OffKai Expo Gen 4

OffKai Expo is a volunteer-run convention dedicated to VTubers and virtual arts, describing itself as the first VTuber-focused convention, held in San Jose, California. The 2027 edition runs April 16-18, 2027 at the San Jose McEnery Convention Center, San Jose, California, and badge sales are already open: general full-weekend memberships grant access to all three days, with meet & greet raffles, maid cafe tickets and other limited items sold through the same account-based registration system.

Programming spans an artist and vendor hall, an industry exhibit hall, the Yabai Market, cosplay contests and the Cosplay Museum, fan meetups and special-guest meet & greets, a gaming arcade, an itasha showcase, a keyboard meetup, the OffKai maid cafe, OffChoir, OffKai LIVE and OffKai Relay concerts. Attendee and cosplay templates were announced as coming soon. Detailed maps and hours, plus the 2027 hotel block, had not yet been released at the time of verification.

Previous editions: 2022, 2023, 2024, 2025 (Gen 4, June 20-22, 2025 at the San Jose Convention Center) and 2026 (Gen 5, July 24-26, 2026).