in databases using UTF-8 encoding.