Base64 Encoder & Decoder

Base64 encoding converts binary data into ASCII text format. This is essential for transmitting binary data through text-based protocols like email or JSON.

Key Features

Encode text to Base64

Decode Base64 strings

Handle binary data

Universal compatibility

Common Use Cases

  • Email attachments
  • Data URLs in HTML/CSS
  • API data transmission
  • Embedding images in code

Frequently Asked Questions

Is Base64 encryption?

No, Base64 is encoding, not encryption. Anyone can decode Base64 without a key.

Why does Base64 increase size?

Base64 increases data size by approximately 33% because it uses 4 characters to represent 3 bytes.

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