Base64 Encoder/Decoder
Encode text or files to Base64 format, or decode Base64 strings back to their original form. This tool works entirely in your browser for maximum privacy and speed. Essential for developers working with APIs, data transmission, and web development.
Common Use Cases
- • Embedding images or files in HTML/CSS
- • API data transmission and storage
- • Email attachments and web forms
- • Configuration files and environment variables
- • Data URLs for web development
Understanding Base64 Encoding
Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It's widely used in web development, email systems, and data storage where binary data needs to be transmitted over text-based protocols.
How Base64 Works
Encoding Process
Base64 encoding takes binary data and converts it into a string using 64 printable ASCII characters:
- A-Z (26 characters)
- a-z (26 characters)
- 0-9 (10 characters)
- + and / (2 characters)
The = character is used for padding when needed.
Character Set
ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/
Common Use Cases
Web Development
- Data URLs for embedding images
- Storing binary data in JSON
- CSS background images
- Web API data transmission
System Integration
- Email attachments (MIME)
- Configuration files
- Database storage
- Authentication tokens