Fancy Rat Hub
A tool station for fancy rat keepers — 20 free husbandry tools for health, diet, housing, behavior and planning. Every tool runs offline and saves data in your browser. This site does not sell live animals.
Husbandry Toolbox
20 practical tools across five care domains. Tap any card to open — everything runs in your browser, nothing is uploaded.
Health & Medical
Catch illness early — rats hide symptoms and can deteriorate within 24 hours.
Weight & Growth Log
Weekly % drops, disease alerts & growth curve.
Respiratory & Ammonia Risk
Ammonia score + symptoms + ventilation check.
Health Symptom Checker
Symptoms → possible causes & next steps.
Tumor & Spay Planner
Mammary tumor baseline, lump growth, spay window.
Dental Checker
Chew scoring + drooling/weight-loss triage.
Medication Dosage Guide
Weight-based dose ranges — vet reference only.
Diet & Water
Lab-block-first portions, treat budgets and clean hydration.
Housing, Environment & Hygiene
Size, bedding, climate, foot safety and odor control.
Cage Size Calculator
Net floor space, levels & wire-floor audit.
Bedding Volume Calculator
How much bedding your cage needs.
Temp, Humidity & Stress
Heat/cold-stress scoring with safe-range alerts.
Bar Spacing & Bumblefoot
Escape risk & wire-floor foot injury audit.
Cleaning & Odor Schedule
Ammonia-indexed spot-clean & deep-clean plan.
Behavior & Social Life
Companionship, taming and rat-proofing free-range time.
Planning, Costs & Life Events
Budget for care, navigate accidental litters, and plan travel.
Cost & Vet Emergency Fund
Annual budget with medical stress test.
Age & Lifespan Converter
Rat age to human age & life stage.
Accidental Litter & Inbreeding
Separation dates, due-date, inbreeding risk.
Travel & Pet-sitting Planner
Care gap, sitter checklist & companion plan.
More Resources
Articles, shopping advice and vet guidance.