Quick start
From nothing to a file you control, in about ten minutes. You will create your SuperFile Account by reserving a name, sign in, add a matching extension if you want one, and protect, share and unshare your first file.
#1. Reserve your @name
- Open superfile.com and type the name you want in the reservation box. The register checks availability as you type.
- Pick a class. Individual is for a person, Brand for a company or product name, Institution for a public body (an Institution reservation needs a
.govor.milmailbox). - Enter your email address and press Reserve. A hold is placed on the name at once.
- We email you a 6-digit code. Type it back on the page. That confirms the mailbox, flips the hold to verified, signs you in and shows your welcome.
Your @name is free and yours to keep. Every person gets one free @name, for good; it is spent when you claim it, not while you hold it, so giving it away later does not earn another. A Brand or Institution name is a paid class and can be reserved as many times as you have names to protect.
#2. Sign in
You are already signed in after entering the code. Next time, go to superfile.com/signin and choose one of:
- Email — we send a sign-in link that works for 7 days. Open it on the device you want to use.
- Sign in with your phone — on a desktop, scan the QR code with a phone that is already signed in and approve.
- Passkey — once you have added one in Settings, sign in with your fingerprint, face or security key.
Every path and every setting is on the Sign in & accounts page.
#3. Add a matching .extension (optional)
An @name and a .extension are the same string in the register, so when @yourname is available, .yourname is too. On the reservation page, or later from your dashboard, add .yourname (or any other available extension) to the basket. Extensions are $100 each, up to ten per order, paid securely at checkout when you reserve; the receipt lands in your dashboard and in your inbox.
A branded extension is what your protected files carry: report.pdfs by default, report.acme once you own .acme.
#4. Open your dashboard
superfile.com/dashboard shows your identity card — your primary @name with its registration number, class, wave and status — your names, your extensions, receipts and any transfers waiting for you. From here you can reserve another extension, transfer a name, add a passkey and see where you are signed in. Details: Your dashboard.
#5. Protect your first file
SuperSecure is where files are sealed, shared and unshared. It is in beta at beta.supersecure.com.
- Open beta.supersecure.com. Sign up with your email address and enter the 6-digit code we send, or use Sign in with sup if you already hold a sup account. Your workspace is at
/account; the sidebar is open by default. - Drop a file anywhere in the workspace. It is sealed with split-key encryption and becomes a SuperFile:
quarterly-report.pdfis nowquarterly-report.pdfs. Every page, image and video inside it is rendered by the protected viewer, not handed out as a download. - Share it by naming people — an email address or an @name. Only the people you name can open it, and access is re-checked live on every open.
- See the trail: who opened it, where and when, and which unknown devices tried.
- Unshare one person, or everyone, in one click. Downloaded copies stop opening too, because a copy is useless without your half of the key.
The Protect a file and Share, see & unshare guides go deeper, and The viewer & DRM explains what each platform can display and blank.
#Next steps
- Teams and organisations: compare Plans & tiers, then invite people; Enterprise adds SSO and compliance packs, Institutional runs on your premises with keys you hold.
- Developers: the DRM quick start gets a metered licence in five calls, and Integrations puts protected uploads inside your own site.
- Operators: On-premises install stands up the licence server inside your network in ten minutes.
Updated September 2026