Base64 Encoder / Decoder
Encode or decode Base64 text and files instantly online. Free Base64 converter for JWTs, data URLs, and auth headers — everything runs in your browser.
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About Base64 Encoder / Decoder
Encode or decode Base64 in one click — entirely in your browser. • Encode plain text to Base64 for use in JWTs, data URLs, or auth headers • Decode a Base64 string back to its original form instantly • Switch between encode and decode mode with one click • Nothing is sent to a server — all processing stays local