Update

Published on
August 3, 2026
Looking Ahead: Sekai Viewer Reborn and the Migration Plan
Sekai-Viewer Update Roadmap Migration
Sekai Viewer will gradually move to Sekai Viewer Reborn. The current site will remain available during the transition while the new experience grows.
Published on
September 26, 2023
3rd Anniversary of Project Sekai and the Reborn of Sekai Viewer
3rd-anniversary sekai-viewer update reborn
The Project Sekai Colorful Stage will have its 3rd anniversary very soon, which will bring many updates, so does Sekai Viewer.