Base64 Decoder
Decode base64 strings back to clean UTF-8 text or examine payload contents.
Base64 Decoder
developerNO SIGN-UPDecode base64 strings back to clean UTF-8 text or examine payload contents.
Base64 Input String
Decoded Content
Security Guarantee: All decoding algorithms run in local browser RAM using native Web APIs. No cookies, sensitive data, or tokens leave your workstation.
Paste any valid Base64 string into the input box.
The decoded plain text appears automatically in the output container.
Copy the decoded text with a single click.
Can I decode base64 strings containing special symbols or emojis?
Yes. Our decoder includes UTF-8 URI decoding to correctly unpack multi-byte Unicode characters and emojis.
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Base64 Encoder
Safely encode UTF-8 text strings or binary assets into base64 data URIs.