Base64 Encoder & Decoder
Encode plain text to Base64 or decode Base64 back to text
Input
Output
Common Uses for Base64
📧 Email Attachments
Base64 is commonly used to encode binary data (like images) for transmission via email protocols that only support text.
🔐 Data in URLs
URL-safe Base64 encoding is used to pass small amounts of data safely through URLs without special characters causing issues.
🖼️ Inline Images
Data URLs (using Base64) allow embedding small images directly in HTML/CSS files to reduce HTTP requests.
🔑 API Authentication
Many APIs use Base64 encoding for credentials in HTTP Basic Authentication headers.
🔒 Is Base64 Encryption?
No, Base64 is NOT encryption! It's simply an encoding scheme that converts binary data to ASCII text format. Anyone can decode Base64 back to its original form - there's no secret key involved. Think of it like writing in a different alphabet - the information is still readable by anyone who knows that alphabet. If you need to protect sensitive data, use proper encryption methods (like AES, RSA, etc.) instead of Base64.