Base91 Encode/Decode
Efficient binary encoding — ~13% more efficient than Base64
Base91 Encoding Guide
Encoding Principle
- Uses 91 printable ASCII characters
- Encodes 13 bits of binary data into 2 characters
- Higher encoding density than Base64
- Shorter output, ideal for bandwidth-limited scenarios
Efficiency Comparison
- Base64: 133.3% overhead (3 bytes → 4 chars)
- Base85: 125.0% overhead (4 bytes → 5 chars)
- Base91: ~122.6% overhead
- Base91 uses ~13% fewer characters than Base64