Base64 Decoder

Decode Base64 encoded strings back into clean, readable text and JSON payloads with instant copy-paste.

INPUT

OUTPUT

Error: Invalid character

Common Use Cases for Base64 Decoder

Decode Basic Auth headers or base64 token payloads to inspect credentials.

Quickly decode webhook payloads or email MIME attachments.

Yes. Decoding happens exclusively in your browser via JavaScript. Nothing is sent to any server.

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