Built for the moments that matter
Whether you are planning for tomorrow or the unthinkable, Superbacked helps the right people recover what matters.
Critical credentials
Root accounts, cloud credentials, TOTP secrets — if only one person holds them, you are one incident away from losing access.
Learn more →Signing keys
PGP master keys — losing them means rebuilding your web of trust from scratch, and managing them on an everyday computer creates unnecessary risk.
Learn more →Digital assets
Seed phrases are bearer instruments — losing them or losing access means losing everything.
Learn more →Superbacked is also great for personal backups — safeguarding master passwords, TOTP secrets, sensitive files and anything else you cannot afford to lose.
Back up what matters most — on archival paper or as files
Superbacked offers two backup types — one for secrets only you should access, one for secrets that need to outlive you.
Encrypted backup
Encrypt secrets using a passphrase — and optionally a provisioned YubiKey — in an encrypted QR code backup called a block, stored on paper or as a file. No account, no internet connection — only you can decrypt them.
Succession planning
Encrypt secrets using a passphrase and split them among people you trust in a set of blocks called a blockset. No single person can access them alone but together the right group can recover what matters — even without you.
Files and folders can be bound to a block as a detached archive — encrypted using a key embedded in the block, stored wherever you choose and restored with the block.
Use dedicated hardware when the stakes are high
Superbacked OS runs air-gapped from memory and a provisioned YubiKey can add a second factor to blocks and archives.
Superbacked OS
Hardened operating system that runs air-gapped by default and entirely from memory, persisting nothing to disk.
Learn more →YubiKey protection
Hardware key that answers a challenge only your passphrase can pose — require a provisioned YubiKey to decrypt blocks and standalone archives.
Learn more →Blocks, archives and derived secrets can all be hardened using paranoid mode — ten times the work and a gigabyte of memory for every passphrase guess, a few extra seconds for you.
Reach for the terminal when the app is not enough
Every build includes a command-line interface — encrypt files and folders from scripts, and reach advanced features kept in the terminal on purpose: provisioning YubiKeys and deriving passwords and Bitcoin wallets. Standalone archives can be created and restored using either.
Verify security claims
Watch how Superbacked works, then check every claim for yourself — it is built in public, open source and ships signed releases
Built in public
Sun Knudsen, a privacy and security researcher, develops and maintains Superbacked in front of 60,000+ subscribers on YouTube.
See channel on YouTube →Open source
Superbacked 2 is released under MIT license and every scheme it relies on is specified in technical documentation.
See source on GitHub →Signed releases
Checksums for every release are signed with Sun’s PGP key and macOS builds are notarized by Apple, so every download can be verified.
See guide →Superbacked is built using open source cryptographic building blocks — Argon2 for passphrase key derivation, fixed-size encryption for encryption with plausible deniability, sss-cli for threshold recovery — all specified in technical documentation. Superbacked name and logo are trademarks (see trademark policy).
Meet the team
Christoffer Carlsson
Maintainer
Open source programmer creating tools for a free society.
Want to contribute as a maintainer or reviewer? Get in touch
Thanks to Zean Moore and our supporters
For high-stakes secrets, use Superbacked OS — a hardened operating system that runs offline and persists nothing to disk.
Copyright (c) Superbacked, Inc.