Weight Tracker
Log daily weigh-ins, spot trends and get early-warning context for silent illness.
Evidence-based · Free tools · 100% static
Give your guinea pig a longer, healthier life
Original care guides, three free browser tools and unbiased supply advice — built for new and experienced cavy owners. English, 中文 and 日本語.
✓ 15 in-depth original guides
✓ 3 free tools, data stays in your browser
✓ English · 中文 · 日本語
✓ No live-animal sales — education only
Featured care guides
Practical, vet-aligned answers to the questions every guinea pig owner has.
Free guinea pig tools
Records and calculators run entirely in your browser — no sign-up, no server.
Is it legal to keep a guinea pig where you live?
Look up 8 common breeds and regional notes for 34 provinces/regions of mainland China plus Hong Kong, Macao and Taiwan — with guidance to verify locally.
Open breed lookupEverything else you need
Equipment Buying Guide
Cage sizes, hay cuts, bedding and the traps to avoid — criteria first, brands second.
Exotic Vet Navigation
Red-flag symptoms, what to pack for the clinic and directories by country/region.
PDF Handbooks
Downloadable beginner, nutrition and clinic handbooks (free previews coming soon).
Compliance & Ethics
Our no-live-sale position, advertising standards and content corrections.
Every tool is free. Pro is optional.
Batch records, downloadable PDF packs and personalized plans are planned as a future upgrade — existing features stay free.
Tip: tap the heart (bottom-right) on any article or tool — favorites stay on this device for one-tap return.