[dloreto]

I hear you ... and I debated using either base58 or base64url. I do like the more compact encoding they provide.

Ultimately I ended up leaning towards a base32 encoding, because I didn't want to pre-suppose case sensitivity. For example, you might want to use the id as a filename, and you might be in an environment where you're stuck with a case insensitive filesystem.

Note that TypeID is using the Crockford alphabet and always in lowercase – *not* the full rules of Crockford's encoding. There's no hyphens allowed in TypeIDs, nor multiple encodings of the same ID with different variations of the ambiguous characters.