Base64 Encode/Decode
Encode text to Base64 or decode Base64 strings back to plain text. Fast, free, and runs entirely in your browser.
How to Use
- Enter or paste your text in the input area
- Click Encode to convert to Base64, or Decode to convert from Base64
- Copy the result with the Copy button
Frequently Asked Questions
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What is Base64 encoding?
Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It is commonly used to embed images in HTML/CSS or transmit data over text-based protocols.
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Is Base64 encryption?
No, Base64 is an encoding, not encryption. It does not provide any security. Anyone can decode a Base64 string back to its original form.
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Does this tool support UTF-8?
Yes, this tool fully supports UTF-8 encoded text, including characters from all languages.
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What is the maximum input size?
Since this tool runs in your browser, the limit depends on your device's memory. Typically it handles several megabytes without issues.