If you use a random number then you need to store it somewhere to map back to the original. Sqids is an encoding, you can decode the sqid back to the original w

If you use a random number then you need to store it somewhere to map back to the original. Sqids is an encoding, you can decode the sqid back to the original without storage overhead. Features like the profanity filter avoid creating URL routes like /user/cuntFh. Cross language support allows interop between the encoder and decoder across microservices written in different languages.