There explicitly is no uniqueness guarantee. It is known that the same values can encode into many different strings, and they recommend always decoding then re

There explicitly is no uniqueness guarantee. It is known that the same values can encode into many different strings, and they recommend always decoding then reencoding with a stable algorithm to achieve a "canonical" id if one is needed. https://sqids.org/faq#valid-ids https://sqids.org/faq#valid-ids