Everything you're worth, sealed in one private vault only you can open.
Coffer holds your net worth, your passwords and seed phrases, your important documents, and your estate plan in a single encrypted vault that lives on your own device. No accounts. No cloud. No company holding your keys — not even us. Disconnect the internet and it works exactly the same.
A private office for everything you own.
Six tools that usually live across a dozen apps, logins, and subscriptions — consolidated into one encrypted vault that only you can unlock.
Net-worth dashboard
Every asset, investment, and debt in one running total — charted over time and broken down by class: real estate, brokerage, crypto, cash. Finally see the whole picture in one place instead of five.
Password & seed-phrase vault
Crypto seed phrases, exchange logins, bank and email credentials, card numbers — sealed behind one master password with AES-256. A built-in generator creates strong passwords you never type into a website.
Secure document store
Keep deeds, wills, insurance policies, tax records, and scans of what matters encrypted alongside everything else. Preview, rename, and download them anytime — without trusting a cloud drive.
Planning calculators
SIP, FIRE, compound-growth, loan, and goal planners are built in, so you can model real decisions against your actual numbers — no spreadsheet, no signup, no data leaving the page.
Estate & inheritance
Record who inherits what, where every deed and key is kept, and the final wishes your family will need. The hardest conversation, written down and encrypted, ready the day it matters.
Truly offline & private
It's one file you own outright. Open it on your Windows or Mac, disconnect entirely, and every feature keeps working. No account, no cloud, no telemetry — and nothing about your money ever leaves your machine.
Run the numbers without leaving the vault.
A live preview of two of Coffer's calculators. Drag the sliders — nothing you enter is ever sent anywhere.
SIP calculator
FIRE calculator
The safest place for your money is nowhere but your device.
Coffer has no backend to breach, no database to leak, and no account to phish. Everything you enter is encrypted with AES-256-GCM and stays inside your vault, unlocked only by a master password that never leaves your machine. Cut the connection and it behaves exactly the same — proof it never phones home.
- Zero servers — nothing to hack, subpoena, or leak in someone else's breach.
- AES-256 encryption with PBKDF2 key stretching on your master password.
- Fully air-gapped — works with the Wi-Fi off, which is how you know it never sends your data anywhere.
- Back it up like any document — a USB drive, an encrypted disk, a safe. You decide where it lives.
What happens to all of it when you're gone.
Holding your own keys has a hard question most tools quietly ignore: if only you can open the vault, what happens to your family? Coffer answers it.
Name your beneficiaries. Note where every deed, key, and account is kept. Attach the letters, policies, and instructions that matter. Write down exactly how your loved ones reach what's theirs — and where the master password is recorded for them. It stays encrypted and private until the day it's needed. No attorney's server, no subscription, no stranger in the loop.
From purchase to private in four steps.
Purchase
Pay once through secure checkout. There's no account to create.
Get your vault
We email a private link to your personal Coffer vault, ready to download.
Open it on your desktop
Double-click to open it on Windows or macOS. No install, no extension, no setup.
Set your password
Your data encrypts on the first save. From then on, only you can ever unlock it.
Buy it once. Keep it for life.
Most people pay for a password manager, a net-worth tracker, and an estate-planning service — three subscriptions, every year, forever. Coffer is all three in one vault, for a single payment you never renew.
- One encrypted vault, yours forever
- Net-worth dashboard & tracking
- Password & seed-phrase vault with generator
- Secure document store
- Estate & inheritance planning
- All planning calculators (SIP, FIRE & more)
- Works 100% offline, forever
- Free lifetime updates
Why $129 is the fair price
The tools Coffer replaces aren't cheap — and they bill you again every year. Here's a typical stack:
Coffer pays for itself before the first renewal — and you never see a charge again. You also get something subscriptions can't: a vault no company can lock you out of, raise the price on, shut down, or get breached.
Trusted by people who'd rather not trust anyone with their money.
I stopped trusting cloud password managers years ago. Coffer is the first thing that keeps my keys and my net worth in one place I actually control.
My whole portfolio and my wife's, plus every seed phrase, in a file on an encrypted drive in our safe. No subscriptions. Exactly how it should be.
The FIRE calculator alone replaced three spreadsheets. That it runs offline is what sold me — nothing about my money ever leaves the laptop.
Everything you'd want to know first.
The moment your payment clears, we email a private download link to your personal Coffer vault. There's no account to set up — the vault itself is the product. If your link hasn't arrived within a few minutes, email support@coffershield.com and we'll sort it out.
You're not trusting us with anything — that's the entire design. Coffer has no server, stores no copy of your data, and never sees your master password. We can't read your vault, sell your information, or lose it in a breach, because it never reaches us. Once it's yours, we're out of the loop.
Yes. Everything you enter is encrypted with AES-256-GCM and unlocked only by a master password that never leaves your device. Because there's no server, there is nothing to breach remotely — the only way in is your password, on your machine.
We can't recover either — by design, Coffer keeps no copy of your data or your key. Treat your vault like a property deed: keep encrypted backups on a USB drive, an external disk, or in a safe, and record your master password somewhere your trusted people can find it.
Coffer is built for desktop — Windows and macOS — and that's what we officially support. It can technically open in a phone browser, but we don't recommend it: mobile browsers handle local file storage and backups inconsistently, which isn't a risk worth taking with your most sensitive records. For a reliable experience, keep Coffer on a Windows or Mac computer.
Only to receive it. After that it runs completely offline — you can disconnect entirely and every feature still works, which is the clearest proof your data never goes anywhere.
No. Coffer is a one-time purchase with free lifetime updates. No monthly fees, no renewals, no upsells. You pay once and own it.
Your wealth deserves a vault, not a login.
One encrypted vault. Yours forever. Working even when the rest of the world is offline.