@thi.ng/base-n
Arbitrary base-n conversions w/ presets for base8/16/32/36/58/62/64/83/85, support for bigints and encoding/decoding of byte arrays
allbases
Transform values of abritrary size to an arbritrary base
dencodeme
Encode/Decode data using various encoding schemes.
b-buf-b
base-x to bytesbuffer to base-x (x=2,8,10,16,32,36,64)
universal-encoder
Convert any number or ASCII text to any base, using RFC4648 character set or your own custom character sets.