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Text encode/decode
Pick Encode or Decode; results appear live. Unicode uses UTF-8.
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Charset
Standard by default; URL-safe switches to -_ for putting in URLs.
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File to Base64
Drop a file to get a Data URI; images can be previewed or downloaded back.
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Note
All local; nothing is uploaded.
FAQ
No. Everything is processed locally in your browser.
The input is not valid Base64, or the charset option doesn’t match.
A data: URL embedding the resource; an image can go directly into an img src.