Base64 Encoder/Decoder
Encode text to Base64, or decode Base64 back to plain text.
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About this tool
Encodes text to Base64 or decodes a Base64 string back to text, entirely in your browser — useful for embedding small binary-safe data in a URL, a data attribute, or an API request that expects Base64. Handles full Unicode text correctly (not just ASCII) by encoding via UTF-8 bytes first, so accented letters and emoji round-trip correctly.