Base64 Encryption - Base64 Encoder

Free online Base64 encryption tool - encode text to Base64 format

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ℹī¸ About Base64 Encoding

Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It's commonly used for encoding data in email, URLs, and web applications. The encoded data is approximately 33% larger than the original.

📝 Format Examples

Example 1: Simple Text

Plain Text Input:

Hello World!

Base64 Output:

SGVsbG8gV29ybGQh

Example 2: Credentials (for APIs)

Plain Text Input:

username:password123

Base64 Output:

dXNlcm5hbWU6cGFzc3dvcmQxMjM=

Example 3: JSON Configuration

Plain Text Input:

{"api":"v1","key":"abc123"}

Base64 Output:

eyJhcGkiOiJ2MSIsImtleSI6ImFiYzEyMyJ9

💡 Common Use Cases

  • Encoding credentials for HTTP Basic Authentication
  • Embedding images in HTML/CSS (data URIs)
  • Storing binary data in JSON or XML
  • Encoding email attachments (MIME)
  • Safely transmitting data through URL parameters