Base64 Encoder & Decoder

Encode text to Base64 or decode Base64 back to text

What is Base64 Used For?

  • Email attachments (MIME)
  • Data URIs — embedding images in HTML/CSS
  • API authentication — Basic Auth headers
  • URL safe data — transmitting binary data in URLs

Note: Base64 increases data size by ~33%. It is encoding, not encryption.

Read the Guide

Learn more with our in-depth blog post.

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