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Base64 Calculator
Encode hex or text to Base64 and decode Base64 back to hex or plaintext
⚙️ Configuration
🔄 Input
Enter hex bytes (e.g. 48656C6C6F for "Hello"). Spaces are allowed.
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📖 About This Tool
What is the Base64 Calculator?
The Base64 Calculator encodes hexadecimal or text data to Base64 and decodes Base64 strings back to hex or text. Base64 encoding is commonly used for transmitting binary data in text-based protocols.
🛠️ How to Use
- Select Encode or Decode.
- Choose the input format (Hex or Text).
- Enter your data.
- Click Calculate to see the result.
❓ FAQ
When is Base64 used in payments?
Base64 is used in API payloads, JWT tokens for 3D Secure authentication, XML-based payment messages (ISO 20022), and encoding binary cryptographic data for transport in text protocols.