AI-Powered Deep Research — Now in Open Beta

Curate the feel of 2026. Synthesize the whole web.

Organize your thoughts into structured Burrows, run recursive AI deep research seamlessly, and secure your knowledge base offline.

Rabbit Hole Dashboard Mockup

Features built for deep focus.

Everything you need to research and store knowledge permanently.

Burrows & Collections

Sort your documents, videos, and raw text notes into intuitive, nested Burrows. Never lose track of a thought loop again.

Offline Persistence

Pin specific Burrows or entire collections explicitly for offline use. Perfect for flights or disconnected deep work sessions.

Defensive Curation

Your knowledge base is yours. Granular follower privacy, bidirectional blocking, and active content safety reporting.

Autopiloted Deep Research.

Hitting a dead end? Ask our integrated Gemini 3.0 AI agent to synthesize the web directly into your Burrow. It automatically browses, extracts insights, generates nested sub-collections, and securely cites the original sources.

  • Finds reliable academic and public sources.
  • Populates nested burrows instantly.
  • Conversational AI chat overlay on your stacks.
AI Deep Research Feature

Two beautiful themes. One experience.

Soft Paper for focused daylight sessions. Dark Slate for late-night deep dives. Toggle anytime.

Soft Paper

Clean, warm, and distraction-free. Inspired by premium stationery with muted earth tones and gentle shadows.

Dark Slate

Deep, elegant, and easy on the eyes. Engineered for marathon research sessions with zero eye strain.

Try it now — click the in the navigation bar above.

Simple, transparent pricing.

Choose the tier that fits your depth of discovery.

Viewer

Free

For casual researchers.

  • 5 Burrows · 1 Collection
  • 10 sources per Burrow
  • 250 MB Vault storage
  • 50K AI tokens
Get Started Free

Plus

$4.99/mo

For serious organizers.

  • 25 Burrows · 10 Collections
  • 30 sources per Burrow
  • 3 GB Vault
  • 1M AI tokens

Organizer

$7.99/mo

For power curators.

  • 75 Burrows · 30 Collections
  • 100 sources per Burrow
  • 15 GB Vault
  • 4M AI tokens · unlimited notes

Pro

$14.99/mo

For AI power-users.

  • Unlimited Burrows & Collections
  • Unlimited sources
  • 50 GB Vault · BYOK support
  • 10M AI tokens · Deep Research

Paid tiers launching soon. Create a free account now to lock in early-adopter perks.

Frequently Asked Questions