Base64 / Base64URL

Encode/decode locally (UTF-8). Also shows decoded bytes as hex. No network.

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Tip: decoding accepts base64 or base64url (with/without padding).
Input
Output
Decoded bytes (hex)
Format: space-separated bytes (e.g., 7B 22 61 22 3A 31 7D). Useful for byte-accurate forensics.