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About Base64 Encoding
What is Base64?
Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It's commonly used to encode data that needs to be stored or transferred as text, such as images in HTML or binary data in JSON.
Common Uses:
- Embedding images in HTML/CSS
- Encoding binary data in JSON
- Email attachments
- Basic authentication headers
- Data URLs
Technical Details:
Alphabet: A-Z, a-z, 0-9, +, /, =
Padding: = characters for incomplete groups
Ratio: ~33% size increase
Groups: 3 bytes → 4 characters
URL-Safe Variant:
URL-safe Base64 replaces + with - and / with _ to make it safe for URLs and filenames.
Base64 Encoder/Decoder Features
Text Encoding
Encode/decode text strings
File Support
Encode/decode files
Image Encoding
Convert images to Base64
Instant Results
Real-time processing