UCE-8 — Unicode 3-byte variable-width Compact Encoding — is a character encoding sized for the world's living scripts, reaching 128 × 128 × 68 = 1,114,112 characters in at most three bytes. UTF-8 charges most of the world's living languages three bytes per character. UCE-8 charges two.
Source: [Dev.to](https://dev.to/erdeneochir_sh_e862b1f51/uce-8-fitting-the-worlds-living-scripts-into-two-bytes-102j)