Toolwinder
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Encoding & Decoding

Encode and decode Base64, URL, HTML entities, Unicode, and Hex. Runs completely in your browser.

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Frequently Asked Questions

Which encoding schemes are supported?+
Base64, URL encoding, HTML entities, Unicode escape sequences (\uXXXX), and Hex — each with both encode and decode directions.
Does Base64 handle special characters and emoji correctly?+
Yes. Encoding/decoding is UTF-8 aware, so multi-byte characters like emoji and non-Latin scripts round-trip correctly.
What happens if I try to decode invalid input?+
The tool shows a clear error message (e.g. malformed Base64 or odd-length hex) instead of silently producing garbage output.

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