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Base64 Encoder / Decoder

Encode and decode text or files using Base64

Mode Selection
File Upload
Upload a file to encode to Base64
Text Input
Enter text to encode to Base64
Base64 Output
Base64 encoded result
About Base64

What is Base64?

Base64 is a binary-to-text encoding scheme that represents binary data in ASCII format. It's commonly used for encoding data in email, web pages, and APIs.

Common Use Cases:

  • • Email attachments
  • • Data URLs for images
  • • API authentication tokens
  • • Storing binary data in text formats

Character Set:

Base64 uses 64 characters: A-Z, a-z, 0-9, +, / and = for padding.

Size Increase:

Base64 encoding increases the size by approximately 33% due to the encoding overhead.

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