Undertone X265 ((better)) Page

: Undertone x265 is the criterion collection of video encoders—utterly impractical for daily use, but unmatched when you need a perfect, grain-respecting archival master. For most users, a well-tuned stock x265 with --preset slower --tune grain is 90% of the way there. For the remaining 10%, Undertone is the silent, slow, and sublime answer.

Undertone x265 is a of the official x265 (HEVC/H.265) encoder. While mainstream builds (like those from MulticoreWare) prioritize encoding speed or broad device compatibility, Undertone focuses on maximum compression efficiency and psychovisual retention —often at the cost of slower encoding speeds. undertone x265