Free Tool
Base64 Encoder Decoder
Encode text to Base64 or decode Base64 instantly in your browser. Useful for APIs, JWT tokens, debugging, and frontend development.
Input
Text / Base64Shortcut: Ctrl + Enter to encode.
Output
ResultLearn Base64
How Base64 encoding works in JavaScript
Learn how Base64 encoding works, why JWT tokens use it, and common encoding mistakes developers make.
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