Experiments· 2026· Live
Roll
Replayable, verifiable online lottery
Roll is an online drawing tool for forum floor picks, event giveaways and roll calls. It can draw from a numeric range — optionally excluding invalid floors — or from a name list that accepts both Chinese and English separators.
Everything is computed locally in your browser, so names are never uploaded. Results are verifiable and replayable: a fixed random seed means the same setup always produces the same outcome, and a single shareable link lets anyone reproduce the exact same draw. Links can be Base64URL-masked to keep names out of the address bar.
It is built with Next.js as a static export, with SEO details such as JSON-LD and a sitemap baked in.
Features
- Draw from a numeric range, excluding invalid floors
- Draw from name lists (Chinese or English separators)
- Fixed seeds for deterministic, reproducible results
- Local computation — names are never uploaded
- Base64URL-masked links to hide names in the address bar
- Create, copy and share a draw in one link