Vault

Importing and exporting your vault

Bring your passwords in from another password manager, and take your Atrium vault out again as an encrypted backup or as CSV/JSON.

Updated 2026-09-26

Import and export live under Import / export on the vault toolbar (and again under Settings → Vault). Both run entirely in your browser: a file you import is parsed on your device, and an export is decrypted on your device before it's written to disk. Neither one is gated by plan or trial status — they work the same on every plan, always, even a read-only lapsed account.

Importing

Choose Import from another app… and pick where the file came from:

  • 1Password (.1pux)
  • Bitwarden (.json, including password-protected exports)
  • LastPass (.csv)
  • Dashlane (.csv)
  • Proton Pass (.json or .csv)
  • NordPass (.csv)
  • Keeper (.csv)
  • KeePass / KeePassXC (.xml)
  • Chrome, Edge or Brave (.csv, from the browser's built-in password manager)
  • Firefox (.csv, from about:logins)
  • Safari / Apple Passwords (.csv)
  • An Atrium export (.atrium) from another Atrium vault

Pick the file and Atrium usually recognises the format on its own; if it can't tell, choose the source yourself. Before anything is created you get a dry-run report: how many logins, notes and cards it found, which ones look like duplicates of items already in your vault (same name, username and URL), and which folders will be created versus reused. Nothing is written until you confirm. Every imported item is then encrypted on your device and uploaded the same way an item you type in by hand is — the export file itself, and anything it contained, never leaves your browser unencrypted.

Each password manager exports slightly different fields; a few (attachments, password history, some custom field types) may not carry over. The dry-run report lists anything it had to skip.

Exporting

Choose Export (encrypted)… or Export unencrypted CSV / JSON….

Encrypted export (recommended). One .atrium file containing every item and folder in your vault, sealed in your browser with a passphrase you choose at export time (Argon2id + AES-256-GCM — the same primitives that protect your master password; see the export format for the full detail). The file opens on any Atrium account with that passphrase alone, which makes it a real backup: the passphrase is the only thing protecting it, so use a long one and store it somewhere separate from the file. You can choose whether to include file attachments (up to 100 MB total).

Two things are deliberately left out of an encrypted export: time-locked items stay sealed and are listed as not included (their extra lock layer only opens inside its window), and items in a shared or organisation vault aren't part of your personal export.

Unencrypted CSV or JSON. Every password, card number and note in plain, readable text — useful only for moving to another app. You have to re-enter your master password to start one, and a warning asks you to confirm you understand the file is readable by anyone who gets it. Delete it as soon as you've used it; file attachments aren't included in this format.

See also: Your data leaves with you for the wider promise this backs, and logins, secure notes and files for what a vault item can hold.