Base64 Encode / Decode
Encode text to Base64 or decode it back.
Enter values
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The formula
maps every 3 bytes of input to 4 Base64 characters
All calculations run locally in your browser and update instantly as you type.
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Frequently asked questions
Is Base64 encryption?+
No. Base64 is encoding, not encryption — anyone can decode it. It is used to safely carry binary data in text formats.
All calculations run locally in your browser. Nothing you type is sent to a server.