Voted by ₥AN$A, Air Planes, durdy, Hovhannes Mkhitaryan, kaleb, rookepoole, Sharon, Wil

A crew points it at any URL and red-teams it together without all finding the same bug. Everyone is auto-assigned a different lane — forms, small screen, keyboard, edge input, the flow, slow+cold, links, words, look, what's missing. Coverage is inverted: covered lanes recede, untouched ones stay dashed orange saying "nobody tested this", and the header counts lanes still dark rather than percent done. File a finding and it fingerprints your words. If someone already reported it differently, it stops you and makes you either +1 theirs or say something new. Bugs, feature ideas, design feedback and real code patches all pin to the same board as paper notes. "Open a pull request" fetches the target's live source through the Worker, you edit it in place, and it diffs your edit into a patch. "Red team with AI" fetches the page and runs real checks — CSP, clickjacking, HSTS, nosniff, tab-nabbing, mixed content, viewport, alt text, password-over-GET — pinning every hit through the same duplicate gate. An AI Reviewer reads every patch automatically, answers @bot in chat, and can be asked about any finding. Plus a shared whiteboard, sticky notes, a plan list and chat. The target opens in your own tab, not an iframe, so logins and paywalled pages work.

Models

Claude Opus 5, Llama 3.1, GPT-5 Codex

Cost

~55k