Base64 Encoder & Decoder
Encode and decode Base64 strings instantly. Perfect for encoding text, URLs, and file content. All processing happens locally for maximum privacy.
✓ Instant conversion✓ URL safe encoding✓ File support✓ Local processing
About Base64
Base64 is a group of binary-to-text encoding schemes that represent binary data in an ASCII string format by translating it into a radix-64 representation.
Encoding to Base64 is useful for transmitting binary data in environments that only support text.
About Base64 Encoding
What is Base64?
Base64 is a binary-to-text encoding scheme that converts binary data into ASCII text format. It's commonly used to encode data for transmission over text-based protocols like email and HTTP.
How it Works
- • Uses 64 ASCII characters (A-Z, a-z, 0-9, +, /)
- • Converts 3 bytes into 4 Base64 characters
- • Adds padding with = characters if needed
- • Results in ~33% size increase
Common Use Cases
- • Email attachment encoding
- • Data URLs for images
- • API authentication
- • Configuration file encoding
- • Database binary storage
- • Web development and APIs
Features
- • Encode text to Base64
- • Decode Base64 to text
- • URL-safe Base64 support
- • File content encoding
- • Error handling and validation