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Base64 Encoder / Decoder
Use this tool to encode plain text to Base64 or decode a Base64 string back to readable text.
Frequently Asked Questions
Base64 is commonly used to transport text or binary data safely through systems that expect plain text.
How this calculator works
Formula explanation
Base64 represents binary data using a 64-character alphabet and padding when needed.
Worked example
Example: "Hello" -> "SGVsbG8="
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