Tools
Play · Contribute · Verify
Interactive surfaces built on top of the Codex data. Test your knowledge, curate what you know, and help make the reference sharper for everyone.
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Interactive
Built from the same data as the rest of the Codex
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Trivia Trial
Test how deep your One Piece knowledge runs. Questions drawn from real Codex data — fruits, epithets, chapter debuts, SBS facts, and more. Endless rounds.
50+ question types · randomised
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Prove an Idea
Type any claim about One Piece. Returns CONFIRMED · LIKELY · CONTRADICTED · UNKNOWN with a citation chain drawn from the Codex's canon engine.
Free-path claim tester
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Character Compare
Stack 2–6 characters side-by-side across every recorded stat. Quick-pick the Strawhats, Yonko, Admirals, or D-Clan for instant comparison.
Side-by-side stat grid
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Compare Heights
Visual silhouette comparison at true canon scale. Adjustable ruler — see just how absurd the size differences really are.
429 characters with height data
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Contribute
Help sharpen the Codex
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Curate Facts
Submit canon fact corrections, new SBS entries, and character data fixes. Your contributions go into the GitHub review queue and are credited on merge.
Submission → GitHub Issues
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Theory Workbench
Build and stress-test theories with cited Fact Cards. Pin evidence from SBS entries, character pages, and canon facts — then submit to the Theory Forge.
Cited evidence builder
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Corrections Inbox
Live feed of reader-submitted corrections, theory suggestions, and SBS fixes flowing in from GitHub Issues. See what's been caught and what's been fixed.
Public · transparent curation