Base64 Encoder / Decoder
Developer tools
URL Encoder / Decoder
Encode a UTF-8 URL component or decode percent-encoded text locally without opening it.
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How it works
Choose component encoding or decoding, enter text, then transform it locally without navigation.
Useful notes
This tool uses encodeURIComponent and decodeURIComponent semantics. Spaces become %20; a literal + remains + when decoded. It does not apply full-URI preservation or form-plus rules.