Base64 encoder

Base64 Encoder — Convert Text and Data to Base64 Online

Fast and reliable Base64 encoding tool that converts any text, binary data, or string input into Base64 format. Base64 encoding is essential for transmitting binary data over text-based protocols and is widely used in web development, APIs, and data storage.

Common Uses for Base64 Encoding

• Encoding images and files for embedding in HTML/CSS (data URIs)
• API authentication tokens and Basic Auth headers
• Email attachments (MIME encoding)
• Storing binary data in JSON or XML
• JWT (JSON Web Token) payload encoding
• Encoding binary data for URL transmission

Developers, system administrators, and security professionals use Base64 encoding daily when working with APIs, authentication systems, and data serialization. Our tool handles UTF-8 text and supports all standard Base64 character sets.