Free online converter category

Code Conversion Tools for Base64, URL, HTML, ASCII and Unicode

Browse free code conversion tools for Base64, URL encoding, HTML entities, ASCII, Unicode, text, and developer-friendly conversion tasks.

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Popular Code Conversion Tools

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HTML

HTML entity encode

Encode special characters as HTML entities.

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HTML

HTML entity decode

Decode HTML entities into text.

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ASCII

ASCII converter

Convert ASCII characters and values.

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UNI

Unicode converter

Convert Unicode text and code points.

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Common Formulas and References

Use these references as a quick guide. The converter or linked tools calculate the result automatically.

ReferenceBase64 encodes binary/text data into ASCII characters
ReferenceURL encoding replaces unsafe characters with percent-encoded values
ReferenceHTML entities represent special characters in HTML documents

Code Conversion Tools FAQ

Common questions about this category.

What is code conversion?

Code conversion changes text or data into another representation, such as Base64, URL-encoded text, or HTML entities.

What is Base64 used for?

Base64 is often used to represent binary or text data in an ASCII-safe format.

What is URL encoding?

URL encoding converts unsafe URL characters into percent-encoded values.