Decode Base64: MTIz
Base64 Input
MTIz
Decoded Text
123
The Base64 string "MTIz" decodes to: "123"
How it works
Base64 decoding converts a Base64-encoded string back to the original data. Each 4 Base64 characters decode to 3 bytes of original data.
Common use cases
- Encoding data in URLs and email
- Storing binary data in JSON or XML
- HTTP Basic Authentication headers
- Embedding images in HTML/CSS
- JWT token payloads
Try the encoder
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