Base64 and URL encoding

Encode or decode UTF-8 text and URL components.

How it works and limits

Base64 expects standard padded canonical text with no whitespace; decoding requires valid UTF-8. URL mode encodes one component, not a complete URL; plus signs stay plus signs when decoding. Malformed percent escapes are rejected. Encoding is not encryption. Do not paste tokens, passwords or sensitive content.

Worked example

action: UTF-8 → Base64
source: Hello, dunia!

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Base64 and URL encoding

Source

Output