Base64 Encoder/Decoder

Base64 Encoder & Decoder

Encode and decode text to/from Base64 format. Perfect for data transmission, storage, and API integration.

Text to Encode
Base64 Output
About Base64 Encoding

Base64 is a binary-to-text encoding scheme that represents binary data in ASCII format. It's commonly used for:

  • Email attachments - Encoding binary files for email transmission
  • Data URLs - Embedding images and files directly in HTML/CSS
  • API authentication - Encoding credentials for HTTP Basic Auth
  • Data storage - Storing binary data in text-based formats like JSON

Our Base64 encoder/decoder handles UTF-8 text properly and works entirely in your browser for privacy.