The rabbit hole
that sticks
WikiHole lets you explore curated rabbit holes — mysteries, cryptids, paranormal phenomena — and turns every article into spaced-repetition quiz cards via Claude. Casual exploration becomes lasting knowledge.
How It Works
Three steps to lasting knowledge
Fall Down a Rabbit Hole
Pick any mystery, cryptid, or paranormal topic from our curated seed library — all 60+ articles load instantly, no waiting.
Follow the Links
Every article surfaces three related rabbit holes. Dive as deep as you want — your full trail is saved and resumable.
Quiz What You Learned
Claude reads every article you visit and generates spaced-repetition flash cards. Revisit them on schedule and actually retain what you explored.
Exploration that actually sticks
Wikipedia rabbit holes, now with memory
Curated Rabbit Holes
60+ seed articles spanning mysteries, cryptids, paranormal phenomena, and sea creatures — all instant load.
AI Quiz Generation
Claude reads every article you explore and auto-generates multiple-choice questions tailored to what you just learned.
Spaced Repetition
A full SM-2 algorithm schedules each card so you see it again just before you forget it.
Trail History
Every rabbit hole session is saved. Resume exactly where you left off — days or weeks later.
Offline Support
Visited articles are cached locally. Keep reading even without a connection.
Mastery Tracking
See your knowledge score per rabbit hole trail. Unlock mastery when you ace all the cards.
About WikiHole
WikiHole lets you explore curated rabbit holes — mysteries, cryptids, paranormal phenomena — and turns every article into spaced-repetition quiz cards via Claude. Casual exploration becomes lasting knowledge.
Whether you spend 20 minutes or 3 hours going down a rabbit hole, WikiHole turns every session into a spaced learning loop. Included free in the Essentials plan — no extra charge on top of your subscription.