SerialKeep
A 3J Systems product
Your firearms and everything in your home. Private. Organized. Always yours.
One private vault for gun owners and homeowners — serial numbers, photos and receipts for your firearms, plus a room-by-room home inventory ready for insurance.
Privacy promise
Your collection stays yours. Encrypted serials. Optional 2FA. No external lookup. No shop-network matching. No public registry. Never shared with outside agencies.
Add SerialKeep to your home screen
It opens full screen, like an app, with one tap.
Tap Share , then Add to Home Screen.
Built for gun owners
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Firearm records
Make, model, caliber, action, barrel, serial, FFL/dealer, photos and receipts — private to you.
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Scan it, don't squint
Point your phone at a serial, barcode or receipt. Free on your first 3 items.
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Private by design
Encrypted serials, private photos, optional 2FA. Location data is stripped from pictures.
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Proof when you need it
Printable proof of ownership and an insurance PDF for your records — for you and your insurer only.
SerialKeep Home
Your home inventory, ready for insurance
Walk room by room. Save serials, photos and receipts for TVs, jewelry, tools and appliances. Free for up to 25 home items — Plus unlocks walk-through and the Home insurance PDF.
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Room-by-room list
Living room, kitchen, garage — organize valuables the way you walk through your house. Free for up to 25 items.
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Walk-through mode Plus
Snap photos room by room now; fill in serials and prices later.
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Home insurance PDF Plus
One report by room with photos, serials and totals — or a claim pick-list of only the damaged or stolen items.
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Serials, photos and receipts
Keep make, model, serial, purchase details, photos and receipts on each home item so you have proof ready.
Standard, Plus and Business
| What you get | Standard | Plus |
|---|---|---|
| Add and view items by hand (details and photos, lost or stolen shown on the item) | Up to 3 guns, 25 home | Unlimited |
| Insurance report as a PDF, to give to your insurance company | Yes | Yes |
| Scan a serial number with your camera | Yes | Yes |
| Places: where each item is kept | Yes | Yes |
| Scan a barcode to fill in make and model | Yes | Yes |
| Scan a receipt to fill in date, store and price | Yes | Yes |
| Yearly "update my values" reminder and Review your values page | No | Yes |
| Reminders (warranty ending, missing receipts) | No | Yes |
| Household sharing | No | Yes |
| Offline copy of your list (emergency export) | No | Yes |
| Print your list | No | Yes |
| Lost-item alert and checklist | No | Yes |
| Trusted contact (a copy of your list in an emergency) | No | Yes |
| Home walk-through (room-by-room photo add) | No | Yes |
| Home insurance PDF (by room, claim pick-list, include/exclude guns) | No | Yes |
| Yearly backup email | No | Yes |
Coming on Plus: ammo inventory, range log, maintenance by rounds, optics linked to guns, and SI helpers (Super Intelligence) for photo ID and value estimates.
Ready to start?
Standard · free for up to 3 firearms
Firearm records, photos, receipts, scanning and an insurance PDF. Plus up to 25 home items. No card needed.
Need more? SerialKeep Plus
Unlimited firearms, household sharing, reminders, offline backup, trusted contact and more.
Yearly
$49.99
per year
Founding: $29.99 first year
Monthly
$4.99
per month
Save about 17% with yearly
Billed securely through Stripe. Cancel anytime.
Business Coming soon
For gun shops, ranges, security companies and collectors with staff. Suggested from $29.99/mo (3 seats). Not an FFL bound book or ATF 4473 system.
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Questions? rick@3j-systems.com