Base64 Converter
Input
Result
How to use
1.
Paste your text into the Input panel
2.
Click Encode to convert to Base64, or Decode to reverse it
3.
Copy the result with the Copy button
Common uses
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Encoding credentials in HTTP Basic Auth headers
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Embedding small images directly in CSS or HTML
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Passing binary data through text-based APIs
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Storing binary data in a JSON field
Base64 encodes binary data as ASCII text using a 64-character alphabet. It increases data size by ~33% but makes binary-safe transmission possible over channels that only support text.