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Base91 Codec

91-character efficient encoding, efficiency close to Base128

Enter Text

Original Text

Hello, World! Base91 is efficient!

Base91 Encoded

=OwJh=|AQ:r??Y>F~CDm9jpweZP@;cASV64P8jr5_C

Original Length

34B

Encoded Length

42B

Expansion Rate

23.5%

✓About 23% more efficient than Base64 encoding

✓Uses printable ASCII characters, fully compatible with text protocols

✓No checksum, suitable for internal data transfer

△Non-standard algorithm, suitable for scenarios where interoperability is not needed

ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!#$%&()*+,-./:;<=>?@[]^_`{|}~